<!DOCTYPE html>
<html>

  <head>
    <!-- <link data-require="fullcalendar@1.6.1" data-semver="1.6.1" rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/fullcalendar/1.6.1/fullcalendar.min.css" /> -->
    <link data-require="bootstrap-css@*" data-semver="2.3.2" rel="stylesheet" href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" />
    <link rel="stylesheet" href="FullCalendar.css" />
    <script data-require="jquery@*" data-semver="1.11.0" src="//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
    <script data-require="jqueryui@*" data-semver="1.9.2" src="//cdnjs.cloudflare.com/ajax/libs/jqueryui/1.9.2/jquery-ui.min.js"></script>
    <script data-require="angular.js@1.4.8" data-semver="1.4.8" src="https://code.angularjs.org/1.4.8/angular.js"></script>
    <script data-require="bootstrap@*" data-semver="3.3.6" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/js/bootstrap.min.js"></script>
    <script src="moment.js"></script>
    <script src="http://angular-ui.github.io/bootstrap/ui-bootstrap-tpls-0.13.0.min.js"></script>
    <script src="FullCalendar.js"></script>
    <!-- <script data-require="fullcalendar@1.6.1" data-semver="1.6.1" src="cdnjs.cloudflare.com/ajax/libs/fullcalendar/2.1.1/fullcalendar.min.js"></script> -->
    <script src="ui-calendar.js"></script>
    <link rel="stylesheet" href="datetimepicker.css" />
    <script src="datetimepicker.js"></script>
    <link rel="stylesheet" href="style.css" />
    <script src="script.js"></script>
  </head>

  <body ng-app="ExampleApp">
    <div ng-controller="ExampleController">
      <div>
      Event Title:

              <input type="text" ng-model="event.Title" />
      </div>
      <div>
      Start Date Time:
              <div class="dropdown">
          <a class="dropdown-toggle" id="dropdown2" role="button" data-toggle="dropdown" data-target="#" href="#">
            <div class="input-group">
              <input type="text" class="form-control" data-ng-model="event.startDate" />
              <span class="input-group-addon">
                <i class="glyphicon glyphicon-calendar"></i>
              </span>
            </div>
          </a>
          <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">
            <datetimepicker data-ng-model="event.startDate" data-datetimepicker-config="{ dropdownSelector: '#dropdown2' }"></datetimepicker>
          </ul>
        </div>
      </div>
      <div>


      End Date Time:
              <div class="dropdown">
          <a class="dropdown-toggle" id="dropdown3" role="button" data-toggle="dropdown" data-target="#" href="#">
            <div class="input-group">
              <input type="text" class="form-control" data-ng-model="event.endDate" />
              <span class="input-group-addon">
                <i class="glyphicon glyphicon-calendar"></i>
              </span>
            </div>
          </a>
          <ul class="dropdown-menu" role="menu" aria-labelledby="dLabel">
            <datetimepicker data-ng-model="event.endDate" data-datetimepicker-config="{ dropdownSelector: '#dropdown3' }"></datetimepicker>
          </ul>
        </div>
      </div>
      <button type="button" class="btn btn-primary" ng-click="addEvent()">
      Add Event
    </button>
      <button type="button" class="btn btn-primary" ng-click="showCal()">
      {{ showIt ? 'hide' : 'show'}} Calendar
    </button>
      <button type="button" ng-click="renderCalender()" class="btn btn-default"> Render </button>
      <div ng-show="showIt">
        <div id="calendar" ui-calendar="calendarConfig" ng-model="eventSources" calendar="myCalendar"></div>
      </div>
    </div>
  </body>

</html>
app = angular.module('ExampleApp', ['ui.calendar','ui.bootstrap','ui.bootstrap.datetimepicker']);

app.controller('ExampleController', function($scope, $log, uiCalendarConfig, $timeout) {
  $scope.renderCalender = function(calendar) {
    console.log($scope.events)
    uiCalendarConfig.calendars.myCalendar.fullCalendar('removeEventSource', $scope.events)
  };
  $scope.uiCalendarConfig = uiCalendarConfig;
  $scope.events = [{
    "id": "51c54235fb4c960b37000014",
    "title": "Sample Event",
    "start": "2016-01-26T08:00:00+08:00",
    "end": "2016-01-26T10:00:00+08:00",
    "url": "http://google.com/",
    "allDay": false
  }];

  $scope.eventSources = [$scope.events];

  $scope.calendarConfig = {
    selectable: true,
    selectHelper: true,
    editable: true
  };
  
  $scope.eventRender = function( event, element, view ) { 
        element.attr({'tooltip': event.title,
                     'tooltip-append-to-body': true});
        $compile(element)($scope);
    };

  $scope.addEvent = function() {
    $scope.events.push({
      title: $scope.event.Title,
      start: $scope.event.startDate,
      end: $scope.event.endDate
    });
    console.log($scope.pendingRequests);
  };
  $scope.showIt = true;
  $scope.showCal = function() {
    $scope.showIt = !$scope.showIt;
    $scope.showIt && $timeout($scope.renderCalender);
  };


});
/* Styles go here */

/*!
 * FullCalendar v2.1.1 Stylesheet
 * Docs & License: http://arshaw.com/fullcalendar/
 * (c) 2013 Adam Shaw
 */


.fc {
	direction: ltr;
	text-align: left;
}

.fc-rtl {
	text-align: right;
}

body .fc { /* extra precedence to overcome jqui */
	font-size: 1em;
}


/* Colors
--------------------------------------------------------------------------------------------------*/

.fc-unthemed th,
.fc-unthemed td,
.fc-unthemed hr,
.fc-unthemed thead,
.fc-unthemed tbody,
.fc-unthemed .fc-row,
.fc-unthemed .fc-popover {
	border-color: #ddd;
}

.fc-unthemed .fc-popover {
	background-color: #fff;
}

.fc-unthemed hr,
.fc-unthemed .fc-popover .fc-header {
	background: #eee;
}

.fc-unthemed .fc-popover .fc-header .fc-close {
	color: #666;
}

.fc-unthemed .fc-today {
	background: #fcf8e3;
}

.fc-highlight { /* when user is selecting cells */
	background: #bce8f1;
	opacity: .3;
	filter: alpha(opacity=30); /* for IE */
}


/* Icons (inline elements with styled text that mock arrow icons)
--------------------------------------------------------------------------------------------------*/

.fc-icon {
	display: inline-block;
	font-size: 2em;
	line-height: .5em;
	height: .5em; /* will make the total height 1em */
	font-family: "Courier New", Courier, monospace;
}

.fc-icon-left-single-arrow:after {
	content: "\02039";
	font-weight: bold;
}

.fc-icon-right-single-arrow:after {
	content: "\0203A";
	font-weight: bold;
}

.fc-icon-left-double-arrow:after {
	content: "\000AB";
}

.fc-icon-right-double-arrow:after {
	content: "\000BB";
}

.fc-icon-x:after {
	content: "\000D7";
}


/* Buttons (styled <button> tags, normalized to work cross-browser)
--------------------------------------------------------------------------------------------------*/

.fc button {
	/* force height to include the border and padding */
	-moz-box-sizing: border-box;
	-webkit-box-sizing: border-box;
	box-sizing: border-box;

	/* dimensions */
	margin: 0;
	height: 2.1em;
	padding: 0 .6em;

	/* text & cursor */
	font-size: 1em; /* normalize */
	white-space: nowrap;
	cursor: pointer;
}

/* Firefox has an annoying inner border */
.fc button::-moz-focus-inner { margin: 0; padding: 0; }
	
.fc-state-default { /* non-theme */
	border: 1px solid;
}

.fc-state-default.fc-corner-left { /* non-theme */
	border-top-left-radius: 4px;
	border-bottom-left-radius: 4px;
}

.fc-state-default.fc-corner-right { /* non-theme */
	border-top-right-radius: 4px;
	border-bottom-right-radius: 4px;
}

/* icons in buttons */

.fc button .fc-icon { /* non-theme */
	position: relative;
	top: .05em; /* seems to be a good adjustment across browsers */
	margin: 0 .1em;
}
	
/*
  button states
  borrowed from twitter bootstrap (http://twitter.github.com/bootstrap/)
*/

.fc-state-default {
	background-color: #f5f5f5;
	background-image: -moz-linear-gradient(top, #ffffff, #e6e6e6);
	background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), to(#e6e6e6));
	background-image: -webkit-linear-gradient(top, #ffffff, #e6e6e6);
	background-image: -o-linear-gradient(top, #ffffff, #e6e6e6);
	background-image: linear-gradient(to bottom, #ffffff, #e6e6e6);
	background-repeat: repeat-x;
	border-color: #e6e6e6 #e6e6e6 #bfbfbf;
	border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
	color: #333;
	text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
	box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
}

.fc-state-hover,
.fc-state-down,
.fc-state-active,
.fc-state-disabled {
	color: #333333;
	background-color: #e6e6e6;
}

.fc-state-hover {
	color: #333333;
	text-decoration: none;
	background-position: 0 -15px;
	-webkit-transition: background-position 0.1s linear;
	   -moz-transition: background-position 0.1s linear;
	     -o-transition: background-position 0.1s linear;
	        transition: background-position 0.1s linear;
}

.fc-state-down,
.fc-state-active {
	background-color: #cccccc;
	background-image: none;
	box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
}

.fc-state-disabled {
	cursor: default;
	background-image: none;
	opacity: 0.65;
	filter: alpha(opacity=65);
	box-shadow: none;
}


/* Buttons Groups
--------------------------------------------------------------------------------------------------*/

.fc-button-group {
	display: inline-block;
}

/*
every button that is not first in a button group should scootch over one pixel and cover the
previous button's border...
*/

.fc .fc-button-group > * { /* extra precedence b/c buttons have margin set to zero */
	float: left;
	margin: 0 0 0 -1px;
}

.fc .fc-button-group > :first-child { /* same */
	margin-left: 0;
}


/* Popover
--------------------------------------------------------------------------------------------------*/

.fc-popover {
	position: absolute;
	box-shadow: 0 2px 6px rgba(0,0,0,.15);
}

.fc-popover .fc-header {
	padding: 2px 4px;
}

.fc-popover .fc-header .fc-title {
	margin: 0 2px;
}

.fc-popover .fc-header .fc-close {
	cursor: pointer;
}

.fc-ltr .fc-popover .fc-header .fc-title,
.fc-rtl .fc-popover .fc-header .fc-close {
	float: left;
}

.fc-rtl .fc-popover .fc-header .fc-title,
.fc-ltr .fc-popover .fc-header .fc-close {
	float: right;
}

/* unthemed */

.fc-unthemed .fc-popover {
	border-width: 1px;
	border-style: solid;
}

.fc-unthemed .fc-popover .fc-header .fc-close {
	font-size: 25px;
	margin-top: 4px;
}

/* jqui themed */

.fc-popover > .ui-widget-header + .ui-widget-content {
	border-top: 0; /* where they meet, let the header have the border */
}


/* Misc Reusable Components
--------------------------------------------------------------------------------------------------*/

.fc hr {
	height: 0;
	margin: 0;
	padding: 0 0 2px; /* height is unreliable across browsers, so use padding */
	border-style: solid;
	border-width: 1px 0;
}

.fc-clear {
	clear: both;
}

.fc-bg,
.fc-highlight-skeleton,
.fc-helper-skeleton {
	/* these element should always cling to top-left/right corners */
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
}

.fc-bg {
	bottom: 0; /* strech bg to bottom edge */
}

.fc-bg table {
	height: 100%; /* strech bg to bottom edge */
}


/* Tables
--------------------------------------------------------------------------------------------------*/

.fc table {
	width: 100%;
	table-layout: fixed;
	border-collapse: collapse;
	border-spacing: 0;
	font-size: 1em; /* normalize cross-browser */
}

.fc th {
	text-align: center;
}

.fc th,
.fc td {
	border-style: solid;
	border-width: 1px;
	padding: 0;
	vertical-align: top;
}

.fc td.fc-today {
	border-style: double; /* overcome neighboring borders */
}


/* Fake Table Rows
--------------------------------------------------------------------------------------------------*/

.fc .fc-row { /* extra precedence to overcome themes w/ .ui-widget-content forcing a 1px border */
	/* no visible border by default. but make available if need be (scrollbar width compensation) */
	border-style: solid;
	border-width: 0;
}

.fc-row table {
	/* don't put left/right border on anything within a fake row.
	   the outer tbody will worry about this */
	border-left: 0 hidden transparent;
	border-right: 0 hidden transparent;

	/* no bottom borders on rows */
	border-bottom: 0 hidden transparent; 
}

.fc-row:first-child table {
	border-top: 0 hidden transparent; /* no top border on first row */
}


/* Day Row (used within the header and the DayGrid)
--------------------------------------------------------------------------------------------------*/

.fc-row {
	position: relative;
}

.fc-row .fc-bg {
	z-index: 1;
}

/* highlighting cells */

.fc-row .fc-highlight-skeleton {
	z-index: 2;
	bottom: 0; /* stretch skeleton to bottom of row */
}

.fc-row .fc-highlight-skeleton table {
	height: 100%; /* stretch skeleton to bottom of row */
}

.fc-row .fc-highlight-skeleton td {
	border-color: transparent;
}

/*
row content (which contains day/week numbers and events) as well as "helper" (which contains
temporary rendered events).
*/

.fc-row .fc-content-skeleton {
	position: relative;
	z-index: 3;
	padding-bottom: 2px; /* matches the space above the events */
}

.fc-row .fc-helper-skeleton {
	z-index: 4;
}

.fc-row .fc-content-skeleton td,
.fc-row .fc-helper-skeleton td {
	/* see-through to the background below */
	background: none; /* in case <td>s are globally styled */
	border-color: transparent;

	/* don't put a border between events and/or the day number */
	border-bottom: 0;
}

.fc-row .fc-content-skeleton tbody td, /* cells with events inside (so NOT the day number cell) */
.fc-row .fc-helper-skeleton tbody td {
	/* don't put a border between event cells */
	border-top: 0;
}


/* Scrolling Container
--------------------------------------------------------------------------------------------------*/

.fc-scroller { /* this class goes on elements for guaranteed vertical scrollbars */
	overflow-y: scroll;
	overflow-x: hidden;
}

.fc-scroller > * { /* we expect an immediate inner element */
	position: relative; /* re-scope all positions */
	width: 100%; /* hack to force re-sizing this inner element when scrollbars appear/disappear */
	overflow: hidden; /* don't let negative margins or absolute positioning create further scroll */
}


/* Global Event Styles
--------------------------------------------------------------------------------------------------*/

.fc-event {
	position: relative; /* for resize handle and other inner positioning */
	display: block; /* make the <a> tag block */
	font-size: .85em;
	line-height: 1.3;
	border-radius: 3px;
	border: 1px solid #3a87ad; /* default BORDER color */
	background-color: #3a87ad; /* default BACKGROUND color */
	font-weight: normal; /* undo jqui's ui-widget-header bold */
}

/* overpower some of bootstrap's and jqui's styles on <a> tags */
.fc-event,
.fc-event:hover,
.ui-widget .fc-event {
	color: #fff; /* default TEXT color */
	text-decoration: none; /* if <a> has an href */
}

.fc-event[href],
.fc-event.fc-draggable {
	cursor: pointer; /* give events with links and draggable events a hand mouse pointer */
}


/* DayGrid events
----------------------------------------------------------------------------------------------------
We use the full "fc-day-grid-event" class instead of using descendants because the event won't
be a descendant of the grid when it is being dragged.
*/

.fc-day-grid-event {
	margin: 1px 2px 0; /* spacing between events and edges */
	padding: 0 1px;
}

/* events that are continuing to/from another week. kill rounded corners and butt up against edge */

.fc-ltr .fc-day-grid-event.fc-not-start,
.fc-rtl .fc-day-grid-event.fc-not-end {
	margin-left: 0;
	border-left-width: 0;
	padding-left: 1px; /* replace the border with padding */
	border-top-left-radius: 0;
	border-bottom-left-radius: 0;
}

.fc-ltr .fc-day-grid-event.fc-not-end,
.fc-rtl .fc-day-grid-event.fc-not-start {
	margin-right: 0;
	border-right-width: 0;
	padding-right: 1px; /* replace the border with padding */
	border-top-right-radius: 0;
	border-bottom-right-radius: 0;
}

.fc-day-grid-event > .fc-content { /* force events to be one-line tall */
	white-space: nowrap;
	overflow: hidden;
}

.fc-day-grid-event .fc-time {
	font-weight: bold;
}

/* resize handle (outside of fc-content, so can go outside of bounds) */

.fc-day-grid-event .fc-resizer {
	position: absolute;
	top: 0;
	bottom: 0;
	width: 7px;
}

.fc-ltr .fc-day-grid-event .fc-resizer {
	right: -3px;
	cursor: e-resize;
}

.fc-rtl .fc-day-grid-event .fc-resizer {
	left: -3px;
	cursor: w-resize;
}


/* Event Limiting
--------------------------------------------------------------------------------------------------*/

/* "more" link that represents hidden events */

a.fc-more {
	margin: 1px 3px;
	font-size: .85em;
	cursor: pointer;
	text-decoration: none;
}

a.fc-more:hover {
	text-decoration: underline;
}

.fc-limited { /* rows and cells that are hidden because of a "more" link */
	display: none;
}

/* popover that appears when "more" link is clicked */

.fc-day-grid .fc-row {
	z-index: 1; /* make the "more" popover one higher than this */
}

.fc-more-popover {
	z-index: 2;
	width: 220px;
}

.fc-more-popover .fc-event-container {
	padding: 10px;
}

/* Toolbar
--------------------------------------------------------------------------------------------------*/

.fc-toolbar {
	text-align: center;
	margin-bottom: 1em;
}

.fc-toolbar .fc-left {
	float: left;
}

.fc-toolbar .fc-right {
	float: right;
}

.fc-toolbar .fc-center {
	display: inline-block;
}

/* the things within each left/right/center section */
.fc .fc-toolbar > * > * { /* extra precedence to override button border margins */
	float: left;
	margin-left: .75em;
}

/* the first thing within each left/center/right section */
.fc .fc-toolbar > * > :first-child { /* extra precedence to override button border margins */
	margin-left: 0;
}
	
/* title text */

.fc-toolbar h2 {
	margin: 0;
}

/* button layering (for border precedence) */

.fc-toolbar button {
	position: relative;
}

.fc-toolbar .fc-state-hover,
.fc-toolbar .ui-state-hover {
	z-index: 2;
}
	
.fc-toolbar .fc-state-down {
	z-index: 3;
}

.fc-toolbar .fc-state-active,
.fc-toolbar .ui-state-active {
	z-index: 4;
}

.fc-toolbar button:focus {
	z-index: 5;
}


/* View Structure
--------------------------------------------------------------------------------------------------*/

/* undo twitter bootstrap's box-sizing rules. normalizes positioning techniques */
/* don't do this for the toolbar because we'll want bootstrap to style those buttons as some pt */
.fc-view-container *,
.fc-view-container *:before,
.fc-view-container *:after {
	-webkit-box-sizing: content-box;
	   -moz-box-sizing: content-box;
	        box-sizing: content-box;
}

.fc-view, /* scope positioning and z-index's for everything within the view */
.fc-view > table { /* so dragged elements can be above the view's main element */
	position: relative;
	z-index: 1;
}

/* BasicView
--------------------------------------------------------------------------------------------------*/

/* day row structure */

.fc-basicWeek-view .fc-content-skeleton,
.fc-basicDay-view .fc-content-skeleton {
	/* we are sure there are no day numbers in these views, so... */
	padding-top: 1px; /* add a pixel to make sure there are 2px padding above events */
	padding-bottom: 1em; /* ensure a space at bottom of cell for user selecting/clicking */
}

.fc-basic-view tbody .fc-row {
	min-height: 4em; /* ensure that all rows are at least this tall */
}

/* a "rigid" row will take up a constant amount of height because content-skeleton is absolute */

.fc-row.fc-rigid {
	overflow: hidden;
}

.fc-row.fc-rigid .fc-content-skeleton {
	position: absolute;
	top: 0;
	left: 0;
	right: 0;
}

/* week and day number styling */

.fc-basic-view .fc-week-number,
.fc-basic-view .fc-day-number {
	padding: 0 2px;
}

.fc-basic-view td.fc-week-number span,
.fc-basic-view td.fc-day-number {
	padding-top: 2px;
	padding-bottom: 2px;
}

.fc-basic-view .fc-week-number {
	text-align: center;
}

.fc-basic-view .fc-week-number span {
	/* work around the way we do column resizing and ensure a minimum width */
	display: inline-block;
	min-width: 1.25em;
}

.fc-ltr .fc-basic-view .fc-day-number {
	text-align: right;
}

.fc-rtl .fc-basic-view .fc-day-number {
	text-align: left;
}

.fc-day-number.fc-other-month {
	opacity: 0.3;
	filter: alpha(opacity=30); /* for IE */
	/* opacity with small font can sometimes look too faded
	   might want to set the 'color' property instead
	   making day-numbers bold also fixes the problem */
}

/* AgendaView all-day area
--------------------------------------------------------------------------------------------------*/

.fc-agenda-view .fc-day-grid {
	position: relative;
	z-index: 2; /* so the "more.." popover will be over the time grid */
}

.fc-agenda-view .fc-day-grid .fc-row {
	min-height: 3em; /* all-day section will never get shorter than this */
}

.fc-agenda-view .fc-day-grid .fc-row .fc-content-skeleton {
	padding-top: 1px; /* add a pixel to make sure there are 2px padding above events */
	padding-bottom: 1em; /* give space underneath events for clicking/selecting days */
}


/* TimeGrid axis running down the side (for both the all-day area and the slot area)
--------------------------------------------------------------------------------------------------*/

.fc .fc-axis { /* .fc to overcome default cell styles */
	vertical-align: middle;
	padding: 0 4px;
	white-space: nowrap;
}

.fc-ltr .fc-axis {
	text-align: right;
}

.fc-rtl .fc-axis {
	text-align: left;
}

.ui-widget td.fc-axis {
	font-weight: normal; /* overcome jqui theme making it bold */
}


/* TimeGrid Structure
--------------------------------------------------------------------------------------------------*/

.fc-time-grid-container, /* so scroll container's z-index is below all-day */
.fc-time-grid { /* so slats/bg/content/etc positions get scoped within here */
	position: relative;
	z-index: 1;
}

.fc-time-grid {
	min-height: 100%; /* so if height setting is 'auto', .fc-bg stretches to fill height */
}

.fc-time-grid table { /* don't put outer borders on slats/bg/content/etc */
	border: 0 hidden transparent;
}

.fc-time-grid > .fc-bg {
	z-index: 1;
}

.fc-time-grid .fc-slats,
.fc-time-grid > hr { /* the <hr> AgendaView injects when grid is shorter than scroller */
	position: relative;
	z-index: 2;
}

.fc-time-grid .fc-highlight-skeleton {
	z-index: 3;
}

.fc-time-grid .fc-content-skeleton {
	position: absolute;
	z-index: 4;
	top: 0;
	left: 0;
	right: 0;
}

.fc-time-grid > .fc-helper-skeleton {
	z-index: 5;
}


/* TimeGrid Slats (lines that run horizontally)
--------------------------------------------------------------------------------------------------*/

.fc-slats td {
	height: 1.5em;
	border-bottom: 0; /* each cell is responsible for its top border */
}

.fc-slats .fc-minor td {
	border-top-style: dotted;
}

.fc-slats .ui-widget-content { /* for jqui theme */
	background: none; /* see through to fc-bg */
}


/* TimeGrid Highlighting Slots
--------------------------------------------------------------------------------------------------*/

.fc-time-grid .fc-highlight-container { /* a div within a cell within the fc-highlight-skeleton */
	position: relative; /* scopes the left/right of the fc-highlight to be in the column */
}

.fc-time-grid .fc-highlight {
	position: absolute;
	left: 0;
	right: 0;
	/* top and bottom will be in by JS */
}


/* TimeGrid Event Containment
--------------------------------------------------------------------------------------------------*/

.fc-time-grid .fc-event-container { /* a div within a cell within the fc-content-skeleton */
	position: relative;
}

.fc-ltr .fc-time-grid .fc-event-container { /* space on the sides of events for LTR (default) */
	margin: 0 2.5% 0 2px;
}

.fc-rtl .fc-time-grid .fc-event-container { /* space on the sides of events for RTL */
	margin: 0 2px 0 2.5%;
}

.fc-time-grid .fc-event {
	position: absolute;
	z-index: 1; /* scope inner z-index's */
}


/* TimeGrid Event Styling
----------------------------------------------------------------------------------------------------
We use the full "fc-time-grid-event" class instead of using descendants because the event won't
be a descendant of the grid when it is being dragged.
*/

.fc-time-grid-event.fc-not-start { /* events that are continuing from another day */
	/* replace space made by the top border with padding */
	border-top-width: 0;
	padding-top: 1px;

	/* remove top rounded corners */
	border-top-left-radius: 0;
	border-top-right-radius: 0;
}

.fc-time-grid-event.fc-not-end {
	/* replace space made by the top border with padding */
	border-bottom-width: 0;
	padding-bottom: 1px;

	/* remove bottom rounded corners */
	border-bottom-left-radius: 0;
	border-bottom-right-radius: 0;
}

.fc-time-grid-event {
	overflow: hidden; /* don't let the bg flow over rounded corners */
}

.fc-time-grid-event > .fc-content { /* contains the time and title, but no bg and resizer */
	position: relative;
	z-index: 2; /* above the bg */
}

.fc-time-grid-event .fc-time,
.fc-time-grid-event .fc-title {
	padding: 0 1px;
}

.fc-time-grid-event .fc-time {
	font-size: .85em;
	white-space: nowrap;
}

.fc-time-grid-event .fc-bg {
	z-index: 1;
	background: #fff;
	opacity: .25;
	filter: alpha(opacity=25); /* for IE */
}

/* short mode, where time and title are on the same line */

.fc-time-grid-event.fc-short .fc-content {
	/* don't wrap to second line (now that contents will be inline) */
	white-space: nowrap;
}

.fc-time-grid-event.fc-short .fc-time,
.fc-time-grid-event.fc-short .fc-title {
	/* put the time and title on the same line */
	display: inline-block;
	vertical-align: top;
}

.fc-time-grid-event.fc-short .fc-time span {
	display: none; /* don't display the full time text... */
}

.fc-time-grid-event.fc-short .fc-time:before {
	content: attr(data-start); /* ...instead, display only the start time */
}

.fc-time-grid-event.fc-short .fc-time:after {
	content: "\000A0-\000A0"; /* seperate with a dash, wrapped in nbsp's */
}

.fc-time-grid-event.fc-short .fc-title {
	font-size: .85em; /* make the title text the same size as the time */
	padding: 0; /* undo padding from above */
}

/* resizer */

.fc-time-grid-event .fc-resizer {
	position: absolute;
	z-index: 3; /* above content */
	left: 0;
	right: 0;
	bottom: 0;
	height: 8px;
	overflow: hidden;
	line-height: 8px;
	font-size: 11px;
	font-family: monospace;
	text-align: center;
	cursor: s-resize;
}

.fc-time-grid-event .fc-resizer:after {
	content: "=";
}
/*!
 * FullCalendar v2.1.1
 * Docs & License: http://arshaw.com/fullcalendar/
 * (c) 2013 Adam Shaw
 */

(function(factory) {
	if (typeof define === 'function' && define.amd) {
		define([ 'jquery', 'moment' ], factory);
	}
	else {
		factory(jQuery, moment);
	}
})(function($, moment) {

;;

var defaults = {

	lang: 'en',

	defaultTimedEventDuration: '02:00:00',
	defaultAllDayEventDuration: { days: 1 },
	forceEventDuration: false,
	nextDayThreshold: '09:00:00', // 9am

	// display
	defaultView: 'month',
	aspectRatio: 1.35,
	header: {
		left: 'title',
		center: '',
		right: 'today prev,next'
	},
	weekends: true,
	weekNumbers: false,

	weekNumberTitle: 'W',
	weekNumberCalculation: 'local',
	
	//editable: false,
	
	// event ajax
	lazyFetching: true,
	startParam: 'start',
	endParam: 'end',
	timezoneParam: 'timezone',

	timezone: false,

	//allDayDefault: undefined,
	
	// time formats
	titleFormat: {
		month: 'MMMM YYYY', // like "September 1986". each language will override this
		week: 'll', // like "Sep 4 1986"
		day: 'LL' // like "September 4 1986"
	},
	columnFormat: {
		month: 'ddd', // like "Sat"
		week: generateWeekColumnFormat,
		day: 'dddd' // like "Saturday"
	},
	timeFormat: { // for event elements
		'default': generateShortTimeFormat
	},

	displayEventEnd: {
		month: false,
		basicWeek: false,
		'default': true
	},
	
	// locale
	isRTL: false,
	defaultButtonText: {
		prev: "prev",
		next: "next",
		prevYear: "prev year",
		nextYear: "next year",
		today: 'today',
		month: 'month',
		week: 'week',
		day: 'day'
	},

	buttonIcons: {
		prev: 'left-single-arrow',
		next: 'right-single-arrow',
		prevYear: 'left-double-arrow',
		nextYear: 'right-double-arrow'
	},
	
	// jquery-ui theming
	theme: false,
	themeButtonIcons: {
		prev: 'circle-triangle-w',
		next: 'circle-triangle-e',
		prevYear: 'seek-prev',
		nextYear: 'seek-next'
	},

	dragOpacity: .75,
	dragRevertDuration: 500,
	dragScroll: true,
	
	//selectable: false,
	unselectAuto: true,
	
	dropAccept: '*',

	eventLimit: false,
	eventLimitText: 'more',
	eventLimitClick: 'popover',
	dayPopoverFormat: 'LL',
	
	handleWindowResize: true,
	windowResizeDelay: 200 // milliseconds before a rerender happens
	
};


function generateShortTimeFormat(options, langData) {
	return langData.longDateFormat('LT')
		.replace(':mm', '(:mm)')
		.replace(/(\Wmm)$/, '($1)') // like above, but for foreign langs
		.replace(/\s*a$/i, 't'); // convert to AM/PM/am/pm to lowercase one-letter. remove any spaces beforehand
}


function generateWeekColumnFormat(options, langData) {
	var format = langData.longDateFormat('L'); // for the format like "MM/DD/YYYY"
	format = format.replace(/^Y+[^\w\s]*|[^\w\s]*Y+$/g, ''); // strip the year off the edge, as well as other misc non-whitespace chars
	if (options.isRTL) {
		format += ' ddd'; // for RTL, add day-of-week to end
	}
	else {
		format = 'ddd ' + format; // for LTR, add day-of-week to beginning
	}
	return format;
}


var langOptionHash = {
	en: {
		columnFormat: {
			week: 'ddd M/D' // override for english. different from the generated default, which is MM/DD
		},
		dayPopoverFormat: 'dddd, MMMM D'
	}
};


// right-to-left defaults
var rtlDefaults = {
	header: {
		left: 'next,prev today',
		center: '',
		right: 'title'
	},
	buttonIcons: {
		prev: 'right-single-arrow',
		next: 'left-single-arrow',
		prevYear: 'right-double-arrow',
		nextYear: 'left-double-arrow'
	},
	themeButtonIcons: {
		prev: 'circle-triangle-e',
		next: 'circle-triangle-w',
		nextYear: 'seek-prev',
		prevYear: 'seek-next'
	}
};

;;

var fc = $.fullCalendar = { version: "2.1.1" };
var fcViews = fc.views = {};


$.fn.fullCalendar = function(options) {
	var args = Array.prototype.slice.call(arguments, 1); // for a possible method call
	var res = this; // what this function will return (this jQuery object by default)

	this.each(function(i, _element) { // loop each DOM element involved
		var element = $(_element);
		var calendar = element.data('fullCalendar'); // get the existing calendar object (if any)
		var singleRes; // the returned value of this single method call

		// a method call
		if (typeof options === 'string') {
			if (calendar && $.isFunction(calendar[options])) {
				singleRes = calendar[options].apply(calendar, args);
				if (!i) {
					res = singleRes; // record the first method call result
				}
				if (options === 'destroy') { // for the destroy method, must remove Calendar object data
					element.removeData('fullCalendar');
				}
			}
		}
		// a new calendar initialization
		else if (!calendar) { // don't initialize twice
			calendar = new Calendar(element, options);
			element.data('fullCalendar', calendar);
			calendar.render();
		}
	});
	
	return res;
};


// function for adding/overriding defaults
function setDefaults(d) {
	mergeOptions(defaults, d);
}


// Recursively combines option hash-objects.
// Better than `$.extend(true, ...)` because arrays are not traversed/copied.
//
// called like:
//     mergeOptions(target, obj1, obj2, ...)
//
function mergeOptions(target) {

	function mergeIntoTarget(name, value) {
		if ($.isPlainObject(value) && $.isPlainObject(target[name]) && !isForcedAtomicOption(name)) {
			// merge into a new object to avoid destruction
			target[name] = mergeOptions({}, target[name], value); // combine. `value` object takes precedence
		}
		else if (value !== undefined) { // only use values that are set and not undefined
			target[name] = value;
		}
	}

	for (var i=1; i<arguments.length; i++) {
		$.each(arguments[i], mergeIntoTarget);
	}

	return target;
}


// overcome sucky view-option-hash and option-merging behavior messing with options it shouldn't
function isForcedAtomicOption(name) {
	// Any option that ends in "Time" or "Duration" is probably a Duration,
	// and these will commonly be specified as plain objects, which we don't want to mess up.
	return /(Time|Duration)$/.test(name);
}
// FIX: find a different solution for view-option-hashes and have a whitelist
// for options that can be recursively merged.

;;

//var langOptionHash = {}; // initialized in defaults.js
fc.langs = langOptionHash; // expose


// Initialize jQuery UI Datepicker translations while using some of the translations
// for our own purposes. Will set this as the default language for datepicker.
// Called from a translation file.
fc.datepickerLang = function(langCode, datepickerLangCode, options) {
	var langOptions = langOptionHash[langCode];

	// initialize FullCalendar's lang hash for this language
	if (!langOptions) {
		langOptions = langOptionHash[langCode] = {};
	}

	// merge certain Datepicker options into FullCalendar's options
	mergeOptions(langOptions, {
		isRTL: options.isRTL,
		weekNumberTitle: options.weekHeader,
		titleFormat: {
			month: options.showMonthAfterYear ?
				'YYYY[' + options.yearSuffix + '] MMMM' :
				'MMMM YYYY[' + options.yearSuffix + ']'
		},
		defaultButtonText: {
			// the translations sometimes wrongly contain HTML entities
			prev: stripHtmlEntities(options.prevText),
			next: stripHtmlEntities(options.nextText),
			today: stripHtmlEntities(options.currentText)
		}
	});

	// is jQuery UI Datepicker is on the page?
	if ($.datepicker) {

		// Register the language data.
		// FullCalendar and MomentJS use language codes like "pt-br" but Datepicker
		// does it like "pt-BR" or if it doesn't have the language, maybe just "pt".
		// Make an alias so the language can be referenced either way.
		$.datepicker.regional[datepickerLangCode] =
			$.datepicker.regional[langCode] = // alias
				options;

		// Alias 'en' to the default language data. Do this every time.
		$.datepicker.regional.en = $.datepicker.regional[''];

		// Set as Datepicker's global defaults.
		$.datepicker.setDefaults(options);
	}
};


// Sets FullCalendar-specific translations. Also sets the language as the global default.
// Called from a translation file.
fc.lang = function(langCode, options) {
	var langOptions;

	if (options) {
		langOptions = langOptionHash[langCode];

		// initialize the hash for this language
		if (!langOptions) {
			langOptions = langOptionHash[langCode] = {};
		}

		mergeOptions(langOptions, options || {});
	}

	// set it as the default language for FullCalendar
	defaults.lang = langCode;
};
;;

 
function Calendar(element, instanceOptions) {
	var t = this;



	// Build options object
	// -----------------------------------------------------------------------------------
	// Precedence (lowest to highest): defaults, rtlDefaults, langOptions, instanceOptions

	instanceOptions = instanceOptions || {};

	var options = mergeOptions({}, defaults, instanceOptions);
	var langOptions;

	// determine language options
	if (options.lang in langOptionHash) {
		langOptions = langOptionHash[options.lang];
	}
	else {
		langOptions = langOptionHash[defaults.lang];
	}

	if (langOptions) { // if language options exist, rebuild...
		options = mergeOptions({}, defaults, langOptions, instanceOptions);
	}

	if (options.isRTL) { // is isRTL, rebuild...
		options = mergeOptions({}, defaults, rtlDefaults, langOptions || {}, instanceOptions);
	}


	
	// Exports
	// -----------------------------------------------------------------------------------

	t.options = options;
	t.render = render;
	t.destroy = destroy;
	t.refetchEvents = refetchEvents;
	t.reportEvents = reportEvents;
	t.reportEventChange = reportEventChange;
	t.rerenderEvents = renderEvents; // `renderEvents` serves as a rerender. an API method
	t.changeView = changeView;
	t.select = select;
	t.unselect = unselect;
	t.prev = prev;
	t.next = next;
	t.prevYear = prevYear;
	t.nextYear = nextYear;
	t.today = today;
	t.gotoDate = gotoDate;
	t.incrementDate = incrementDate;
	t.zoomTo = zoomTo;
	t.getDate = getDate;
	t.getCalendar = getCalendar;
	t.getView = getView;
	t.option = option;
	t.trigger = trigger;



	// Language-data Internals
	// -----------------------------------------------------------------------------------
	// Apply overrides to the current language's data


	// Returns moment's internal locale data. If doesn't exist, returns English.
	// Works with moment-pre-2.8
	function getLocaleData(langCode) {
		var f = moment.localeData || moment.langData;
		return f.call(moment, langCode) ||
			f.call(moment, 'en'); // the newer localData could return null, so fall back to en
	}


	var localeData = createObject(getLocaleData(options.lang)); // make a cheap copy

	if (options.monthNames) {
		localeData._months = options.monthNames;
	}
	if (options.monthNamesShort) {
		localeData._monthsShort = options.monthNamesShort;
	}
	if (options.dayNames) {
		localeData._weekdays = options.dayNames;
	}
	if (options.dayNamesShort) {
		localeData._weekdaysShort = options.dayNamesShort;
	}
	if (options.firstDay != null) {
		var _week = createObject(localeData._week); // _week: { dow: # }
		_week.dow = options.firstDay;
		localeData._week = _week;
	}



	// Calendar-specific Date Utilities
	// -----------------------------------------------------------------------------------


	t.defaultAllDayEventDuration = moment.duration(options.defaultAllDayEventDuration);
	t.defaultTimedEventDuration = moment.duration(options.defaultTimedEventDuration);


	// Builds a moment using the settings of the current calendar: timezone and language.
	// Accepts anything the vanilla moment() constructor accepts.
	t.moment = function() {
		var mom;

		if (options.timezone === 'local') {
			mom = fc.moment.apply(null, arguments);

			// Force the moment to be local, because fc.moment doesn't guarantee it.
			if (mom.hasTime()) { // don't give ambiguously-timed moments a local zone
				mom.local();
			}
		}
		else if (options.timezone === 'UTC') {
			mom = fc.moment.utc.apply(null, arguments); // process as UTC
		}
		else {
			mom = fc.moment.parseZone.apply(null, arguments); // let the input decide the zone
		}

		if ('_locale' in mom) { // moment 2.8 and above
			mom._locale = localeData;
		}
		else { // pre-moment-2.8
			mom._lang = localeData;
		}

		return mom;
	};


	// Returns a boolean about whether or not the calendar knows how to calculate
	// the timezone offset of arbitrary dates in the current timezone.
	t.getIsAmbigTimezone = function() {
		return options.timezone !== 'local' && options.timezone !== 'UTC';
	};


	// Returns a copy of the given date in the current timezone of it is ambiguously zoned.
	// This will also give the date an unambiguous time.
	t.rezoneDate = function(date) {
		return t.moment(date.toArray());
	};


	// Returns a moment for the current date, as defined by the client's computer,
	// or overridden by the `now` option.
	t.getNow = function() {
		var now = options.now;
		if (typeof now === 'function') {
			now = now();
		}
		return t.moment(now);
	};


	// Calculates the week number for a moment according to the calendar's
	// `weekNumberCalculation` setting.
	t.calculateWeekNumber = function(mom) {
		var calc = options.weekNumberCalculation;

		if (typeof calc === 'function') {
			return calc(mom);
		}
		else if (calc === 'local') {
			return mom.week();
		}
		else if (calc.toUpperCase() === 'ISO') {
			return mom.isoWeek();
		}
	};


	// Get an event's normalized end date. If not present, calculate it from the defaults.
	t.getEventEnd = function(event) {
		if (event.end) {
			return event.end.clone();
		}
		else {
			return t.getDefaultEventEnd(event.allDay, event.start);
		}
	};


	// Given an event's allDay status and start date, return swhat its fallback end date should be.
	t.getDefaultEventEnd = function(allDay, start) { // TODO: rename to computeDefaultEventEnd
		var end = start.clone();

		if (allDay) {
			end.stripTime().add(t.defaultAllDayEventDuration);
		}
		else {
			end.add(t.defaultTimedEventDuration);
		}

		if (t.getIsAmbigTimezone()) {
			end.stripZone(); // we don't know what the tzo should be
		}

		return end;
	};



	// Date-formatting Utilities
	// -----------------------------------------------------------------------------------


	// Like the vanilla formatRange, but with calendar-specific settings applied.
	t.formatRange = function(m1, m2, formatStr) {

		// a function that returns a formatStr // TODO: in future, precompute this
		if (typeof formatStr === 'function') {
			formatStr = formatStr.call(t, options, localeData);
		}

		return formatRange(m1, m2, formatStr, null, options.isRTL);
	};


	// Like the vanilla formatDate, but with calendar-specific settings applied.
	t.formatDate = function(mom, formatStr) {

		// a function that returns a formatStr // TODO: in future, precompute this
		if (typeof formatStr === 'function') {
			formatStr = formatStr.call(t, options, localeData);
		}

		return formatDate(mom, formatStr);
	};


	
	// Imports
	// -----------------------------------------------------------------------------------


	EventManager.call(t, options);
	var isFetchNeeded = t.isFetchNeeded;
	var fetchEvents = t.fetchEvents;



	// Locals
	// -----------------------------------------------------------------------------------


	var _element = element[0];
	var header;
	var headerElement;
	var content;
	var tm; // for making theme classes
	var currentView;
	var suggestedViewHeight;
	var windowResizeProxy; // wraps the windowResize function
	var ignoreWindowResize = 0;
	var date;
	var events = [];
	
	
	
	// Main Rendering
	// -----------------------------------------------------------------------------------


	if (options.defaultDate != null) {
		date = t.moment(options.defaultDate);
	}
	else {
		date = t.getNow();
	}
	
	
	function render(inc) {
		if (!content) {
			initialRender();
		}
		else if (elementVisible()) {
			// mainly for the public API
			calcSize();
			renderView(inc);
		}
	}
	
	
	function initialRender() {
		tm = options.theme ? 'ui' : 'fc';
		element.addClass('fc');

		if (options.isRTL) {
			element.addClass('fc-rtl');
		}
		else {
			element.addClass('fc-ltr');
		}

		if (options.theme) {
			element.addClass('ui-widget');
		}
		else {
			element.addClass('fc-unthemed');
		}

		content = $("<div class='fc-view-container'/>").prependTo(element);

		header = new Header(t, options);
		headerElement = header.render();
		if (headerElement) {
			element.prepend(headerElement);
		}

		changeView(options.defaultView);

		if (options.handleWindowResize) {
			windowResizeProxy = debounce(windowResize, options.windowResizeDelay); // prevents rapid calls
			$(window).resize(windowResizeProxy);
		}
	}
	
	
	function destroy() {

		if (currentView) {
			currentView.destroy();
		}

		header.destroy();
		content.remove();
		element.removeClass('fc fc-ltr fc-rtl fc-unthemed ui-widget');

		$(window).unbind('resize', windowResizeProxy);
	}
	
	
	function elementVisible() {
		return element.is(':visible');
	}
	
	

	// View Rendering
	// -----------------------------------------------------------------------------------


	function changeView(viewName) {
		renderView(0, viewName);
	}


	// Renders a view because of a date change, view-type change, or for the first time
	function renderView(delta, viewName) {
		ignoreWindowResize++;

		// if viewName is changing, destroy the old view
		if (currentView && viewName && currentView.name !== viewName) {
			header.deactivateButton(currentView.name);
			freezeContentHeight(); // prevent a scroll jump when view element is removed
			if (currentView.start) { // rendered before?
				currentView.destroy();
			}
			currentView.el.remove();
			currentView = null;
		}

		// if viewName changed, or the view was never created, create a fresh view
		if (!currentView && viewName) {
			currentView = new fcViews[viewName](t);
			currentView.el =  $("<div class='fc-view fc-" + viewName + "-view' />").appendTo(content);
			header.activateButton(viewName);
		}

		if (currentView) {

			// let the view determine what the delta means
			if (delta) {
				date = currentView.incrementDate(date, delta);
			}

			// render or rerender the view
			if (
				!currentView.start || // never rendered before
				delta || // explicit date window change
				!date.isWithin(currentView.intervalStart, currentView.intervalEnd) // implicit date window change
			) {
				if (elementVisible()) {

					freezeContentHeight();
					if (currentView.start) { // rendered before?
						currentView.destroy();
					}
					currentView.render(date);
					unfreezeContentHeight();

					// need to do this after View::render, so dates are calculated
					updateTitle();
					updateTodayButton();

					getAndRenderEvents();
				}
			}
		}

		unfreezeContentHeight(); // undo any lone freezeContentHeight calls
		ignoreWindowResize--;
	}
	
	

	// Resizing
	// -----------------------------------------------------------------------------------


	t.getSuggestedViewHeight = function() {
		if (suggestedViewHeight === undefined) {
			calcSize();
		}
		return suggestedViewHeight;
	};


	t.isHeightAuto = function() {
		return options.contentHeight === 'auto' || options.height === 'auto';
	};
	
	
	function updateSize(shouldRecalc) {
		if (elementVisible()) {

			if (shouldRecalc) {
				_calcSize();
			}

			ignoreWindowResize++;
			currentView.updateSize(true); // isResize=true. will poll getSuggestedViewHeight() and isHeightAuto()
			ignoreWindowResize--;

			return true; // signal success
		}
	}


	function calcSize() {
		if (elementVisible()) {
			_calcSize();
		}
	}
	
	
	function _calcSize() { // assumes elementVisible
		if (typeof options.contentHeight === 'number') { // exists and not 'auto'
			suggestedViewHeight = options.contentHeight;
		}
		else if (typeof options.height === 'number') { // exists and not 'auto'
			suggestedViewHeight = options.height - (headerElement ? headerElement.outerHeight(true) : 0);
		}
		else {
			suggestedViewHeight = Math.round(content.width() / Math.max(options.aspectRatio, .5));
		}
	}
	
	
	function windowResize(ev) {
		if (
			!ignoreWindowResize &&
			ev.target === window && // so we don't process jqui "resize" events that have bubbled up
			currentView.start // view has already been rendered
		) {
			if (updateSize(true)) {
				currentView.trigger('windowResize', _element);
			}
		}
	}
	
	
	
	/* Event Fetching/Rendering
	-----------------------------------------------------------------------------*/
	// TODO: going forward, most of this stuff should be directly handled by the view


	function refetchEvents() { // can be called as an API method
		destroyEvents(); // so that events are cleared before user starts waiting for AJAX
		fetchAndRenderEvents();
	}


	function renderEvents() { // destroys old events if previously rendered
		if (elementVisible()) {
			freezeContentHeight();
			currentView.destroyEvents(); // no performance cost if never rendered
			currentView.renderEvents(events);
			unfreezeContentHeight();
		}
	}


	function destroyEvents() {
		freezeContentHeight();
		currentView.destroyEvents();
		unfreezeContentHeight();
	}
	

	function getAndRenderEvents() {
		if (!options.lazyFetching || isFetchNeeded(currentView.start, currentView.end)) {
			fetchAndRenderEvents();
		}
		else {
			renderEvents();
		}
	}


	function fetchAndRenderEvents() {
		fetchEvents(currentView.start, currentView.end);
			// ... will call reportEvents
			// ... which will call renderEvents
	}

	
	// called when event data arrives
	function reportEvents(_events) {
		events = _events;
		renderEvents();
	}


	// called when a single event's data has been changed
	function reportEventChange() {
		renderEvents();
	}



	/* Header Updating
	-----------------------------------------------------------------------------*/


	function updateTitle() {
		header.updateTitle(currentView.title);
	}


	function updateTodayButton() {
		var now = t.getNow();
		if (now.isWithin(currentView.intervalStart, currentView.intervalEnd)) {
			header.disableButton('today');
		}
		else {
			header.enableButton('today');
		}
	}
	


	/* Selection
	-----------------------------------------------------------------------------*/
	

	function select(start, end) {

		start = t.moment(start);
		if (end) {
			end = t.moment(end);
		}
		else if (start.hasTime()) {
			end = start.clone().add(t.defaultTimedEventDuration);
		}
		else {
			end = start.clone().add(t.defaultAllDayEventDuration);
		}

		currentView.select(start, end);
	}
	

	function unselect() { // safe to be called before renderView
		if (currentView) {
			currentView.unselect();
		}
	}
	
	
	
	/* Date
	-----------------------------------------------------------------------------*/
	
	
	function prev() {
		renderView(-1);
	}
	
	
	function next() {
		renderView(1);
	}
	
	
	function prevYear() {
		date.add(-1, 'years');
		renderView();
	}
	
	
	function nextYear() {
		date.add(1, 'years');
		renderView();
	}
	
	
	function today() {
		date = t.getNow();
		renderView();
	}
	
	
	function gotoDate(dateInput) {
		date = t.moment(dateInput);
		renderView();
	}
	
	
	function incrementDate(delta) {
		date.add(moment.duration(delta));
		renderView();
	}


	// Forces navigation to a view for the given date.
	// `viewName` can be a specific view name or a generic one like "week" or "day".
	function zoomTo(newDate, viewName) {
		var viewStr;
		var match;

		if (!viewName || fcViews[viewName] === undefined) { // a general view name, or "auto"
			viewName = viewName || 'day';
			viewStr = header.getViewsWithButtons().join(' '); // space-separated string of all the views in the header

			// try to match a general view name, like "week", against a specific one, like "agendaWeek"
			match = viewStr.match(new RegExp('\\w+' + capitaliseFirstLetter(viewName)));

			// fall back to the day view being used in the header
			if (!match) {
				match = viewStr.match(/\w+Day/);
			}

			viewName = match ? match[0] : 'agendaDay'; // fall back to agendaDay
		}

		date = newDate;
		changeView(viewName);
	}
	
	
	function getDate() {
		return date.clone();
	}



	/* Height "Freezing"
	-----------------------------------------------------------------------------*/


	function freezeContentHeight() {
		content.css({
			width: '100%',
			height: content.height(),
			overflow: 'hidden'
		});
	}


	function unfreezeContentHeight() {
		content.css({
			width: '',
			height: '',
			overflow: ''
		});
	}
	
	
	
	/* Misc
	-----------------------------------------------------------------------------*/
	

	function getCalendar() {
		return t;
	}

	
	function getView() {
		return currentView;
	}
	
	
	function option(name, value) {
		if (value === undefined) {
			return options[name];
		}
		if (name == 'height' || name == 'contentHeight' || name == 'aspectRatio') {
			options[name] = value;
			updateSize(true); // true = allow recalculation of height
		}
	}
	
	
	function trigger(name, thisObj) {
		if (options[name]) {
			return options[name].apply(
				thisObj || _element,
				Array.prototype.slice.call(arguments, 2)
			);
		}
	}

}

;;

/* Top toolbar area with buttons and title
----------------------------------------------------------------------------------------------------------------------*/
// TODO: rename all header-related things to "toolbar"

function Header(calendar, options) {
	var t = this;
	
	// exports
	t.render = render;
	t.destroy = destroy;
	t.updateTitle = updateTitle;
	t.activateButton = activateButton;
	t.deactivateButton = deactivateButton;
	t.disableButton = disableButton;
	t.enableButton = enableButton;
	t.getViewsWithButtons = getViewsWithButtons;
	
	// locals
	var el = $();
	var viewsWithButtons = [];
	var tm;


	function render() {
		var sections = options.header;

		tm = options.theme ? 'ui' : 'fc';

		if (sections) {
			el = $("<div class='fc-toolbar'/>")
				.append(renderSection('left'))
				.append(renderSection('right'))
				.append(renderSection('center'))
				.append('<div class="fc-clear"/>');

			return el;
		}
	}
	
	
	function destroy() {
		el.remove();
	}
	
	
	function renderSection(position) {
		var sectionEl = $('<div class="fc-' + position + '"/>');
		var buttonStr = options.header[position];

		if (buttonStr) {
			$.each(buttonStr.split(' '), function(i) {
				var groupChildren = $();
				var isOnlyButtons = true;
				var groupEl;

				$.each(this.split(','), function(j, buttonName) {
					var buttonClick;
					var themeIcon;
					var normalIcon;
					var defaultText;
					var customText;
					var innerHtml;
					var classes;
					var button;

					if (buttonName == 'title') {
						groupChildren = groupChildren.add($('<h2>&nbsp;</h2>')); // we always want it to take up height
						isOnlyButtons = false;
					}
					else {
						if (calendar[buttonName]) { // a calendar method
							buttonClick = function() {
								calendar[buttonName]();
							};
						}
						else if (fcViews[buttonName]) { // a view name
							buttonClick = function() {
								calendar.changeView(buttonName);
							};
							viewsWithButtons.push(buttonName);
						}
						if (buttonClick) {

							// smartProperty allows different text per view button (ex: "Agenda Week" vs "Basic Week")
							themeIcon = smartProperty(options.themeButtonIcons, buttonName);
							normalIcon = smartProperty(options.buttonIcons, buttonName);
							defaultText = smartProperty(options.defaultButtonText, buttonName);
							customText = smartProperty(options.buttonText, buttonName);

							if (customText) {
								innerHtml = htmlEscape(customText);
							}
							else if (themeIcon && options.theme) {
								innerHtml = "<span class='ui-icon ui-icon-" + themeIcon + "'></span>";
							}
							else if (normalIcon && !options.theme) {
								innerHtml = "<span class='fc-icon fc-icon-" + normalIcon + "'></span>";
							}
							else {
								innerHtml = htmlEscape(defaultText || buttonName);
							}

							classes = [
								'fc-' + buttonName + '-button',
								tm + '-button',
								tm + '-state-default'
							];

							button = $( // type="button" so that it doesn't submit a form
								'<button type="button" class="' + classes.join(' ') + '">' +
									innerHtml +
								'</button>'
								)
								.click(function() {
									// don't process clicks for disabled buttons
									if (!button.hasClass(tm + '-state-disabled')) {

										buttonClick();

										// after the click action, if the button becomes the "active" tab, or disabled,
										// it should never have a hover class, so remove it now.
										if (
											button.hasClass(tm + '-state-active') ||
											button.hasClass(tm + '-state-disabled')
										) {
											button.removeClass(tm + '-state-hover');
										}
									}
								})
								.mousedown(function() {
									// the *down* effect (mouse pressed in).
									// only on buttons that are not the "active" tab, or disabled
									button
										.not('.' + tm + '-state-active')
										.not('.' + tm + '-state-disabled')
										.addClass(tm + '-state-down');
								})
								.mouseup(function() {
									// undo the *down* effect
									button.removeClass(tm + '-state-down');
								})
								.hover(
									function() {
										// the *hover* effect.
										// only on buttons that are not the "active" tab, or disabled
										button
											.not('.' + tm + '-state-active')
											.not('.' + tm + '-state-disabled')
											.addClass(tm + '-state-hover');
									},
									function() {
										// undo the *hover* effect
										button
											.removeClass(tm + '-state-hover')
											.removeClass(tm + '-state-down'); // if mouseleave happens before mouseup
									}
								);

							groupChildren = groupChildren.add(button);
						}
					}
				});

				if (isOnlyButtons) {
					groupChildren
						.first().addClass(tm + '-corner-left').end()
						.last().addClass(tm + '-corner-right').end();
				}

				if (groupChildren.length > 1) {
					groupEl = $('<div/>');
					if (isOnlyButtons) {
						groupEl.addClass('fc-button-group');
					}
					groupEl.append(groupChildren);
					sectionEl.append(groupEl);
				}
				else {
					sectionEl.append(groupChildren); // 1 or 0 children
				}
			});
		}

		return sectionEl;
	}
	
	
	function updateTitle(text) {
		el.find('h2').text(text);
	}
	
	
	function activateButton(buttonName) {
		el.find('.fc-' + buttonName + '-button')
			.addClass(tm + '-state-active');
	}
	
	
	function deactivateButton(buttonName) {
		el.find('.fc-' + buttonName + '-button')
			.removeClass(tm + '-state-active');
	}
	
	
	function disableButton(buttonName) {
		el.find('.fc-' + buttonName + '-button')
			.attr('disabled', 'disabled')
			.addClass(tm + '-state-disabled');
	}
	
	
	function enableButton(buttonName) {
		el.find('.fc-' + buttonName + '-button')
			.removeAttr('disabled')
			.removeClass(tm + '-state-disabled');
	}


	function getViewsWithButtons() {
		return viewsWithButtons;
	}

}

;;

fc.sourceNormalizers = [];
fc.sourceFetchers = [];

var ajaxDefaults = {
	dataType: 'json',
	cache: false
};

var eventGUID = 1;


function EventManager(options) { // assumed to be a calendar
	var t = this;
	
	
	// exports
	t.isFetchNeeded = isFetchNeeded;
	t.fetchEvents = fetchEvents;
	t.addEventSource = addEventSource;
	t.removeEventSource = removeEventSource;
	t.updateEvent = updateEvent;
	t.renderEvent = renderEvent;
	t.removeEvents = removeEvents;
	t.clientEvents = clientEvents;
	t.mutateEvent = mutateEvent;
	
	
	// imports
	var trigger = t.trigger;
	var getView = t.getView;
	var reportEvents = t.reportEvents;
	var getEventEnd = t.getEventEnd;
	
	
	// locals
	var stickySource = { events: [] };
	var sources = [ stickySource ];
	var rangeStart, rangeEnd;
	var currentFetchID = 0;
	var pendingSourceCnt = 0;
	var loadingLevel = 0;
	var cache = [];


	$.each(
		(options.events ? [ options.events ] : []).concat(options.eventSources || []),
		function(i, sourceInput) {
			var source = buildEventSource(sourceInput);
			if (source) {
				sources.push(source);
			}
		}
	);
	
	
	
	/* Fetching
	-----------------------------------------------------------------------------*/
	
	
	function isFetchNeeded(start, end) {
		return !rangeStart || // nothing has been fetched yet?
			// or, a part of the new range is outside of the old range? (after normalizing)
			start.clone().stripZone() < rangeStart.clone().stripZone() ||
			end.clone().stripZone() > rangeEnd.clone().stripZone();
	}
	
	
	function fetchEvents(start, end) {
		rangeStart = start;
		rangeEnd = end;
		cache = [];
		var fetchID = ++currentFetchID;
		var len = sources.length;
		pendingSourceCnt = len;
		for (var i=0; i<len; i++) {
			fetchEventSource(sources[i], fetchID);
		}
	}
	
	
	function fetchEventSource(source, fetchID) {
		_fetchEventSource(source, function(events) {
			var isArraySource = $.isArray(source.events);
			var i;
			var event;

			if (fetchID == currentFetchID) {

				if (events) {
					for (i=0; i<events.length; i++) {
						event = events[i];

						// event array sources have already been convert to Event Objects
						if (!isArraySource) {
							event = buildEvent(event, source);
						}

						if (event) {
							cache.push(event);
						}
					}
				}

				pendingSourceCnt--;
				if (!pendingSourceCnt) {
					reportEvents(cache);
				}
			}
		});
	}
	
	
	function _fetchEventSource(source, callback) {
		var i;
		var fetchers = fc.sourceFetchers;
		var res;

		for (i=0; i<fetchers.length; i++) {
			res = fetchers[i].call(
				t, // this, the Calendar object
				source,
				rangeStart.clone(),
				rangeEnd.clone(),
				options.timezone,
				callback
			);

			if (res === true) {
				// the fetcher is in charge. made its own async request
				return;
			}
			else if (typeof res == 'object') {
				// the fetcher returned a new source. process it
				_fetchEventSource(res, callback);
				return;
			}
		}

		var events = source.events;
		if (events) {
			if ($.isFunction(events)) {
				pushLoading();
				events.call(
					t, // this, the Calendar object
					rangeStart.clone(),
					rangeEnd.clone(),
					options.timezone,
					function(events) {
						callback(events);
						popLoading();
					}
				);
			}
			else if ($.isArray(events)) {
				callback(events);
			}
			else {
				callback();
			}
		}else{
			var url = source.url;
			if (url) {
				var success = source.success;
				var error = source.error;
				var complete = source.complete;

				// retrieve any outbound GET/POST $.ajax data from the options
				var customData;
				if ($.isFunction(source.data)) {
					// supplied as a function that returns a key/value object
					customData = source.data();
				}
				else {
					// supplied as a straight key/value object
					customData = source.data;
				}

				// use a copy of the custom data so we can modify the parameters
				// and not affect the passed-in object.
				var data = $.extend({}, customData || {});

				var startParam = firstDefined(source.startParam, options.startParam);
				var endParam = firstDefined(source.endParam, options.endParam);
				var timezoneParam = firstDefined(source.timezoneParam, options.timezoneParam);

				if (startParam) {
					data[startParam] = rangeStart.format();
				}
				if (endParam) {
					data[endParam] = rangeEnd.format();
				}
				if (options.timezone && options.timezone != 'local') {
					data[timezoneParam] = options.timezone;
				}

				pushLoading();
				$.ajax($.extend({}, ajaxDefaults, source, {
					data: data,
					success: function(events) {
						events = events || [];
						var res = applyAll(success, this, arguments);
						if ($.isArray(res)) {
							events = res;
						}
						callback(events);
					},
					error: function() {
						applyAll(error, this, arguments);
						callback();
					},
					complete: function() {
						applyAll(complete, this, arguments);
						popLoading();
					}
				}));
			}else{
				callback();
			}
		}
	}
	
	
	
	/* Sources
	-----------------------------------------------------------------------------*/
	

	function addEventSource(sourceInput) {
		var source = buildEventSource(sourceInput);
		if (source) {
			sources.push(source);
			pendingSourceCnt++;
			fetchEventSource(source, currentFetchID); // will eventually call reportEvents
		}
	}


	function buildEventSource(sourceInput) { // will return undefined if invalid source
		var normalizers = fc.sourceNormalizers;
		var source;
		var i;

		if ($.isFunction(sourceInput) || $.isArray(sourceInput)) {
			source = { events: sourceInput };
		}
		else if (typeof sourceInput === 'string') {
			source = { url: sourceInput };
		}
		else if (typeof sourceInput === 'object') {
			source = $.extend({}, sourceInput); // shallow copy
		}

		if (source) {

			// TODO: repeat code, same code for event classNames
			if (source.className) {
				if (typeof source.className === 'string') {
					source.className = source.className.split(/\s+/);
				}
				// otherwise, assumed to be an array
			}
			else {
				source.className = [];
			}

			// for array sources, we convert to standard Event Objects up front
			if ($.isArray(source.events)) {
				source.origArray = source.events; // for removeEventSource
				source.events = $.map(source.events, function(eventInput) {
					return buildEvent(eventInput, source);
				});
			}

			for (i=0; i<normalizers.length; i++) {
				normalizers[i].call(t, source);
			}

			return source;
		}
	}


	function removeEventSource(source) {
		sources = $.grep(sources, function(src) {
			return !isSourcesEqual(src, source);
		});
		// remove all client events from that source
		cache = $.grep(cache, function(e) {
			return !isSourcesEqual(e.source, source);
		});
		reportEvents(cache);
	}


	function isSourcesEqual(source1, source2) {
		return source1 && source2 && getSourcePrimitive(source1) == getSourcePrimitive(source2);
	}


	function getSourcePrimitive(source) {
		return (
			(typeof source === 'object') ? // a normalized event source?
				(source.origArray || source.url || source.events) : // get the primitive
				null
		) ||
		source; // the given argument *is* the primitive
	}
	
	
	
	/* Manipulation
	-----------------------------------------------------------------------------*/


	function updateEvent(event) {

		event.start = t.moment(event.start);
		if (event.end) {
			event.end = t.moment(event.end);
		}

		mutateEvent(event);
		propagateMiscProperties(event);
		reportEvents(cache); // reports event modifications (so we can redraw)
	}


	var miscCopyableProps = [
		'title',
		'url',
		'allDay',
		'className',
		'editable',
		'color',
		'backgroundColor',
		'borderColor',
		'textColor'
	];

	function propagateMiscProperties(event) {
		var i;
		var cachedEvent;
		var j;
		var prop;

		for (i=0; i<cache.length; i++) {
			cachedEvent = cache[i];
			if (cachedEvent._id == event._id && cachedEvent !== event) {
				for (j=0; j<miscCopyableProps.length; j++) {
					prop = miscCopyableProps[j];
					if (event[prop] !== undefined) {
						cachedEvent[prop] = event[prop];
					}
				}
			}
		}
	}

	
	
	function renderEvent(eventData, stick) {
		var event = buildEvent(eventData);
		if (event) {
			if (!event.source) {
				if (stick) {
					stickySource.events.push(event);
					event.source = stickySource;
				}
				cache.push(event);
			}
			reportEvents(cache);
		}
	}
	
	
	function removeEvents(filter) {
		var eventID;
		var i;

		if (filter == null) { // null or undefined. remove all events
			filter = function() { return true; }; // will always match
		}
		else if (!$.isFunction(filter)) { // an event ID
			eventID = filter + '';
			filter = function(event) {
				return event._id == eventID;
			};
		}

		// Purge event(s) from our local cache
		cache = $.grep(cache, filter, true); // inverse=true

		// Remove events from array sources.
		// This works because they have been converted to official Event Objects up front.
		// (and as a result, event._id has been calculated).
		for (i=0; i<sources.length; i++) {
			if ($.isArray(sources[i].events)) {
				sources[i].events = $.grep(sources[i].events, filter, true);
			}
		}

		reportEvents(cache);
	}
	
	
	function clientEvents(filter) {
		if ($.isFunction(filter)) {
			return $.grep(cache, filter);
		}
		else if (filter != null) { // not null, not undefined. an event ID
			filter += '';
			return $.grep(cache, function(e) {
				return e._id == filter;
			});
		}
		return cache; // else, return all
	}
	
	
	
	/* Loading State
	-----------------------------------------------------------------------------*/
	
	
	function pushLoading() {
		if (!(loadingLevel++)) {
			trigger('loading', null, true, getView());
		}
	}
	
	
	function popLoading() {
		if (!(--loadingLevel)) {
			trigger('loading', null, false, getView());
		}
	}
	
	
	
	/* Event Normalization
	-----------------------------------------------------------------------------*/

	function buildEvent(data, source) { // source may be undefined!
		var out = {};
		var start;
		var end;
		var allDay;
		var allDayDefault;

		if (options.eventDataTransform) {
			data = options.eventDataTransform(data);
		}
		if (source && source.eventDataTransform) {
			data = source.eventDataTransform(data);
		}

		start = t.moment(data.start || data.date); // "date" is an alias for "start"
		if (!start.isValid()) {
			return;
		}

		end = null;
		if (data.end) {
			end = t.moment(data.end);
			if (!end.isValid()) {
				return;
			}
		}

		allDay = data.allDay;
		if (allDay === undefined) {
			allDayDefault = firstDefined(
				source ? source.allDayDefault : undefined,
				options.allDayDefault
			);
			if (allDayDefault !== undefined) {
				// use the default
				allDay = allDayDefault;
			}
			else {
				// all dates need to have ambig time for the event to be considered allDay
				allDay = !start.hasTime() && (!end || !end.hasTime());
			}
		}

		// normalize the date based on allDay
		if (allDay) {
			// neither date should have a time
			if (start.hasTime()) {
				start.stripTime();
			}
			if (end && end.hasTime()) {
				end.stripTime();
			}
		}
		else {
			// force a time/zone up the dates
			if (!start.hasTime()) {
				start = t.rezoneDate(start);
			}
			if (end && !end.hasTime()) {
				end = t.rezoneDate(end);
			}
		}

		// Copy all properties over to the resulting object.
		// The special-case properties will be copied over afterwards.
		$.extend(out, data);

		if (source) {
			out.source = source;
		}

		out._id = data._id || (data.id === undefined ? '_fc' + eventGUID++ : data.id + '');

		if (data.className) {
			if (typeof data.className == 'string') {
				out.className = data.className.split(/\s+/);
			}
			else { // assumed to be an array
				out.className = data.className;
			}
		}
		else {
			out.className = [];
		}

		out.allDay = allDay;
		out.start = start;
		out.end = end;

		if (options.forceEventDuration && !out.end) {
			out.end = getEventEnd(out);
		}

		backupEventDates(out);

		return out;
	}



	/* Event Modification Math
	-----------------------------------------------------------------------------------------*/


	// Modify the date(s) of an event and make this change propagate to all other events with
	// the same ID (related repeating events).
	//
	// If `newStart`/`newEnd` are not specified, the "new" dates are assumed to be `event.start` and `event.end`.
	// The "old" dates to be compare against are always `event._start` and `event._end` (set by EventManager).
	//
	// Returns an object with delta information and a function to undo all operations.
	//
	function mutateEvent(event, newStart, newEnd) {
		var oldAllDay = event._allDay;
		var oldStart = event._start;
		var oldEnd = event._end;
		var clearEnd = false;
		var newAllDay;
		var dateDelta;
		var durationDelta;
		var undoFunc;

		// if no new dates were passed in, compare against the event's existing dates
		if (!newStart && !newEnd) {
			newStart = event.start;
			newEnd = event.end;
		}

		// NOTE: throughout this function, the initial values of `newStart` and `newEnd` are
		// preserved. These values may be undefined.

		// detect new allDay
		if (event.allDay != oldAllDay) { // if value has changed, use it
			newAllDay = event.allDay;
		}
		else { // otherwise, see if any of the new dates are allDay
			newAllDay = !(newStart || newEnd).hasTime();
		}

		// normalize the new dates based on allDay
		if (newAllDay) {
			if (newStart) {
				newStart = newStart.clone().stripTime();
			}
			if (newEnd) {
				newEnd = newEnd.clone().stripTime();
			}
		}

		// compute dateDelta
		if (newStart) {
			if (newAllDay) {
				dateDelta = dayishDiff(newStart, oldStart.clone().stripTime()); // treat oldStart as allDay
			}
			else {
				dateDelta = dayishDiff(newStart, oldStart);
			}
		}

		if (newAllDay != oldAllDay) {
			// if allDay has changed, always throw away the end
			clearEnd = true;
		}
		else if (newEnd) {
			durationDelta = dayishDiff(
				// new duration
				newEnd || t.getDefaultEventEnd(newAllDay, newStart || oldStart),
				newStart || oldStart
			).subtract(dayishDiff(
				// subtract old duration
				oldEnd || t.getDefaultEventEnd(oldAllDay, oldStart),
				oldStart
			));
		}

		undoFunc = mutateEvents(
			clientEvents(event._id), // get events with this ID
			clearEnd,
			newAllDay,
			dateDelta,
			durationDelta
		);

		return {
			dateDelta: dateDelta,
			durationDelta: durationDelta,
			undo: undoFunc
		};
	}


	// Modifies an array of events in the following ways (operations are in order):
	// - clear the event's `end`
	// - convert the event to allDay
	// - add `dateDelta` to the start and end
	// - add `durationDelta` to the event's duration
	//
	// Returns a function that can be called to undo all the operations.
	//
	function mutateEvents(events, clearEnd, forceAllDay, dateDelta, durationDelta) {
		var isAmbigTimezone = t.getIsAmbigTimezone();
		var undoFunctions = [];

		$.each(events, function(i, event) {
			var oldAllDay = event._allDay;
			var oldStart = event._start;
			var oldEnd = event._end;
			var newAllDay = forceAllDay != null ? forceAllDay : oldAllDay;
			var newStart = oldStart.clone();
			var newEnd = (!clearEnd && oldEnd) ? oldEnd.clone() : null;

			// NOTE: this function is responsible for transforming `newStart` and `newEnd`,
			// which were initialized to the OLD values first. `newEnd` may be null.

			// normlize newStart/newEnd to be consistent with newAllDay
			if (newAllDay) {
				newStart.stripTime();
				if (newEnd) {
					newEnd.stripTime();
				}
			}
			else {
				if (!newStart.hasTime()) {
					newStart = t.rezoneDate(newStart);
				}
				if (newEnd && !newEnd.hasTime()) {
					newEnd = t.rezoneDate(newEnd);
				}
			}

			// ensure we have an end date if necessary
			if (!newEnd && (options.forceEventDuration || +durationDelta)) {
				newEnd = t.getDefaultEventEnd(newAllDay, newStart);
			}

			// translate the dates
			newStart.add(dateDelta);
			if (newEnd) {
				newEnd.add(dateDelta).add(durationDelta);
			}

			// if the dates have changed, and we know it is impossible to recompute the
			// timezone offsets, strip the zone.
			if (isAmbigTimezone) {
				if (+dateDelta || +durationDelta) {
					newStart.stripZone();
					if (newEnd) {
						newEnd.stripZone();
					}
				}
			}

			event.allDay = newAllDay;
			event.start = newStart;
			event.end = newEnd;
			backupEventDates(event);

			undoFunctions.push(function() {
				event.allDay = oldAllDay;
				event.start = oldStart;
				event.end = oldEnd;
				backupEventDates(event);
			});
		});

		return function() {
			for (var i=0; i<undoFunctions.length; i++) {
				undoFunctions[i]();
			}
		};
	}

}


// updates the "backup" properties, which are preserved in order to compute diffs later on.
function backupEventDates(event) {
	event._allDay = event.allDay;
	event._start = event.start.clone();
	event._end = event.end ? event.end.clone() : null;
}

;;

/* FullCalendar-specific DOM Utilities
----------------------------------------------------------------------------------------------------------------------*/


// Given the scrollbar widths of some other container, create borders/margins on rowEls in order to match the left
// and right space that was offset by the scrollbars. A 1-pixel border first, then margin beyond that.
function compensateScroll(rowEls, scrollbarWidths) {
	if (scrollbarWidths.left) {
		rowEls.css({
			'border-left-width': 1,
			'margin-left': scrollbarWidths.left - 1
		});
	}
	if (scrollbarWidths.right) {
		rowEls.css({
			'border-right-width': 1,
			'margin-right': scrollbarWidths.right - 1
		});
	}
}


// Undoes compensateScroll and restores all borders/margins
function uncompensateScroll(rowEls) {
	rowEls.css({
		'margin-left': '',
		'margin-right': '',
		'border-left-width': '',
		'border-right-width': ''
	});
}


// Given a total available height to fill, have `els` (essentially child rows) expand to accomodate.
// By default, all elements that are shorter than the recommended height are expanded uniformly, not considering
// any other els that are already too tall. if `shouldRedistribute` is on, it considers these tall rows and 
// reduces the available height.
function distributeHeight(els, availableHeight, shouldRedistribute) {

	// *FLOORING NOTE*: we floor in certain places because zoom can give inaccurate floating-point dimensions,
	// and it is better to be shorter than taller, to avoid creating unnecessary scrollbars.

	var minOffset1 = Math.floor(availableHeight / els.length); // for non-last element
	var minOffset2 = Math.floor(availableHeight - minOffset1 * (els.length - 1)); // for last element *FLOORING NOTE*
	var flexEls = []; // elements that are allowed to expand. array of DOM nodes
	var flexOffsets = []; // amount of vertical space it takes up
	var flexHeights = []; // actual css height
	var usedHeight = 0;

	undistributeHeight(els); // give all elements their natural height

	// find elements that are below the recommended height (expandable).
	// important to query for heights in a single first pass (to avoid reflow oscillation).
	els.each(function(i, el) {
		var minOffset = i === els.length - 1 ? minOffset2 : minOffset1;
		var naturalOffset = $(el).outerHeight(true);

		if (naturalOffset < minOffset) {
			flexEls.push(el);
			flexOffsets.push(naturalOffset);
			flexHeights.push($(el).height());
		}
		else {
			// this element stretches past recommended height (non-expandable). mark the space as occupied.
			usedHeight += naturalOffset;
		}
	});

	// readjust the recommended height to only consider the height available to non-maxed-out rows.
	if (shouldRedistribute) {
		availableHeight -= usedHeight;
		minOffset1 = Math.floor(availableHeight / flexEls.length);
		minOffset2 = Math.floor(availableHeight - minOffset1 * (flexEls.length - 1)); // *FLOORING NOTE*
	}

	// assign heights to all expandable elements
	$(flexEls).each(function(i, el) {
		var minOffset = i === flexEls.length - 1 ? minOffset2 : minOffset1;
		var naturalOffset = flexOffsets[i];
		var naturalHeight = flexHeights[i];
		var newHeight = minOffset - (naturalOffset - naturalHeight); // subtract the margin/padding

		if (naturalOffset < minOffset) { // we check this again because redistribution might have changed things
			$(el).height(newHeight);
		}
	});
}


// Undoes distrubuteHeight, restoring all els to their natural height
function undistributeHeight(els) {
	els.height('');
}


// Given `els`, a jQuery set of <td> cells, find the cell with the largest natural width and set the widths of all the
// cells to be that width.
// PREREQUISITE: if you want a cell to take up width, it needs to have a single inner element w/ display:inline
function matchCellWidths(els) {
	var maxInnerWidth = 0;

	els.find('> *').each(function(i, innerEl) {
		var innerWidth = $(innerEl).outerWidth();
		if (innerWidth > maxInnerWidth) {
			maxInnerWidth = innerWidth;
		}
	});

	maxInnerWidth++; // sometimes not accurate of width the text needs to stay on one line. insurance

	els.width(maxInnerWidth);

	return maxInnerWidth;
}


// Turns a container element into a scroller if its contents is taller than the allotted height.
// Returns true if the element is now a scroller, false otherwise.
// NOTE: this method is best because it takes weird zooming dimensions into account
function setPotentialScroller(containerEl, height) {
	containerEl.height(height).addClass('fc-scroller');

	// are scrollbars needed?
	if (containerEl[0].scrollHeight - 1 > containerEl[0].clientHeight) { // !!! -1 because IE is often off-by-one :(
		return true;
	}

	unsetScroller(containerEl); // undo
	return false;
}


// Takes an element that might have been a scroller, and turns it back into a normal element.
function unsetScroller(containerEl) {
	containerEl.height('').removeClass('fc-scroller');
}


/* General DOM Utilities
----------------------------------------------------------------------------------------------------------------------*/


// borrowed from https://github.com/jquery/jquery-ui/blob/1.11.0/ui/core.js#L51
function getScrollParent(el) {
	var position = el.css('position'),
		scrollParent = el.parents().filter(function() {
			var parent = $(this);
			return (/(auto|scroll)/).test(
				parent.css('overflow') + parent.css('overflow-y') + parent.css('overflow-x')
			);
		}).eq(0);

	return position === 'fixed' || !scrollParent.length ? $(el[0].ownerDocument || document) : scrollParent;
}


// Given a container element, return an object with the pixel values of the left/right scrollbars.
// Left scrollbars might occur on RTL browsers (IE maybe?) but I have not tested.
// PREREQUISITE: container element must have a single child with display:block
function getScrollbarWidths(container) {
	var containerLeft = container.offset().left;
	var containerRight = containerLeft + container.width();
	var inner = container.children();
	var innerLeft = inner.offset().left;
	var innerRight = innerLeft + inner.outerWidth();

	return {
		left: innerLeft - containerLeft,
		right: containerRight - innerRight
	};
}


// Returns a boolean whether this was a left mouse click and no ctrl key (which means right click on Mac)
function isPrimaryMouseButton(ev) {
	return ev.which == 1 && !ev.ctrlKey;
}


/* FullCalendar-specific Misc Utilities
----------------------------------------------------------------------------------------------------------------------*/


// Creates a basic segment with the intersection of the two ranges. Returns undefined if no intersection.
// Expects all dates to be normalized to the same timezone beforehand.
function intersectionToSeg(subjectStart, subjectEnd, intervalStart, intervalEnd) {
	var segStart, segEnd;
	var isStart, isEnd;

	if (subjectEnd > intervalStart && subjectStart < intervalEnd) { // in bounds at all?

		if (subjectStart >= intervalStart) {
			segStart = subjectStart.clone();
			isStart = true;
		}
		else {
			segStart = intervalStart.clone();
			isStart =  false;
		}

		if (subjectEnd <= intervalEnd) {
			segEnd = subjectEnd.clone();
			isEnd = true;
		}
		else {
			segEnd = intervalEnd.clone();
			isEnd = false;
		}

		return {
			start: segStart,
			end: segEnd,
			isStart: isStart,
			isEnd: isEnd
		};
	}
}


function smartProperty(obj, name) { // get a camel-cased/namespaced property of an object
	obj = obj || {};
	if (obj[name] !== undefined) {
		return obj[name];
	}
	var parts = name.split(/(?=[A-Z])/),
		i = parts.length - 1, res;
	for (; i>=0; i--) {
		res = obj[parts[i].toLowerCase()];
		if (res !== undefined) {
			return res;
		}
	}
	return obj['default'];
}


/* Date Utilities
----------------------------------------------------------------------------------------------------------------------*/

var dayIDs = [ 'sun', 'mon', 'tue', 'wed', 'thu', 'fri', 'sat' ];


// Diffs the two moments into a Duration where full-days are recorded first, then the remaining time.
// Moments will have their timezones normalized.
function dayishDiff(a, b) {
	return moment.duration({
		days: a.clone().stripTime().diff(b.clone().stripTime(), 'days'),
		ms: a.time() - b.time()
	});
}


function isNativeDate(input) {
	return  Object.prototype.toString.call(input) === '[object Date]' || input instanceof Date;
}


function dateCompare(a, b) { // works with Moments and native Dates
	return a - b;
}


/* General Utilities
----------------------------------------------------------------------------------------------------------------------*/

fc.applyAll = applyAll; // export


// Create an object that has the given prototype. Just like Object.create
function createObject(proto) {
	var f = function() {};
	f.prototype = proto;
	return new f();
}


// Copies specifically-owned (non-protoype) properties of `b` onto `a`.
// FYI, $.extend would copy *all* properties of `b` onto `a`.
function extend(a, b) {
	for (var i in b) {
		if (b.hasOwnProperty(i)) {
			a[i] = b[i];
		}
	}
}


function applyAll(functions, thisObj, args) {
	if ($.isFunction(functions)) {
		functions = [ functions ];
	}
	if (functions) {
		var i;
		var ret;
		for (i=0; i<functions.length; i++) {
			ret = functions[i].apply(thisObj, args) || ret;
		}
		return ret;
	}
}


function firstDefined() {
	for (var i=0; i<arguments.length; i++) {
		if (arguments[i] !== undefined) {
			return arguments[i];
		}
	}
}


function htmlEscape(s) {
	return (s + '').replace(/&/g, '&amp;')
		.replace(/</g, '&lt;')
		.replace(/>/g, '&gt;')
		.replace(/'/g, '&#039;')
		.replace(/"/g, '&quot;')
		.replace(/\n/g, '<br />');
}


function stripHtmlEntities(text) {
	return text.replace(/&.*?;/g, '');
}


function capitaliseFirstLetter(str) {
	return str.charAt(0).toUpperCase() + str.slice(1);
}


// Returns a function, that, as long as it continues to be invoked, will not
// be triggered. The function will be called after it stops being called for
// N milliseconds.
// https://github.com/jashkenas/underscore/blob/1.6.0/underscore.js#L714
function debounce(func, wait) {
	var timeoutId;
	var args;
	var context;
	var timestamp; // of most recent call
	var later = function() {
		var last = +new Date() - timestamp;
		if (last < wait && last > 0) {
			timeoutId = setTimeout(later, wait - last);
		}
		else {
			timeoutId = null;
			func.apply(context, args);
			if (!timeoutId) {
				context = args = null;
			}
		}
	};

	return function() {
		context = this;
		args = arguments;
		timestamp = +new Date();
		if (!timeoutId) {
			timeoutId = setTimeout(later, wait);
		}
	};
}

;;

var ambigDateOfMonthRegex = /^\s*\d{4}-\d\d$/;
var ambigTimeOrZoneRegex =
	/^\s*\d{4}-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?)?$/;


// Creating
// -------------------------------------------------------------------------------------------------

// Creates a new moment, similar to the vanilla moment(...) constructor, but with
// extra features (ambiguous time, enhanced formatting). When gived an existing moment,
// it will function as a clone (and retain the zone of the moment). Anything else will
// result in a moment in the local zone.
fc.moment = function() {
	return makeMoment(arguments);
};

// Sames as fc.moment, but forces the resulting moment to be in the UTC timezone.
fc.moment.utc = function() {
	var mom = makeMoment(arguments, true);

	// Force it into UTC because makeMoment doesn't guarantee it.
	if (mom.hasTime()) { // don't give ambiguously-timed moments a UTC zone
		mom.utc();
	}

	return mom;
};

// Same as fc.moment, but when given an ISO8601 string, the timezone offset is preserved.
// ISO8601 strings with no timezone offset will become ambiguously zoned.
fc.moment.parseZone = function() {
	return makeMoment(arguments, true, true);
};

// Builds an FCMoment from args. When given an existing moment, it clones. When given a native
// Date, or called with no arguments (the current time), the resulting moment will be local.
// Anything else needs to be "parsed" (a string or an array), and will be affected by:
//    parseAsUTC - if there is no zone information, should we parse the input in UTC?
//    parseZone - if there is zone information, should we force the zone of the moment?
function makeMoment(args, parseAsUTC, parseZone) {
	var input = args[0];
	var isSingleString = args.length == 1 && typeof input === 'string';
	var isAmbigTime;
	var isAmbigZone;
	var ambigMatch;
	var output; // an object with fields for the new FCMoment object

	if (moment.isMoment(input)) {
		output = moment.apply(null, args); // clone it

		// the ambig properties have not been preserved in the clone, so reassign them
		if (input._ambigTime) {
			output._ambigTime = true;
		}
		if (input._ambigZone) {
			output._ambigZone = true;
		}
	}
	else if (isNativeDate(input) || input === undefined) {
		output = moment.apply(null, args); // will be local
	}
	else { // "parsing" is required
		isAmbigTime = false;
		isAmbigZone = false;

		if (isSingleString) {
			if (ambigDateOfMonthRegex.test(input)) {
				// accept strings like '2014-05', but convert to the first of the month
				input += '-01';
				args = [ input ]; // for when we pass it on to moment's constructor
				isAmbigTime = true;
				isAmbigZone = true;
			}
			else if ((ambigMatch = ambigTimeOrZoneRegex.exec(input))) {
				isAmbigTime = !ambigMatch[5]; // no time part?
				isAmbigZone = true;
			}
		}
		else if ($.isArray(input)) {
			// arrays have no timezone information, so assume ambiguous zone
			isAmbigZone = true;
		}
		// otherwise, probably a string with a format

		if (parseAsUTC) {
			output = moment.utc.apply(moment, args);
		}
		else {
			output = moment.apply(null, args);
		}

		if (isAmbigTime) {
			output._ambigTime = true;
			output._ambigZone = true; // ambiguous time always means ambiguous zone
		}
		else if (parseZone) { // let's record the inputted zone somehow
			if (isAmbigZone) {
				output._ambigZone = true;
			}
			else if (isSingleString) {
				output.zone(input); // if not a valid zone, will assign UTC
			}
		}
	}

	return new FCMoment(output);
}

// Our subclass of Moment.
// Accepts an object with the internal Moment properties that should be copied over to
// `this` object (most likely another Moment object). The values in this data must not
// be referenced by anything else (two moments sharing a Date object for example).
function FCMoment(internalData) {
	extend(this, internalData);
}

// Chain the prototype to Moment's
FCMoment.prototype = createObject(moment.fn);

// We need this because Moment's implementation won't create an FCMoment,
// nor will it copy over the ambig flags.
FCMoment.prototype.clone = function() {
	return makeMoment([ this ]);
};


// Time-of-day
// -------------------------------------------------------------------------------------------------

// GETTER
// Returns a Duration with the hours/minutes/seconds/ms values of the moment.
// If the moment has an ambiguous time, a duration of 00:00 will be returned.
//
// SETTER
// You can supply a Duration, a Moment, or a Duration-like argument.
// When setting the time, and the moment has an ambiguous time, it then becomes unambiguous.
FCMoment.prototype.time = function(time) {
	if (time == null) { // getter
		return moment.duration({
			hours: this.hours(),
			minutes: this.minutes(),
			seconds: this.seconds(),
			milliseconds: this.milliseconds()
		});
	}
	else { // setter

		delete this._ambigTime; // mark that the moment now has a time

		if (!moment.isDuration(time) && !moment.isMoment(time)) {
			time = moment.duration(time);
		}

		// The day value should cause overflow (so 24 hours becomes 00:00:00 of next day).
		// Only for Duration times, not Moment times.
		var dayHours = 0;
		if (moment.isDuration(time)) {
			dayHours = Math.floor(time.asDays()) * 24;
		}

		// We need to set the individual fields.
		// Can't use startOf('day') then add duration. In case of DST at start of day.
		return this.hours(dayHours + time.hours())
			.minutes(time.minutes())
			.seconds(time.seconds())
			.milliseconds(time.milliseconds());
	}
};

// Converts the moment to UTC, stripping out its time-of-day and timezone offset,
// but preserving its YMD. A moment with a stripped time will display no time
// nor timezone offset when .format() is called.
FCMoment.prototype.stripTime = function() {
	var a = this.toArray(); // year,month,date,hours,minutes,seconds as an array

	// set the internal UTC flag
	moment.fn.utc.call(this); // call the original method, because we don't want to affect _ambigZone

	this.year(a[0]) // TODO: find a way to do this in one shot
		.month(a[1])
		.date(a[2])
		.hours(0)
		.minutes(0)
		.seconds(0)
		.milliseconds(0);

	// Mark the time as ambiguous. This needs to happen after the .utc() call, which calls .zone(), which
	// clears all ambig flags. Same concept with the .year/month/date calls in the case of moment-timezone.
	this._ambigTime = true;
	this._ambigZone = true; // if ambiguous time, also ambiguous timezone offset

	return this; // for chaining
};

// Returns if the moment has a non-ambiguous time (boolean)
FCMoment.prototype.hasTime = function() {
	return !this._ambigTime;
};


// Timezone
// -------------------------------------------------------------------------------------------------

// Converts the moment to UTC, stripping out its timezone offset, but preserving its
// YMD and time-of-day. A moment with a stripped timezone offset will display no
// timezone offset when .format() is called.
FCMoment.prototype.stripZone = function() {
	var a = this.toArray(); // year,month,date,hours,minutes,seconds as an array
	var wasAmbigTime = this._ambigTime;

	moment.fn.utc.call(this); // set the internal UTC flag

	this.year(a[0]) // TODO: find a way to do this in one shot
		.month(a[1])
		.date(a[2])
		.hours(a[3])
		.minutes(a[4])
		.seconds(a[5])
		.milliseconds(a[6]);

	if (wasAmbigTime) {
		// the above call to .utc()/.zone() unfortunately clears the ambig flags, so reassign
		this._ambigTime = true;
	}

	// Mark the zone as ambiguous. This needs to happen after the .utc() call, which calls .zone(), which
	// clears all ambig flags. Same concept with the .year/month/date calls in the case of moment-timezone.
	this._ambigZone = true;

	return this; // for chaining
};

// Returns of the moment has a non-ambiguous timezone offset (boolean)
FCMoment.prototype.hasZone = function() {
	return !this._ambigZone;
};

// this method implicitly marks a zone
FCMoment.prototype.zone = function(tzo) {

	if (tzo != null) {
		// FYI, the delete statements need to be before the .zone() call or else chaos ensues
		// for reasons I don't understand. 
		delete this._ambigTime;
		delete this._ambigZone;
	}

	return moment.fn.zone.apply(this, arguments);
};

// this method implicitly marks a zone
FCMoment.prototype.local = function() {
	var a = this.toArray(); // year,month,date,hours,minutes,seconds as an array
	var wasAmbigZone = this._ambigZone;

	// will happen anyway via .local()/.zone(), but don't want to rely on internal implementation
	delete this._ambigTime;
	delete this._ambigZone;

	moment.fn.local.apply(this, arguments);

	if (wasAmbigZone) {
		// If the moment was ambiguously zoned, the date fields were stored as UTC.
		// We want to preserve these, but in local time.
		this.year(a[0]) // TODO: find a way to do this in one shot
			.month(a[1])
			.date(a[2])
			.hours(a[3])
			.minutes(a[4])
			.seconds(a[5])
			.milliseconds(a[6]);
	}

	return this; // for chaining
};

// this method implicitly marks a zone
FCMoment.prototype.utc = function() {

	// will happen anyway via .local()/.zone(), but don't want to rely on internal implementation
	delete this._ambigTime;
	delete this._ambigZone;

	return moment.fn.utc.apply(this, arguments);
};


// Formatting
// -------------------------------------------------------------------------------------------------

FCMoment.prototype.format = function() {
	if (arguments[0]) {
		return formatDate(this, arguments[0]); // our extended formatting
	}
	if (this._ambigTime) {
		return momentFormat(this, 'YYYY-MM-DD');
	}
	if (this._ambigZone) {
		return momentFormat(this, 'YYYY-MM-DD[T]HH:mm:ss');
	}
	return momentFormat(this); // default moment original formatting
};

FCMoment.prototype.toISOString = function() {
	if (this._ambigTime) {
		return momentFormat(this, 'YYYY-MM-DD');
	}
	if (this._ambigZone) {
		return momentFormat(this, 'YYYY-MM-DD[T]HH:mm:ss');
	}
	return moment.fn.toISOString.apply(this, arguments);
};


// Querying
// -------------------------------------------------------------------------------------------------

// Is the moment within the specified range? `end` is exclusive.
FCMoment.prototype.isWithin = function(start, end) {
	var a = commonlyAmbiguate([ this, start, end ]);
	return a[0] >= a[1] && a[0] < a[2];
};

// When isSame is called with units, timezone ambiguity is normalized before the comparison happens.
// If no units are specified, the two moments must be identically the same, with matching ambig flags.
FCMoment.prototype.isSame = function(input, units) {
	var a;

	if (units) {
		a = commonlyAmbiguate([ this, input ], true); // normalize timezones but don't erase times
		return moment.fn.isSame.call(a[0], a[1], units);
	}
	else {
		input = fc.moment.parseZone(input); // normalize input
		return moment.fn.isSame.call(this, input) &&
			Boolean(this._ambigTime) === Boolean(input._ambigTime) &&
			Boolean(this._ambigZone) === Boolean(input._ambigZone);
	}
};

// Make these query methods work with ambiguous moments
$.each([
	'isBefore',
	'isAfter'
], function(i, methodName) {
	FCMoment.prototype[methodName] = function(input, units) {
		var a = commonlyAmbiguate([ this, input ]);
		return moment.fn[methodName].call(a[0], a[1], units);
	};
});


// Misc Internals
// -------------------------------------------------------------------------------------------------

// given an array of moment-like inputs, return a parallel array w/ moments similarly ambiguated.
// for example, of one moment has ambig time, but not others, all moments will have their time stripped.
// set `preserveTime` to `true` to keep times, but only normalize zone ambiguity.
function commonlyAmbiguate(inputs, preserveTime) {
	var outputs = [];
	var anyAmbigTime = false;
	var anyAmbigZone = false;
	var i;

	for (i=0; i<inputs.length; i++) {
		outputs.push(fc.moment.parseZone(inputs[i]));
		anyAmbigTime = anyAmbigTime || outputs[i]._ambigTime;
		anyAmbigZone = anyAmbigZone || outputs[i]._ambigZone;
	}

	for (i=0; i<outputs.length; i++) {
		if (anyAmbigTime && !preserveTime) {
			outputs[i].stripTime();
		}
		else if (anyAmbigZone) {
			outputs[i].stripZone();
		}
	}

	return outputs;
}

;;

// Single Date Formatting
// -------------------------------------------------------------------------------------------------


// call this if you want Moment's original format method to be used
function momentFormat(mom, formatStr) {
	return moment.fn.format.call(mom, formatStr);
}


// Formats `date` with a Moment formatting string, but allow our non-zero areas and
// additional token.
function formatDate(date, formatStr) {
	return formatDateWithChunks(date, getFormatStringChunks(formatStr));
}


function formatDateWithChunks(date, chunks) {
	var s = '';
	var i;

	for (i=0; i<chunks.length; i++) {
		s += formatDateWithChunk(date, chunks[i]);
	}

	return s;
}


// addition formatting tokens we want recognized
var tokenOverrides = {
	t: function(date) { // "a" or "p"
		return momentFormat(date, 'a').charAt(0);
	},
	T: function(date) { // "A" or "P"
		return momentFormat(date, 'A').charAt(0);
	}
};


function formatDateWithChunk(date, chunk) {
	var token;
	var maybeStr;

	if (typeof chunk === 'string') { // a literal string
		return chunk;
	}
	else if ((token = chunk.token)) { // a token, like "YYYY"
		if (tokenOverrides[token]) {
			return tokenOverrides[token](date); // use our custom token
		}
		return momentFormat(date, token);
	}
	else if (chunk.maybe) { // a grouping of other chunks that must be non-zero
		maybeStr = formatDateWithChunks(date, chunk.maybe);
		if (maybeStr.match(/[1-9]/)) {
			return maybeStr;
		}
	}

	return '';
}


// Date Range Formatting
// -------------------------------------------------------------------------------------------------
// TODO: make it work with timezone offset

// Using a formatting string meant for a single date, generate a range string, like
// "Sep 2 - 9 2013", that intelligently inserts a separator where the dates differ.
// If the dates are the same as far as the format string is concerned, just return a single
// rendering of one date, without any separator.
function formatRange(date1, date2, formatStr, separator, isRTL) {
	var localeData;

	date1 = fc.moment.parseZone(date1);
	date2 = fc.moment.parseZone(date2);

	localeData = (date1.localeData || date1.lang).call(date1); // works with moment-pre-2.8

	// Expand localized format strings, like "LL" -> "MMMM D YYYY"
	formatStr = localeData.longDateFormat(formatStr) || formatStr;
	// BTW, this is not important for `formatDate` because it is impossible to put custom tokens
	// or non-zero areas in Moment's localized format strings.

	separator = separator || ' - ';

	return formatRangeWithChunks(
		date1,
		date2,
		getFormatStringChunks(formatStr),
		separator,
		isRTL
	);
}
fc.formatRange = formatRange; // expose


function formatRangeWithChunks(date1, date2, chunks, separator, isRTL) {
	var chunkStr; // the rendering of the chunk
	var leftI;
	var leftStr = '';
	var rightI;
	var rightStr = '';
	var middleI;
	var middleStr1 = '';
	var middleStr2 = '';
	var middleStr = '';

	// Start at the leftmost side of the formatting string and continue until you hit a token
	// that is not the same between dates.
	for (leftI=0; leftI<chunks.length; leftI++) {
		chunkStr = formatSimilarChunk(date1, date2, chunks[leftI]);
		if (chunkStr === false) {
			break;
		}
		leftStr += chunkStr;
	}

	// Similarly, start at the rightmost side of the formatting string and move left
	for (rightI=chunks.length-1; rightI>leftI; rightI--) {
		chunkStr = formatSimilarChunk(date1, date2, chunks[rightI]);
		if (chunkStr === false) {
			break;
		}
		rightStr = chunkStr + rightStr;
	}

	// The area in the middle is different for both of the dates.
	// Collect them distinctly so we can jam them together later.
	for (middleI=leftI; middleI<=rightI; middleI++) {
		middleStr1 += formatDateWithChunk(date1, chunks[middleI]);
		middleStr2 += formatDateWithChunk(date2, chunks[middleI]);
	}

	if (middleStr1 || middleStr2) {
		if (isRTL) {
			middleStr = middleStr2 + separator + middleStr1;
		}
		else {
			middleStr = middleStr1 + separator + middleStr2;
		}
	}

	return leftStr + middleStr + rightStr;
}


var similarUnitMap = {
	Y: 'year',
	M: 'month',
	D: 'day', // day of month
	d: 'day', // day of week
	// prevents a separator between anything time-related...
	A: 'second', // AM/PM
	a: 'second', // am/pm
	T: 'second', // A/P
	t: 'second', // a/p
	H: 'second', // hour (24)
	h: 'second', // hour (12)
	m: 'second', // minute
	s: 'second' // second
};
// TODO: week maybe?


// Given a formatting chunk, and given that both dates are similar in the regard the
// formatting chunk is concerned, format date1 against `chunk`. Otherwise, return `false`.
function formatSimilarChunk(date1, date2, chunk) {
	var token;
	var unit;

	if (typeof chunk === 'string') { // a literal string
		return chunk;
	}
	else if ((token = chunk.token)) {
		unit = similarUnitMap[token.charAt(0)];
		// are the dates the same for this unit of measurement?
		if (unit && date1.isSame(date2, unit)) {
			return momentFormat(date1, token); // would be the same if we used `date2`
			// BTW, don't support custom tokens
		}
	}

	return false; // the chunk is NOT the same for the two dates
	// BTW, don't support splitting on non-zero areas
}


// Chunking Utils
// -------------------------------------------------------------------------------------------------


var formatStringChunkCache = {};


function getFormatStringChunks(formatStr) {
	if (formatStr in formatStringChunkCache) {
		return formatStringChunkCache[formatStr];
	}
	return (formatStringChunkCache[formatStr] = chunkFormatString(formatStr));
}


// Break the formatting string into an array of chunks
function chunkFormatString(formatStr) {
	var chunks = [];
	var chunker = /\[([^\]]*)\]|\(([^\)]*)\)|(LT|(\w)\4*o?)|([^\w\[\(]+)/g; // TODO: more descrimination
	var match;

	while ((match = chunker.exec(formatStr))) {
		if (match[1]) { // a literal string inside [ ... ]
			chunks.push(match[1]);
		}
		else if (match[2]) { // non-zero formatting inside ( ... )
			chunks.push({ maybe: chunkFormatString(match[2]) });
		}
		else if (match[3]) { // a formatting token
			chunks.push({ token: match[3] });
		}
		else if (match[5]) { // an unenclosed literal string
			chunks.push(match[5]);
		}
	}

	return chunks;
}

;;

/* A rectangular panel that is absolutely positioned over other content
------------------------------------------------------------------------------------------------------------------------
Options:
	- className (string)
	- content (HTML string or jQuery element set)
	- parentEl
	- top
	- left
	- right (the x coord of where the right edge should be. not a "CSS" right)
	- autoHide (boolean)
	- show (callback)
	- hide (callback)
*/

function Popover(options) {
	this.options = options || {};
}


Popover.prototype = {

	isHidden: true,
	options: null,
	el: null, // the container element for the popover. generated by this object
	documentMousedownProxy: null, // document mousedown handler bound to `this`
	margin: 10, // the space required between the popover and the edges of the scroll container


	// Shows the popover on the specified position. Renders it if not already
	show: function() {
		if (this.isHidden) {
			if (!this.el) {
				this.render();
			}
			this.el.show();
			this.position();
			this.isHidden = false;
			this.trigger('show');
		}
	},


	// Hides the popover, through CSS, but does not remove it from the DOM
	hide: function() {
		if (!this.isHidden) {
			this.el.hide();
			this.isHidden = true;
			this.trigger('hide');
		}
	},


	// Creates `this.el` and renders content inside of it
	render: function() {
		var _this = this;
		var options = this.options;

		this.el = $('<div class="fc-popover"/>')
			.addClass(options.className || '')
			.css({
				// position initially to the top left to avoid creating scrollbars
				top: 0,
				left: 0
			})
			.append(options.content)
			.appendTo(options.parentEl);

		// when a click happens on anything inside with a 'fc-close' className, hide the popover
		this.el.on('click', '.fc-close', function() {
			_this.hide();
		});

		if (options.autoHide) {
			$(document).on('mousedown', this.documentMousedownProxy = $.proxy(this, 'documentMousedown'));
		}
	},


	// Triggered when the user clicks *anywhere* in the document, for the autoHide feature
	documentMousedown: function(ev) {
		// only hide the popover if the click happened outside the popover
		if (this.el && !$(ev.target).closest(this.el).length) {
			this.hide();
		}
	},


	// Hides and unregisters any handlers
	destroy: function() {
		this.hide();

		if (this.el) {
			this.el.remove();
			this.el = null;
		}

		$(document).off('mousedown', this.documentMousedownProxy);
	},


	// Positions the popover optimally, using the top/left/right options
	position: function() {
		var options = this.options;
		var origin = this.el.offsetParent().offset();
		var width = this.el.outerWidth();
		var height = this.el.outerHeight();
		var windowEl = $(window);
		var viewportEl = getScrollParent(this.el);
		var viewportTop;
		var viewportLeft;
		var viewportOffset;
		var top; // the "position" (not "offset") values for the popover
		var left; //

		// compute top and left
		top = options.top || 0;
		if (options.left !== undefined) {
			left = options.left;
		}
		else if (options.right !== undefined) {
			left = options.right - width; // derive the left value from the right value
		}
		else {
			left = 0;
		}

		if (viewportEl.is(window) || viewportEl.is(document)) { // normalize getScrollParent's result
			viewportEl = windowEl;
			viewportTop = 0; // the window is always at the top left
			viewportLeft = 0; // (and .offset() won't work if called here)
		}
		else {
			viewportOffset = viewportEl.offset();
			viewportTop = viewportOffset.top;
			viewportLeft = viewportOffset.left;
		}

		// if the window is scrolled, it causes the visible area to be further down
		viewportTop += windowEl.scrollTop();
		viewportLeft += windowEl.scrollLeft();

		// constrain to the view port. if constrained by two edges, give precedence to top/left
		if (options.viewportConstrain !== false) {
			top = Math.min(top, viewportTop + viewportEl.outerHeight() - height - this.margin);
			top = Math.max(top, viewportTop + this.margin);
			left = Math.min(left, viewportLeft + viewportEl.outerWidth() - width - this.margin);
			left = Math.max(left, viewportLeft + this.margin);
		}

		this.el.css({
			top: top - origin.top,
			left: left - origin.left
		});
	},


	// Triggers a callback. Calls a function in the option hash of the same name.
	// Arguments beyond the first `name` are forwarded on.
	// TODO: better code reuse for this. Repeat code
	trigger: function(name) {
		if (this.options[name]) {
			this.options[name].apply(this, Array.prototype.slice.call(arguments, 1));
		}
	}

};

;;

/* A "coordinate map" converts pixel coordinates into an associated cell, which has an associated date
------------------------------------------------------------------------------------------------------------------------
Common interface:

	CoordMap.prototype = {
		build: function() {},
		getCell: function(x, y) {}
	};

*/

/* Coordinate map for a grid component
----------------------------------------------------------------------------------------------------------------------*/

function GridCoordMap(grid) {
	this.grid = grid;
}


GridCoordMap.prototype = {

	grid: null, // reference to the Grid
	rows: null, // the top-to-bottom y coordinates. including the bottom of the last item
	cols: null, // the left-to-right x coordinates. including the right of the last item

	containerEl: null, // container element that all coordinates are constrained to. optionally assigned
	minX: null,
	maxX: null, // exclusive
	minY: null,
	maxY: null, // exclusive


	// Queries the grid for the coordinates of all the cells
	build: function() {
		this.grid.buildCoords(
			this.rows = [],
			this.cols = []
		);
		this.computeBounds();
	},


	// Given a coordinate of the document, gets the associated cell. If no cell is underneath, returns null
	getCell: function(x, y) {
		var cell = null;
		var rows = this.rows;
		var cols = this.cols;
		var r = -1;
		var c = -1;
		var i;

		if (this.inBounds(x, y)) {

			for (i = 0; i < rows.length; i++) {
				if (y >= rows[i][0] && y < rows[i][1]) {
					r = i;
					break;
				}
			}

			for (i = 0; i < cols.length; i++) {
				if (x >= cols[i][0] && x < cols[i][1]) {
					c = i;
					break;
				}
			}

			if (r >= 0 && c >= 0) {
				cell = { row: r, col: c };
				cell.grid = this.grid;
				cell.date = this.grid.getCellDate(cell);
			}
		}

		return cell;
	},


	// If there is a containerEl, compute the bounds into min/max values
	computeBounds: function() {
		var containerOffset;

		if (this.containerEl) {
			containerOffset = this.containerEl.offset();
			this.minX = containerOffset.left;
			this.maxX = containerOffset.left + this.containerEl.outerWidth();
			this.minY = containerOffset.top;
			this.maxY = containerOffset.top + this.containerEl.outerHeight();
		}
	},


	// Determines if the given coordinates are in bounds. If no `containerEl`, always true
	inBounds: function(x, y) {
		if (this.containerEl) {
			return x >= this.minX && x < this.maxX && y >= this.minY && y < this.maxY;
		}
		return true;
	}

};


/* Coordinate map that is a combination of multiple other coordinate maps
----------------------------------------------------------------------------------------------------------------------*/

function ComboCoordMap(coordMaps) {
	this.coordMaps = coordMaps;
}


ComboCoordMap.prototype = {

	coordMaps: null, // an array of CoordMaps


	// Builds all coordMaps
	build: function() {
		var coordMaps = this.coordMaps;
		var i;

		for (i = 0; i < coordMaps.length; i++) {
			coordMaps[i].build();
		}
	},


	// Queries all coordMaps for the cell underneath the given coordinates, returning the first result
	getCell: function(x, y) {
		var coordMaps = this.coordMaps;
		var cell = null;
		var i;

		for (i = 0; i < coordMaps.length && !cell; i++) {
			cell = coordMaps[i].getCell(x, y);
		}

		return cell;
	}

};

;;

/* Tracks mouse movements over a CoordMap and raises events about which cell the mouse is over.
----------------------------------------------------------------------------------------------------------------------*/
// TODO: implement scrolling

function DragListener(coordMap, options) {
	this.coordMap = coordMap;
	this.options = options || {};
}


DragListener.prototype = {

	coordMap: null,
	options: null,

	isListening: false,
	isDragging: false,

	// the cell/date the mouse was over when listening started
	origCell: null,
	origDate: null,

	// the cell/date the mouse is over
	cell: null,
	date: null,

	// coordinates of the initial mousedown
	mouseX0: null,
	mouseY0: null,

	// handler attached to the document, bound to the DragListener's `this`
	mousemoveProxy: null,
	mouseupProxy: null,

	scrollEl: null,
	scrollBounds: null, // { top, bottom, left, right }
	scrollTopVel: null, // pixels per second
	scrollLeftVel: null, // pixels per second
	scrollIntervalId: null, // ID of setTimeout for scrolling animation loop
	scrollHandlerProxy: null, // this-scoped function for handling when scrollEl is scrolled

	scrollSensitivity: 30, // pixels from edge for scrolling to start
	scrollSpeed: 200, // pixels per second, at maximum speed
	scrollIntervalMs: 50, // millisecond wait between scroll increment


	// Call this when the user does a mousedown. Will probably lead to startListening
	mousedown: function(ev) {
		if (isPrimaryMouseButton(ev)) {

			ev.preventDefault(); // prevents native selection in most browsers

			this.startListening(ev);

			// start the drag immediately if there is no minimum distance for a drag start
			if (!this.options.distance) {
				this.startDrag(ev);
			}
		}
	},


	// Call this to start tracking mouse movements
	startListening: function(ev) {
		var scrollParent;
		var cell;

		if (!this.isListening) {

			// grab scroll container and attach handler
			if (ev && this.options.scroll) {
				scrollParent = getScrollParent($(ev.target));
				if (!scrollParent.is(window) && !scrollParent.is(document)) {
					this.scrollEl = scrollParent;

					// scope to `this`, and use `debounce` to make sure rapid calls don't happen
					this.scrollHandlerProxy = debounce($.proxy(this, 'scrollHandler'), 100);
					this.scrollEl.on('scroll', this.scrollHandlerProxy);
				}
			}

			this.computeCoords(); // relies on `scrollEl`

			// get info on the initial cell, date, and coordinates
			if (ev) {
				cell = this.getCell(ev);
				this.origCell = cell;
				this.origDate = cell ? cell.date : null;

				this.mouseX0 = ev.pageX;
				this.mouseY0 = ev.pageY;
			}

			$(document)
				.on('mousemove', this.mousemoveProxy = $.proxy(this, 'mousemove'))
				.on('mouseup', this.mouseupProxy = $.proxy(this, 'mouseup'))
				.on('selectstart', this.preventDefault); // prevents native selection in IE<=8

			this.isListening = true;
			this.trigger('listenStart', ev);
		}
	},


	// Recomputes the drag-critical positions of elements
	computeCoords: function() {
		this.coordMap.build();
		this.computeScrollBounds();
	},


	// Called when the user moves the mouse
	mousemove: function(ev) {
		var minDistance;
		var distanceSq; // current distance from mouseX0/mouseY0, squared

		if (!this.isDragging) { // if not already dragging...
			// then start the drag if the minimum distance criteria is met
			minDistance = this.options.distance || 1;
			distanceSq = Math.pow(ev.pageX - this.mouseX0, 2) + Math.pow(ev.pageY - this.mouseY0, 2);
			if (distanceSq >= minDistance * minDistance) { // use pythagorean theorem
				this.startDrag(ev);
			}
		}

		if (this.isDragging) {
			this.drag(ev); // report a drag, even if this mousemove initiated the drag
		}
	},


	// Call this to initiate a legitimate drag.
	// This function is called internally from this class, but can also be called explicitly from outside
	startDrag: function(ev) {
		var cell;

		if (!this.isListening) { // startDrag must have manually initiated
			this.startListening();
		}

		if (!this.isDragging) {
			this.isDragging = true;
			this.trigger('dragStart', ev);

			// report the initial cell the mouse is over
			cell = this.getCell(ev);
			if (cell) {
				this.cellOver(cell, true);
			}
		}
	},


	// Called while the mouse is being moved and when we know a legitimate drag is taking place
	drag: function(ev) {
		var cell;

		if (this.isDragging) {
			cell = this.getCell(ev);

			if (!isCellsEqual(cell, this.cell)) { // a different cell than before?
				if (this.cell) {
					this.cellOut();
				}
				if (cell) {
					this.cellOver(cell);
				}
			}

			this.dragScroll(ev); // will possibly cause scrolling
		}
	},


	// Called when a the mouse has just moved over a new cell
	cellOver: function(cell) {
		this.cell = cell;
		this.date = cell.date;
		this.trigger('cellOver', cell, cell.date);
	},


	// Called when the mouse has just moved out of a cell
	cellOut: function() {
		if (this.cell) {
			this.trigger('cellOut', this.cell);
			this.cell = null;
			this.date = null;
		}
	},


	// Called when the user does a mouseup
	mouseup: function(ev) {
		this.stopDrag(ev);
		this.stopListening(ev);
	},


	// Called when the drag is over. Will not cause listening to stop however.
	// A concluding 'cellOut' event will NOT be triggered.
	stopDrag: function(ev) {
		if (this.isDragging) {
			this.stopScrolling();
			this.trigger('dragStop', ev);
			this.isDragging = false;
		}
	},


	// Call this to stop listening to the user's mouse events
	stopListening: function(ev) {
		if (this.isListening) {

			// remove the scroll handler if there is a scrollEl
			if (this.scrollEl) {
				this.scrollEl.off('scroll', this.scrollHandlerProxy);
				this.scrollHandlerProxy = null;
			}

			$(document)
				.off('mousemove', this.mousemoveProxy)
				.off('mouseup', this.mouseupProxy)
				.off('selectstart', this.preventDefault);

			this.mousemoveProxy = null;
			this.mouseupProxy = null;

			this.isListening = false;
			this.trigger('listenStop', ev);

			this.origCell = this.cell = null;
			this.origDate = this.date = null;
		}
	},


	// Gets the cell underneath the coordinates for the given mouse event
	getCell: function(ev) {
		return this.coordMap.getCell(ev.pageX, ev.pageY);
	},


	// Triggers a callback. Calls a function in the option hash of the same name.
	// Arguments beyond the first `name` are forwarded on.
	trigger: function(name) {
		if (this.options[name]) {
			this.options[name].apply(this, Array.prototype.slice.call(arguments, 1));
		}
	},


	// Stops a given mouse event from doing it's native browser action. In our case, text selection.
	preventDefault: function(ev) {
		ev.preventDefault();
	},


	/* Scrolling
	------------------------------------------------------------------------------------------------------------------*/


	// Computes and stores the bounding rectangle of scrollEl
	computeScrollBounds: function() {
		var el = this.scrollEl;
		var offset;

		if (el) {
			offset = el.offset();
			this.scrollBounds = {
				top: offset.top,
				left: offset.left,
				bottom: offset.top + el.outerHeight(),
				right: offset.left + el.outerWidth()
			};
		}
	},


	// Called when the dragging is in progress and scrolling should be updated
	dragScroll: function(ev) {
		var sensitivity = this.scrollSensitivity;
		var bounds = this.scrollBounds;
		var topCloseness, bottomCloseness;
		var leftCloseness, rightCloseness;
		var topVel = 0;
		var leftVel = 0;

		if (bounds) { // only scroll if scrollEl exists

			// compute closeness to edges. valid range is from 0.0 - 1.0
			topCloseness = (sensitivity - (ev.pageY - bounds.top)) / sensitivity;
			bottomCloseness = (sensitivity - (bounds.bottom - ev.pageY)) / sensitivity;
			leftCloseness = (sensitivity - (ev.pageX - bounds.left)) / sensitivity;
			rightCloseness = (sensitivity - (bounds.right - ev.pageX)) / sensitivity;

			// translate vertical closeness into velocity.
			// mouse must be completely in bounds for velocity to happen.
			if (topCloseness >= 0 && topCloseness <= 1) {
				topVel = topCloseness * this.scrollSpeed * -1; // negative. for scrolling up
			}
			else if (bottomCloseness >= 0 && bottomCloseness <= 1) {
				topVel = bottomCloseness * this.scrollSpeed;
			}

			// translate horizontal closeness into velocity
			if (leftCloseness >= 0 && leftCloseness <= 1) {
				leftVel = leftCloseness * this.scrollSpeed * -1; // negative. for scrolling left
			}
			else if (rightCloseness >= 0 && rightCloseness <= 1) {
				leftVel = rightCloseness * this.scrollSpeed;
			}
		}

		this.setScrollVel(topVel, leftVel);
	},


	// Sets the speed-of-scrolling for the scrollEl
	setScrollVel: function(topVel, leftVel) {

		this.scrollTopVel = topVel;
		this.scrollLeftVel = leftVel;

		this.constrainScrollVel(); // massages into realistic values

		// if there is non-zero velocity, and an animation loop hasn't already started, then START
		if ((this.scrollTopVel || this.scrollLeftVel) && !this.scrollIntervalId) {
			this.scrollIntervalId = setInterval(
				$.proxy(this, 'scrollIntervalFunc'), // scope to `this`
				this.scrollIntervalMs
			);
		}
	},


	// Forces scrollTopVel and scrollLeftVel to be zero if scrolling has already gone all the way
	constrainScrollVel: function() {
		var el = this.scrollEl;

		if (this.scrollTopVel < 0) { // scrolling up?
			if (el.scrollTop() <= 0) { // already scrolled all the way up?
				this.scrollTopVel = 0;
			}
		}
		else if (this.scrollTopVel > 0) { // scrolling down?
			if (el.scrollTop() + el[0].clientHeight >= el[0].scrollHeight) { // already scrolled all the way down?
				this.scrollTopVel = 0;
			}
		}

		if (this.scrollLeftVel < 0) { // scrolling left?
			if (el.scrollLeft() <= 0) { // already scrolled all the left?
				this.scrollLeftVel = 0;
			}
		}
		else if (this.scrollLeftVel > 0) { // scrolling right?
			if (el.scrollLeft() + el[0].clientWidth >= el[0].scrollWidth) { // already scrolled all the way right?
				this.scrollLeftVel = 0;
			}
		}
	},


	// This function gets called during every iteration of the scrolling animation loop
	scrollIntervalFunc: function() {
		var el = this.scrollEl;
		var frac = this.scrollIntervalMs / 1000; // considering animation frequency, what the vel should be mult'd by

		// change the value of scrollEl's scroll
		if (this.scrollTopVel) {
			el.scrollTop(el.scrollTop() + this.scrollTopVel * frac);
		}
		if (this.scrollLeftVel) {
			el.scrollLeft(el.scrollLeft() + this.scrollLeftVel * frac);
		}

		this.constrainScrollVel(); // since the scroll values changed, recompute the velocities

		// if scrolled all the way, which causes the vels to be zero, stop the animation loop
		if (!this.scrollTopVel && !this.scrollLeftVel) {
			this.stopScrolling();
		}
	},


	// Kills any existing scrolling animation loop
	stopScrolling: function() {
		if (this.scrollIntervalId) {
			clearInterval(this.scrollIntervalId);
			this.scrollIntervalId = null;

			// when all done with scrolling, recompute positions since they probably changed
			this.computeCoords();
		}
	},


	// Get called when the scrollEl is scrolled (NOTE: this is delayed via debounce)
	scrollHandler: function() {
		// recompute all coordinates, but *only* if this is *not* part of our scrolling animation
		if (!this.scrollIntervalId) {
			this.computeCoords();
		}
	}

};


// Returns `true` if the cells are identically equal. `false` otherwise.
// They must have the same row, col, and be from the same grid.
// Two null values will be considered equal, as two "out of the grid" states are the same.
function isCellsEqual(cell1, cell2) {

	if (!cell1 && !cell2) {
		return true;
	}

	if (cell1 && cell2) {
		return cell1.grid === cell2.grid &&
			cell1.row === cell2.row &&
			cell1.col === cell2.col;
	}

	return false;
}

;;

/* Creates a clone of an element and lets it track the mouse as it moves
----------------------------------------------------------------------------------------------------------------------*/

function MouseFollower(sourceEl, options) {
	this.options = options = options || {};
	this.sourceEl = sourceEl;
	this.parentEl = options.parentEl ? $(options.parentEl) : sourceEl.parent(); // default to sourceEl's parent
}


MouseFollower.prototype = {

	options: null,

	sourceEl: null, // the element that will be cloned and made to look like it is dragging
	el: null, // the clone of `sourceEl` that will track the mouse
	parentEl: null, // the element that `el` (the clone) will be attached to

	// the initial position of el, relative to the offset parent. made to match the initial offset of sourceEl
	top0: null,
	left0: null,

	// the initial position of the mouse
	mouseY0: null,
	mouseX0: null,

	// the number of pixels the mouse has moved from its initial position
	topDelta: null,
	leftDelta: null,

	mousemoveProxy: null, // document mousemove handler, bound to the MouseFollower's `this`

	isFollowing: false,
	isHidden: false,
	isAnimating: false, // doing the revert animation?


	// Causes the element to start following the mouse
	start: function(ev) {
		if (!this.isFollowing) {
			this.isFollowing = true;

			this.mouseY0 = ev.pageY;
			this.mouseX0 = ev.pageX;
			this.topDelta = 0;
			this.leftDelta = 0;

			if (!this.isHidden) {
				this.updatePosition();
			}

			$(document).on('mousemove', this.mousemoveProxy = $.proxy(this, 'mousemove'));
		}
	},


	// Causes the element to stop following the mouse. If shouldRevert is true, will animate back to original position.
	// `callback` gets invoked when the animation is complete. If no animation, it is invoked immediately.
	stop: function(shouldRevert, callback) {
		var _this = this;
		var revertDuration = this.options.revertDuration;

		function complete() {
			this.isAnimating = false;
			_this.destroyEl();

			this.top0 = this.left0 = null; // reset state for future updatePosition calls

			if (callback) {
				callback();
			}
		}

		if (this.isFollowing && !this.isAnimating) { // disallow more than one stop animation at a time
			this.isFollowing = false;

			$(document).off('mousemove', this.mousemoveProxy);

			if (shouldRevert && revertDuration && !this.isHidden) { // do a revert animation?
				this.isAnimating = true;
				this.el.animate({
					top: this.top0,
					left: this.left0
				}, {
					duration: revertDuration,
					complete: complete
				});
			}
			else {
				complete();
			}
		}
	},


	// Gets the tracking element. Create it if necessary
	getEl: function() {
		var el = this.el;

		if (!el) {
			this.sourceEl.width(); // hack to force IE8 to compute correct bounding box
			el = this.el = this.sourceEl.clone()
				.css({
					position: 'absolute',
					visibility: '', // in case original element was hidden (commonly through hideEvents())
					display: this.isHidden ? 'none' : '', // for when initially hidden
					margin: 0,
					right: 'auto', // erase and set width instead
					bottom: 'auto', // erase and set height instead
					width: this.sourceEl.width(), // explicit height in case there was a 'right' value
					height: this.sourceEl.height(), // explicit width in case there was a 'bottom' value
					opacity: this.options.opacity || '',
					zIndex: this.options.zIndex
				})
				.appendTo(this.parentEl);
		}

		return el;
	},


	// Removes the tracking element if it has already been created
	destroyEl: function() {
		if (this.el) {
			this.el.remove();
			this.el = null;
		}
	},


	// Update the CSS position of the tracking element
	updatePosition: function() {
		var sourceOffset;
		var origin;

		this.getEl(); // ensure this.el

		// make sure origin info was computed
		if (this.top0 === null) {
			this.sourceEl.width(); // hack to force IE8 to compute correct bounding box
			sourceOffset = this.sourceEl.offset();
			origin = this.el.offsetParent().offset();
			this.top0 = sourceOffset.top - origin.top;
			this.left0 = sourceOffset.left - origin.left;
		}

		this.el.css({
			top: this.top0 + this.topDelta,
			left: this.left0 + this.leftDelta
		});
	},


	// Gets called when the user moves the mouse
	mousemove: function(ev) {
		this.topDelta = ev.pageY - this.mouseY0;
		this.leftDelta = ev.pageX - this.mouseX0;

		if (!this.isHidden) {
			this.updatePosition();
		}
	},


	// Temporarily makes the tracking element invisible. Can be called before following starts
	hide: function() {
		if (!this.isHidden) {
			this.isHidden = true;
			if (this.el) {
				this.el.hide();
			}
		}
	},


	// Show the tracking element after it has been temporarily hidden
	show: function() {
		if (this.isHidden) {
			this.isHidden = false;
			this.updatePosition();
			this.getEl().show();
		}
	}

};

;;

/* A utility class for rendering <tr> rows.
----------------------------------------------------------------------------------------------------------------------*/
// It leverages methods of the subclass and the View to determine custom rendering behavior for each row "type"
// (such as highlight rows, day rows, helper rows, etc).

function RowRenderer(view) {
	this.view = view;
}


RowRenderer.prototype = {

	view: null, // a View object
	cellHtml: '<td/>', // plain default HTML used for a cell when no other is available


	// Renders the HTML for a row, leveraging custom cell-HTML-renderers based on the `rowType`.
	// Also applies the "intro" and "outro" cells, which are specified by the subclass and views.
	// `row` is an optional row number.
	rowHtml: function(rowType, row) {
		var view = this.view;
		var renderCell = this.getHtmlRenderer('cell', rowType);
		var cellHtml = '';
		var col;
		var date;

		row = row || 0;

		for (col = 0; col < view.colCnt; col++) {
			date = view.cellToDate(row, col);
			cellHtml += renderCell(row, col, date);
		}

		cellHtml = this.bookendCells(cellHtml, rowType, row); // apply intro and outro

		return '<tr>' + cellHtml + '</tr>';
	},


	// Applies the "intro" and "outro" HTML to the given cells.
	// Intro means the leftmost cell when the calendar is LTR and the rightmost cell when RTL. Vice-versa for outro.
	// `cells` can be an HTML string of <td>'s or a jQuery <tr> element
	// `row` is an optional row number.
	bookendCells: function(cells, rowType, row) {
		var view = this.view;
		var intro = this.getHtmlRenderer('intro', rowType)(row || 0);
		var outro = this.getHtmlRenderer('outro', rowType)(row || 0);
		var isRTL = view.opt('isRTL');
		var prependHtml = isRTL ? outro : intro;
		var appendHtml = isRTL ? intro : outro;

		if (typeof cells === 'string') {
			return prependHtml + cells + appendHtml;
		}
		else { // a jQuery <tr> element
			return cells.prepend(prependHtml).append(appendHtml);
		}
	},


	// Returns an HTML-rendering function given a specific `rendererName` (like cell, intro, or outro) and a specific
	// `rowType` (like day, eventSkeleton, helperSkeleton), which is optional.
	// If a renderer for the specific rowType doesn't exist, it will fall back to a generic renderer.
	// We will query the View object first for any custom rendering functions, then the methods of the subclass.
	getHtmlRenderer: function(rendererName, rowType) {
		var view = this.view;
		var generalName; // like "cellHtml"
		var specificName; // like "dayCellHtml". based on rowType
		var provider; // either the View or the RowRenderer subclass, whichever provided the method
		var renderer;

		generalName = rendererName + 'Html';
		if (rowType) {
			specificName = rowType + capitaliseFirstLetter(rendererName) + 'Html';
		}

		if (specificName && (renderer = view[specificName])) {
			provider = view;
		}
		else if (specificName && (renderer = this[specificName])) {
			provider = this;
		}
		else if ((renderer = view[generalName])) {
			provider = view;
		}
		else if ((renderer = this[generalName])) {
			provider = this;
		}

		if (typeof renderer === 'function') {
			return function(row) {
				return renderer.apply(provider, arguments) || ''; // use correct `this` and always return a string
			};
		}

		// the rendered can be a plain string as well. if not specified, always an empty string.
		return function() {
			return renderer || '';
		};
	}

};

;;

/* An abstract class comprised of a "grid" of cells that each represent a specific datetime
----------------------------------------------------------------------------------------------------------------------*/

function Grid(view) {
	RowRenderer.call(this, view); // call the super-constructor
	this.coordMap = new GridCoordMap(this);
}


Grid.prototype = createObject(RowRenderer.prototype); // declare the super-class
$.extend(Grid.prototype, {

	el: null, // the containing element
	coordMap: null, // a GridCoordMap that converts pixel values to datetimes
	cellDuration: null, // a cell's duration. subclasses must assign this ASAP


	// Renders the grid into the `el` element.
	// Subclasses should override and call this super-method when done.
	render: function() {
		this.bindHandlers();
	},


	// Called when the grid's resources need to be cleaned up
	destroy: function() {
		// subclasses can implement
	},


	/* Coordinates & Cells
	------------------------------------------------------------------------------------------------------------------*/


	// Populates the given empty arrays with the y and x coordinates of the cells
	buildCoords: function(rows, cols) {
		// subclasses must implement
	},


	// Given a cell object, returns the date for that cell
	getCellDate: function(cell) {
		// subclasses must implement
	},


	// Given a cell object, returns the element that represents the cell's whole-day
	getCellDayEl: function(cell) {
		// subclasses must implement
	},


	// Converts a range with an inclusive `start` and an exclusive `end` into an array of segment objects
	rangeToSegs: function(start, end) {
		// subclasses must implement
	},


	/* Handlers
	------------------------------------------------------------------------------------------------------------------*/


	// Attach handlers to `this.el`, using bubbling to listen to all ancestors.
	// We don't need to undo any of this in a "destroy" method, because the view will simply remove `this.el` from the
	// DOM and jQuery will be smart enough to garbage collect the handlers.
	bindHandlers: function() {
		var _this = this;

		this.el.on('mousedown', function(ev) {
			if (
				!$(ev.target).is('.fc-event-container *, .fc-more') && // not an an event element, or "more.." link
				!$(ev.target).closest('.fc-popover').length // not on a popover (like the "more.." events one)
			) {
				_this.dayMousedown(ev);
			}
		});

		this.bindSegHandlers(); // attach event-element-related handlers. in Grid.events.js
	},


	// Process a mousedown on an element that represents a day. For day clicking and selecting.
	dayMousedown: function(ev) {
		var _this = this;
		var view = this.view;
		var isSelectable = view.opt('selectable');
		var dates = null; // the inclusive dates of the selection. will be null if no selection
		var start; // the inclusive start of the selection
		var end; // the *exclusive* end of the selection
		var dayEl;

		// this listener tracks a mousedown on a day element, and a subsequent drag.
		// if the drag ends on the same day, it is a 'dayClick'.
		// if 'selectable' is enabled, this listener also detects selections.
		var dragListener = new DragListener(this.coordMap, {
			//distance: 5, // needs more work if we want dayClick to fire correctly
			scroll: view.opt('dragScroll'),
			dragStart: function() {
				view.unselect(); // since we could be rendering a new selection, we want to clear any old one
			},
			cellOver: function(cell, date) {
				if (dragListener.origDate) { // click needs to have started on a cell

					dayEl = _this.getCellDayEl(cell);

					dates = [ date, dragListener.origDate ].sort(dateCompare);
					start = dates[0];
					end = dates[1].clone().add(_this.cellDuration);

					if (isSelectable) {
						_this.renderSelection(start, end);
					}
				}
			},
			cellOut: function(cell, date) {
				dates = null;
				_this.destroySelection();
			},
			listenStop: function(ev) {
				if (dates) { // started and ended on a cell?
					if (dates[0].isSame(dates[1])) {
						view.trigger('dayClick', dayEl[0], start, ev);
					}
					if (isSelectable) {
						// the selection will already have been rendered. just report it
						view.reportSelection(start, end, ev);
					}
				}
			}
		});

		dragListener.mousedown(ev); // start listening, which will eventually initiate a dragStart
	},


	/* Event Dragging
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of a event being dragged over the given date(s).
	// `end` can be null, as well as `seg`. See View's documentation on renderDrag for more info.
	// A returned value of `true` signals that a mock "helper" event has been rendered.
	renderDrag: function(start, end, seg) {
		// subclasses must implement
	},


	// Unrenders a visual indication of an event being dragged
	destroyDrag: function() {
		// subclasses must implement
	},


	/* Event Resizing
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event being resized.
	// `start` and `end` are the updated dates of the event. `seg` is the original segment object involved in the drag.
	renderResize: function(start, end, seg) {
		// subclasses must implement
	},


	// Unrenders a visual indication of an event being resized.
	destroyResize: function() {
		// subclasses must implement
	},


	/* Event Helper
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a mock event over the given date(s).
	// `end` can be null, in which case the mock event that is rendered will have a null end time.
	// `sourceSeg` is the internal segment object involved in the drag. If null, something external is dragging.
	renderRangeHelper: function(start, end, sourceSeg) {
		var view = this.view;
		var fakeEvent;

		// compute the end time if forced to do so (this is what EventManager does)
		if (!end && view.opt('forceEventDuration')) {
			end = view.calendar.getDefaultEventEnd(!start.hasTime(), start);
		}

		fakeEvent = sourceSeg ? createObject(sourceSeg.event) : {}; // mask the original event object if possible
		fakeEvent.start = start;
		fakeEvent.end = end;
		fakeEvent.allDay = !(start.hasTime() || (end && end.hasTime())); // freshly compute allDay

		// this extra className will be useful for differentiating real events from mock events in CSS
		fakeEvent.className = (fakeEvent.className || []).concat('fc-helper');

		// if something external is being dragged in, don't render a resizer
		if (!sourceSeg) {
			fakeEvent.editable = false;
		}

		this.renderHelper(fakeEvent, sourceSeg); // do the actual rendering
	},


	// Renders a mock event
	renderHelper: function(event, sourceSeg) {
		// subclasses must implement
	},


	// Unrenders a mock event
	destroyHelper: function() {
		// subclasses must implement
	},


	/* Selection
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of a selection. Will highlight by default but can be overridden by subclasses.
	renderSelection: function(start, end) {
		this.renderHighlight(start, end);
	},


	// Unrenders any visual indications of a selection. Will unrender a highlight by default.
	destroySelection: function() {
		this.destroyHighlight();
	},


	/* Highlight
	------------------------------------------------------------------------------------------------------------------*/


	// Puts visual emphasis on a certain date range
	renderHighlight: function(start, end) {
		// subclasses should implement
	},


	// Removes visual emphasis on a date range
	destroyHighlight: function() {
		// subclasses should implement
	},



	/* Generic rendering utilities for subclasses
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a day-of-week header row
	headHtml: function() {
		return '' +
			'<div class="fc-row ' + this.view.widgetHeaderClass + '">' +
				'<table>' +
					'<thead>' +
						this.rowHtml('head') + // leverages RowRenderer
					'</thead>' +
				'</table>' +
			'</div>';
	},


	// Used by the `headHtml` method, via RowRenderer, for rendering the HTML of a day-of-week header cell
	headCellHtml: function(row, col, date) {
		var view = this.view;
		var calendar = view.calendar;
		var colFormat = view.opt('columnFormat');

		return '' +
			'<th class="fc-day-header ' + view.widgetHeaderClass + ' fc-' + dayIDs[date.day()] + '">' +
				htmlEscape(calendar.formatDate(date, colFormat)) +
			'</th>';
	},


	// Renders the HTML for a single-day background cell
	bgCellHtml: function(row, col, date) {
		var view = this.view;
		var classes = this.getDayClasses(date);

		classes.unshift('fc-day', view.widgetContentClass);

		return '<td class="' + classes.join(' ') + '" data-date="' + date.format() + '"></td>';
	},


	// Computes HTML classNames for a single-day cell
	getDayClasses: function(date) {
		var view = this.view;
		var today = view.calendar.getNow().stripTime();
		var classes = [ 'fc-' + dayIDs[date.day()] ];

		if (
			view.name === 'month' &&
			date.month() != view.intervalStart.month()
		) {
			classes.push('fc-other-month');
		}

		if (date.isSame(today, 'day')) {
			classes.push(
				'fc-today',
				view.highlightStateClass
			);
		}
		else if (date < today) {
			classes.push('fc-past');
		}
		else {
			classes.push('fc-future');
		}

		return classes;
	}

});

;;

/* Event-rendering and event-interaction methods for the abstract Grid class
----------------------------------------------------------------------------------------------------------------------*/

$.extend(Grid.prototype, {

	mousedOverSeg: null, // the segment object the user's mouse is over. null if over nothing
	isDraggingSeg: false, // is a segment being dragged? boolean
	isResizingSeg: false, // is a segment being resized? boolean


	// Renders the given events onto the grid
	renderEvents: function(events) {
		// subclasses must implement
	},


	// Retrieves all rendered segment objects in this grid
	getSegs: function() {
		// subclasses must implement
	},


	// Unrenders all events. Subclasses should implement, calling this super-method first.
	destroyEvents: function() {
		this.triggerSegMouseout(); // trigger an eventMouseout if user's mouse is over an event
	},


	// Renders a `el` property for each seg, and only returns segments that successfully rendered
	renderSegs: function(segs, disableResizing) {
		var view = this.view;
		var html = '';
		var renderedSegs = [];
		var i;

		// build a large concatenation of event segment HTML
		for (i = 0; i < segs.length; i++) {
			html += this.renderSegHtml(segs[i], disableResizing);
		}

		// Grab individual elements from the combined HTML string. Use each as the default rendering.
		// Then, compute the 'el' for each segment. An el might be null if the eventRender callback returned false.
		$(html).each(function(i, node) {
			var seg = segs[i];
			var el = view.resolveEventEl(seg.event, $(node));
			if (el) {
				el.data('fc-seg', seg); // used by handlers
				seg.el = el;
				renderedSegs.push(seg);
			}
		});

		return renderedSegs;
	},


	// Generates the HTML for the default rendering of a segment
	renderSegHtml: function(seg, disableResizing) {
		// subclasses must implement
	},


	// Converts an array of event objects into an array of segment objects
	eventsToSegs: function(events, intervalStart, intervalEnd) {
		var _this = this;

		return $.map(events, function(event) {
			return _this.eventToSegs(event, intervalStart, intervalEnd); // $.map flattens all returned arrays together
		});
	},


	// Slices a single event into an array of event segments.
	// When `intervalStart` and `intervalEnd` are specified, intersect the events with that interval.
	// Otherwise, let the subclass decide how it wants to slice the segments over the grid.
	eventToSegs: function(event, intervalStart, intervalEnd) {
		var eventStart = event.start.clone().stripZone(); // normalize
		var eventEnd = this.view.calendar.getEventEnd(event).stripZone(); // compute (if necessary) and normalize
		var segs;
		var i, seg;

		if (intervalStart && intervalEnd) {
			seg = intersectionToSeg(eventStart, eventEnd, intervalStart, intervalEnd);
			segs = seg ? [ seg ] : [];
		}
		else {
			segs = this.rangeToSegs(eventStart, eventEnd); // defined by the subclass
		}

		// assign extra event-related properties to the segment objects
		for (i = 0; i < segs.length; i++) {
			seg = segs[i];
			seg.event = event;
			seg.eventStartMS = +eventStart;
			seg.eventDurationMS = eventEnd - eventStart;
		}

		return segs;
	},


	/* Handlers
	------------------------------------------------------------------------------------------------------------------*/


	// Attaches event-element-related handlers to the container element and leverage bubbling
	bindSegHandlers: function() {
		var _this = this;
		var view = this.view;

		$.each(
			{
				mouseenter: function(seg, ev) {
					_this.triggerSegMouseover(seg, ev);
				},
				mouseleave: function(seg, ev) {
					_this.triggerSegMouseout(seg, ev);
				},
				click: function(seg, ev) {
					return view.trigger('eventClick', this, seg.event, ev); // can return `false` to cancel
				},
				mousedown: function(seg, ev) {
					if ($(ev.target).is('.fc-resizer') && view.isEventResizable(seg.event)) {
						_this.segResizeMousedown(seg, ev);
					}
					else if (view.isEventDraggable(seg.event)) {
						_this.segDragMousedown(seg, ev);
					}
				}
			},
			function(name, func) {
				// attach the handler to the container element and only listen for real event elements via bubbling
				_this.el.on(name, '.fc-event-container > *', function(ev) {
					var seg = $(this).data('fc-seg'); // grab segment data. put there by View::renderEvents

					// only call the handlers if there is not a drag/resize in progress
					if (seg && !_this.isDraggingSeg && !_this.isResizingSeg) {
						return func.call(this, seg, ev); // `this` will be the event element
					}
				});
			}
		);
	},


	// Updates internal state and triggers handlers for when an event element is moused over
	triggerSegMouseover: function(seg, ev) {
		if (!this.mousedOverSeg) {
			this.mousedOverSeg = seg;
			this.view.trigger('eventMouseover', seg.el[0], seg.event, ev);
		}
	},


	// Updates internal state and triggers handlers for when an event element is moused out.
	// Can be given no arguments, in which case it will mouseout the segment that was previously moused over.
	triggerSegMouseout: function(seg, ev) {
		ev = ev || {}; // if given no args, make a mock mouse event

		if (this.mousedOverSeg) {
			seg = seg || this.mousedOverSeg; // if given no args, use the currently moused-over segment
			this.mousedOverSeg = null;
			this.view.trigger('eventMouseout', seg.el[0], seg.event, ev);
		}
	},


	/* Dragging
	------------------------------------------------------------------------------------------------------------------*/


	// Called when the user does a mousedown on an event, which might lead to dragging.
	// Generic enough to work with any type of Grid.
	segDragMousedown: function(seg, ev) {
		var _this = this;
		var view = this.view;
		var el = seg.el;
		var event = seg.event;
		var newStart, newEnd;

		// A clone of the original element that will move with the mouse
		var mouseFollower = new MouseFollower(seg.el, {
			parentEl: view.el,
			opacity: view.opt('dragOpacity'),
			revertDuration: view.opt('dragRevertDuration'),
			zIndex: 2 // one above the .fc-view
		});

		// Tracks mouse movement over the *view's* coordinate map. Allows dragging and dropping between subcomponents
		// of the view.
		var dragListener = new DragListener(view.coordMap, {
			distance: 5,
			scroll: view.opt('dragScroll'),
			listenStart: function(ev) {
				mouseFollower.hide(); // don't show until we know this is a real drag
				mouseFollower.start(ev);
			},
			dragStart: function(ev) {
				_this.triggerSegMouseout(seg, ev); // ensure a mouseout on the manipulated event has been reported
				_this.isDraggingSeg = true;
				view.hideEvent(event); // hide all event segments. our mouseFollower will take over
				view.trigger('eventDragStart', el[0], event, ev, {}); // last argument is jqui dummy
			},
			cellOver: function(cell, date) {
				var origDate = seg.cellDate || dragListener.origDate;
				var res = _this.computeDraggedEventDates(seg, origDate, date);
				newStart = res.start;
				newEnd = res.end;

				if (view.renderDrag(newStart, newEnd, seg)) { // have the view render a visual indication
					mouseFollower.hide(); // if the view is already using a mock event "helper", hide our own
				}
				else {
					mouseFollower.show();
				}
			},
			cellOut: function() { // called before mouse moves to a different cell OR moved out of all cells
				newStart = null;
				view.destroyDrag(); // unrender whatever was done in view.renderDrag
				mouseFollower.show(); // show in case we are moving out of all cells
			},
			dragStop: function(ev) {
				var hasChanged = newStart && !newStart.isSame(event.start);

				// do revert animation if hasn't changed. calls a callback when finished (whether animation or not)
				mouseFollower.stop(!hasChanged, function() {
					_this.isDraggingSeg = false;
					view.destroyDrag();
					view.showEvent(event);
					view.trigger('eventDragStop', el[0], event, ev, {}); // last argument is jqui dummy

					if (hasChanged) {
						view.eventDrop(el[0], event, newStart, ev); // will rerender all events...
					}
				});
			},
			listenStop: function() {
				mouseFollower.stop(); // put in listenStop in case there was a mousedown but the drag never started
			}
		});

		dragListener.mousedown(ev); // start listening, which will eventually lead to a dragStart
	},


	// Given a segment, the dates where a drag began and ended, calculates the Event Object's new start and end dates
	computeDraggedEventDates: function(seg, dragStartDate, dropDate) {
		var view = this.view;
		var event = seg.event;
		var start = event.start;
		var end = view.calendar.getEventEnd(event);
		var delta;
		var newStart;
		var newEnd;

		if (dropDate.hasTime() === dragStartDate.hasTime()) {
			delta = dayishDiff(dropDate, dragStartDate);
			newStart = start.clone().add(delta);
			if (event.end === null) { // do we need to compute an end?
				newEnd = null;
			}
			else {
				newEnd = end.clone().add(delta);
			}
		}
		else {
			// if switching from day <-> timed, start should be reset to the dropped date, and the end cleared
			newStart = dropDate;
			newEnd = null; // end should be cleared
		}

		return { start: newStart, end: newEnd };
	},


	/* Resizing
	------------------------------------------------------------------------------------------------------------------*/


	// Called when the user does a mousedown on an event's resizer, which might lead to resizing.
	// Generic enough to work with any type of Grid.
	segResizeMousedown: function(seg, ev) {
		var _this = this;
		var view = this.view;
		var el = seg.el;
		var event = seg.event;
		var start = event.start;
		var end = view.calendar.getEventEnd(event);
		var newEnd = null;
		var dragListener;

		function destroy() { // resets the rendering
			_this.destroyResize();
			view.showEvent(event);
		}

		// Tracks mouse movement over the *grid's* coordinate map
		dragListener = new DragListener(this.coordMap, {
			distance: 5,
			scroll: view.opt('dragScroll'),
			dragStart: function(ev) {
				_this.triggerSegMouseout(seg, ev); // ensure a mouseout on the manipulated event has been reported
				_this.isResizingSeg = true;
				view.trigger('eventResizeStart', el[0], event, ev, {}); // last argument is jqui dummy
			},
			cellOver: function(cell, date) {
				// compute the new end. don't allow it to go before the event's start
				if (date.isBefore(start)) { // allows comparing ambig to non-ambig
					date = start;
				}
				newEnd = date.clone().add(_this.cellDuration); // make it an exclusive end

				if (newEnd.isSame(end)) {
					newEnd = null;
					destroy();
				}
				else {
					_this.renderResize(start, newEnd, seg);
					view.hideEvent(event);
				}
			},
			cellOut: function() { // called before mouse moves to a different cell OR moved out of all cells
				newEnd = null;
				destroy();
			},
			dragStop: function(ev) {
				_this.isResizingSeg = false;
				destroy();
				view.trigger('eventResizeStop', el[0], event, ev, {}); // last argument is jqui dummy

				if (newEnd) {
					view.eventResize(el[0], event, newEnd, ev); // will rerender all events...
				}
			}
		});

		dragListener.mousedown(ev); // start listening, which will eventually lead to a dragStart
	},


	/* Rendering Utils
	------------------------------------------------------------------------------------------------------------------*/


	// Generic utility for generating the HTML classNames for an event segment's element
	getSegClasses: function(seg, isDraggable, isResizable) {
		var event = seg.event;
		var classes = [
			'fc-event',
			seg.isStart ? 'fc-start' : 'fc-not-start',
			seg.isEnd ? 'fc-end' : 'fc-not-end'
		].concat(
			event.className,
			event.source ? event.source.className : []
		);

		if (isDraggable) {
			classes.push('fc-draggable');
		}
		if (isResizable) {
			classes.push('fc-resizable');
		}

		return classes;
	},


	// Utility for generating a CSS string with all the event skin-related properties
	getEventSkinCss: function(event) {
		var view = this.view;
		var source = event.source || {};
		var eventColor = event.color;
		var sourceColor = source.color;
		var optionColor = view.opt('eventColor');
		var backgroundColor =
			event.backgroundColor ||
			eventColor ||
			source.backgroundColor ||
			sourceColor ||
			view.opt('eventBackgroundColor') ||
			optionColor;
		var borderColor =
			event.borderColor ||
			eventColor ||
			source.borderColor ||
			sourceColor ||
			view.opt('eventBorderColor') ||
			optionColor;
		var textColor =
			event.textColor ||
			source.textColor ||
			view.opt('eventTextColor');
		var statements = [];
		if (backgroundColor) {
			statements.push('background-color:' + backgroundColor);
		}
		if (borderColor) {
			statements.push('border-color:' + borderColor);
		}
		if (textColor) {
			statements.push('color:' + textColor);
		}
		return statements.join(';');
	}

});


/* Event Segment Utilities
----------------------------------------------------------------------------------------------------------------------*/


// A cmp function for determining which segments should take visual priority
function compareSegs(seg1, seg2) {
	return seg1.eventStartMS - seg2.eventStartMS || // earlier events go first
		seg2.eventDurationMS - seg1.eventDurationMS || // tie? longer events go first
		seg2.event.allDay - seg1.event.allDay || // tie? put all-day events first (booleans cast to 0/1)
		(seg1.event.title || '').localeCompare(seg2.event.title); // tie? alphabetically by title
}


;;

/* A component that renders a grid of whole-days that runs horizontally. There can be multiple rows, one per week.
----------------------------------------------------------------------------------------------------------------------*/

function DayGrid(view) {
	Grid.call(this, view); // call the super-constructor
}


DayGrid.prototype = createObject(Grid.prototype); // declare the super-class
$.extend(DayGrid.prototype, {

	numbersVisible: false, // should render a row for day/week numbers? manually set by the view
	cellDuration: moment.duration({ days: 1 }), // required for Grid.event.js. Each cell is always a single day
	bottomCoordPadding: 0, // hack for extending the hit area for the last row of the coordinate grid

	rowEls: null, // set of fake row elements
	dayEls: null, // set of whole-day elements comprising the row's background
	helperEls: null, // set of cell skeleton elements for rendering the mock event "helper"
	highlightEls: null, // set of cell skeleton elements for rendering the highlight


	// Renders the rows and columns into the component's `this.el`, which should already be assigned.
	// isRigid determins whether the individual rows should ignore the contents and be a constant height.
	// Relies on the view's colCnt and rowCnt. In the future, this component should probably be self-sufficient.
	render: function(isRigid) {
		var view = this.view;
		var html = '';
		var row;

		for (row = 0; row < view.rowCnt; row++) {
			html += this.dayRowHtml(row, isRigid);
		}
		this.el.html(html);

		this.rowEls = this.el.find('.fc-row');
		this.dayEls = this.el.find('.fc-day');

		// run all the day cells through the dayRender callback
		this.dayEls.each(function(i, node) {
			var date = view.cellToDate(Math.floor(i / view.colCnt), i % view.colCnt);
			view.trigger('dayRender', null, date, $(node));
		});

		Grid.prototype.render.call(this); // call the super-method
	},


	destroy: function() {
		this.destroySegPopover();
	},


	// Generates the HTML for a single row. `row` is the row number.
	dayRowHtml: function(row, isRigid) {
		var view = this.view;
		var classes = [ 'fc-row', 'fc-week', view.widgetContentClass ];

		if (isRigid) {
			classes.push('fc-rigid');
		}

		return '' +
			'<div class="' + classes.join(' ') + '">' +
				'<div class="fc-bg">' +
					'<table>' +
						this.rowHtml('day', row) + // leverages RowRenderer. calls dayCellHtml()
					'</table>' +
				'</div>' +
				'<div class="fc-content-skeleton">' +
					'<table>' +
						(this.numbersVisible ?
							'<thead>' +
								this.rowHtml('number', row) + // leverages RowRenderer. View will define render method
							'</thead>' :
							''
							) +
					'</table>' +
				'</div>' +
			'</div>';
	},


	// Renders the HTML for a whole-day cell. Will eventually end up in the day-row's background.
	// We go through a 'day' row type instead of just doing a 'bg' row type so that the View can do custom rendering
	// specifically for whole-day rows, whereas a 'bg' might also be used for other purposes (TimeGrid bg for example).
	dayCellHtml: function(row, col, date) {
		return this.bgCellHtml(row, col, date);
	},


	/* Coordinates & Cells
	------------------------------------------------------------------------------------------------------------------*/


	// Populates the empty `rows` and `cols` arrays with coordinates of the cells. For CoordGrid.
	buildCoords: function(rows, cols) {
		var colCnt = this.view.colCnt;
		var e, n, p;

		this.dayEls.slice(0, colCnt).each(function(i, _e) { // iterate the first row of day elements
			e = $(_e);
			n = e.offset().left;
			if (i) {
				p[1] = n;
			}
			p = [ n ];
			cols[i] = p;
		});
		p[1] = n + e.outerWidth();

		this.rowEls.each(function(i, _e) {
			e = $(_e);
			n = e.offset().top;
			if (i) {
				p[1] = n;
			}
			p = [ n ];
			rows[i] = p;
		});
		p[1] = n + e.outerHeight() + this.bottomCoordPadding; // hack to extend hit area of last row
	},


	// Converts a cell to a date
	getCellDate: function(cell) {
		return this.view.cellToDate(cell); // leverages the View's cell system
	},


	// Gets the whole-day element associated with the cell
	getCellDayEl: function(cell) {
		return this.dayEls.eq(cell.row * this.view.colCnt + cell.col);
	},


	// Converts a range with an inclusive `start` and an exclusive `end` into an array of segment objects
	rangeToSegs: function(start, end) {
		return this.view.rangeToSegments(start, end); // leverages the View's cell system
	},


	/* Event Drag Visualization
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event hovering over the given date(s).
	// `end` can be null, as well as `seg`. See View's documentation on renderDrag for more info.
	// A returned value of `true` signals that a mock "helper" event has been rendered.
	renderDrag: function(start, end, seg) {
		var opacity;

		// always render a highlight underneath
		this.renderHighlight(
			start,
			end || this.view.calendar.getDefaultEventEnd(true, start)
		);

		// if a segment from the same calendar but another component is being dragged, render a helper event
		if (seg && !seg.el.closest(this.el).length) {

			this.renderRangeHelper(start, end, seg);

			opacity = this.view.opt('dragOpacity');
			if (opacity !== undefined) {
				this.helperEls.css('opacity', opacity);
			}

			return true; // a helper has been rendered
		}
	},


	// Unrenders any visual indication of a hovering event
	destroyDrag: function() {
		this.destroyHighlight();
		this.destroyHelper();
	},


	/* Event Resize Visualization
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event being resized
	renderResize: function(start, end, seg) {
		this.renderHighlight(start, end);
		this.renderRangeHelper(start, end, seg);
	},


	// Unrenders a visual indication of an event being resized
	destroyResize: function() {
		this.destroyHighlight();
		this.destroyHelper();
	},


	/* Event Helper
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a mock "helper" event. `sourceSeg` is the associated internal segment object. It can be null.
	renderHelper: function(event, sourceSeg) {
		var helperNodes = [];
		var rowStructs = this.renderEventRows([ event ]);

		// inject each new event skeleton into each associated row
		this.rowEls.each(function(row, rowNode) {
			var rowEl = $(rowNode); // the .fc-row
			var skeletonEl = $('<div class="fc-helper-skeleton"><table/></div>'); // will be absolutely positioned
			var skeletonTop;

			// If there is an original segment, match the top position. Otherwise, put it at the row's top level
			if (sourceSeg && sourceSeg.row === row) {
				skeletonTop = sourceSeg.el.position().top;
			}
			else {
				skeletonTop = rowEl.find('.fc-content-skeleton tbody').position().top;
			}

			skeletonEl.css('top', skeletonTop)
				.find('table')
					.append(rowStructs[row].tbodyEl);

			rowEl.append(skeletonEl);
			helperNodes.push(skeletonEl[0]);
		});

		this.helperEls = $(helperNodes); // array -> jQuery set
	},


	// Unrenders any visual indication of a mock helper event
	destroyHelper: function() {
		if (this.helperEls) {
			this.helperEls.remove();
			this.helperEls = null;
		}
	},


	/* Highlighting
	------------------------------------------------------------------------------------------------------------------*/


	// Renders an emphasis on the given date range. `start` is an inclusive, `end` is exclusive.
	renderHighlight: function(start, end) {
		var segs = this.rangeToSegs(start, end);
		var highlightNodes = [];
		var i, seg;
		var el;

		// build an event skeleton for each row that needs it
		for (i = 0; i < segs.length; i++) {
			seg = segs[i];
			el = $(
				this.highlightSkeletonHtml(seg.leftCol, seg.rightCol + 1) // make end exclusive
			);
			el.appendTo(this.rowEls[seg.row]);
			highlightNodes.push(el[0]);
		}

		this.highlightEls = $(highlightNodes); // array -> jQuery set
	},


	// Unrenders any visual emphasis on a date range
	destroyHighlight: function() {
		if (this.highlightEls) {
			this.highlightEls.remove();
			this.highlightEls = null;
		}
	},


	// Generates the HTML used to build a single-row "highlight skeleton", a table that frames highlight cells
	highlightSkeletonHtml: function(startCol, endCol) {
		var colCnt = this.view.colCnt;
		var cellHtml = '';

		if (startCol > 0) {
			cellHtml += '<td colspan="' + startCol + '"/>';
		}
		if (endCol > startCol) {
			cellHtml += '<td colspan="' + (endCol - startCol) + '" class="fc-highlight" />';
		}
		if (colCnt > endCol) {
			cellHtml += '<td colspan="' + (colCnt - endCol) + '"/>';
		}

		cellHtml = this.bookendCells(cellHtml, 'highlight');

		return '' +
			'<div class="fc-highlight-skeleton">' +
				'<table>' +
					'<tr>' +
						cellHtml +
					'</tr>' +
				'</table>' +
			'</div>';
	}

});

;;

/* Event-rendering methods for the DayGrid class
----------------------------------------------------------------------------------------------------------------------*/

$.extend(DayGrid.prototype, {

	segs: null,
	rowStructs: null, // an array of objects, each holding information about a row's event-rendering


	// Render the given events onto the Grid and return the rendered segments
	renderEvents: function(events) {
		var rowStructs = this.rowStructs = this.renderEventRows(events);
		var segs = [];

		// append to each row's content skeleton
		this.rowEls.each(function(i, rowNode) {
			$(rowNode).find('.fc-content-skeleton > table').append(
				rowStructs[i].tbodyEl
			);
			segs.push.apply(segs, rowStructs[i].segs);
		});

		this.segs = segs;
	},


	// Retrieves all segment objects that have been rendered
	getSegs: function() {
		return (this.segs || []).concat(
			this.popoverSegs || [] // segs rendered in the "more" events popover
		);
	},


	// Removes all rendered event elements
	destroyEvents: function() {
		var rowStructs;
		var rowStruct;

		Grid.prototype.destroyEvents.call(this); // call the super-method

		rowStructs = this.rowStructs || [];
		while ((rowStruct = rowStructs.pop())) {
			rowStruct.tbodyEl.remove();
		}

		this.segs = null;
		this.destroySegPopover(); // removes the "more.." events popover
	},


	// Uses the given events array to generate <tbody> elements that should be appended to each row's content skeleton.
	// Returns an array of rowStruct objects (see the bottom of `renderEventRow`).
	renderEventRows: function(events) {
		var segs = this.eventsToSegs(events);
		var rowStructs = [];
		var segRows;
		var row;

		segs = this.renderSegs(segs); // returns a new array with only visible segments
		segRows = this.groupSegRows(segs); // group into nested arrays

		// iterate each row of segment groupings
		for (row = 0; row < segRows.length; row++) {
			rowStructs.push(
				this.renderEventRow(row, segRows[row])
			);
		}

		return rowStructs;
	},


	// Builds the HTML to be used for the default element for an individual segment
	renderSegHtml: function(seg, disableResizing) {
		var view = this.view;
		var isRTL = view.opt('isRTL');
		var event = seg.event;
		var isDraggable = view.isEventDraggable(event);
		var isResizable = !disableResizing && event.allDay && seg.isEnd && view.isEventResizable(event);
		var classes = this.getSegClasses(seg, isDraggable, isResizable);
		var skinCss = this.getEventSkinCss(event);
		var timeHtml = '';
		var titleHtml;

		classes.unshift('fc-day-grid-event');

		// Only display a timed events time if it is the starting segment
		if (!event.allDay && seg.isStart) {
			timeHtml = '<span class="fc-time">' + htmlEscape(view.getEventTimeText(event)) + '</span>';
		}

		titleHtml =
			'<span class="fc-title">' +
				(htmlEscape(event.title || '') || '&nbsp;') + // we always want one line of height
			'</span>';
		
		return '<a class="' + classes.join(' ') + '"' +
				(event.url ?
					' href="' + htmlEscape(event.url) + '"' :
					''
					) +
				(skinCss ?
					' style="' + skinCss + '"' :
					''
					) +
			'>' +
				'<div class="fc-content">' +
					(isRTL ?
						titleHtml + ' ' + timeHtml : // put a natural space in between
						timeHtml + ' ' + titleHtml   //
						) +
				'</div>' +
				(isResizable ?
					'<div class="fc-resizer"/>' :
					''
					) +
			'</a>';
	},


	// Given a row # and an array of segments all in the same row, render a <tbody> element, a skeleton that contains
	// the segments. Returns object with a bunch of internal data about how the render was calculated.
	renderEventRow: function(row, rowSegs) {
		var view = this.view;
		var colCnt = view.colCnt;
		var segLevels = this.buildSegLevels(rowSegs); // group into sub-arrays of levels
		var levelCnt = Math.max(1, segLevels.length); // ensure at least one level
		var tbody = $('<tbody/>');
		var segMatrix = []; // lookup for which segments are rendered into which level+col cells
		var cellMatrix = []; // lookup for all <td> elements of the level+col matrix
		var loneCellMatrix = []; // lookup for <td> elements that only take up a single column
		var i, levelSegs;
		var col;
		var tr;
		var j, seg;
		var td;

		// populates empty cells from the current column (`col`) to `endCol`
		function emptyCellsUntil(endCol) {
			while (col < endCol) {
				// try to grab a cell from the level above and extend its rowspan. otherwise, create a fresh cell
				td = (loneCellMatrix[i - 1] || [])[col];
				if (td) {
					td.attr(
						'rowspan',
						parseInt(td.attr('rowspan') || 1, 10) + 1
					);
				}
				else {
					td = $('<td/>');
					tr.append(td);
				}
				cellMatrix[i][col] = td;
				loneCellMatrix[i][col] = td;
				col++;
			}
		}

		for (i = 0; i < levelCnt; i++) { // iterate through all levels
			levelSegs = segLevels[i];
			col = 0;
			tr = $('<tr/>');

			segMatrix.push([]);
			cellMatrix.push([]);
			loneCellMatrix.push([]);

			// levelCnt might be 1 even though there are no actual levels. protect against this.
			// this single empty row is useful for styling.
			if (levelSegs) {
				for (j = 0; j < levelSegs.length; j++) { // iterate through segments in level
					seg = levelSegs[j];

					emptyCellsUntil(seg.leftCol);

					// create a container that occupies or more columns. append the event element.
					td = $('<td class="fc-event-container"/>').append(seg.el);
					if (seg.leftCol != seg.rightCol) {
						td.attr('colspan', seg.rightCol - seg.leftCol + 1);
					}
					else { // a single-column segment
						loneCellMatrix[i][col] = td;
					}

					while (col <= seg.rightCol) {
						cellMatrix[i][col] = td;
						segMatrix[i][col] = seg;
						col++;
					}

					tr.append(td);
				}
			}

			emptyCellsUntil(colCnt); // finish off the row
			this.bookendCells(tr, 'eventSkeleton');
			tbody.append(tr);
		}

		return { // a "rowStruct"
			row: row, // the row number
			tbodyEl: tbody,
			cellMatrix: cellMatrix,
			segMatrix: segMatrix,
			segLevels: segLevels,
			segs: rowSegs
		};
	},


	// Stacks a flat array of segments, which are all assumed to be in the same row, into subarrays of vertical levels.
	buildSegLevels: function(segs) {
		var levels = [];
		var i, seg;
		var j;

		// Give preference to elements with certain criteria, so they have
		// a chance to be closer to the top.
		segs.sort(compareSegs);
		
		for (i = 0; i < segs.length; i++) {
			seg = segs[i];

			// loop through levels, starting with the topmost, until the segment doesn't collide with other segments
			for (j = 0; j < levels.length; j++) {
				if (!isDaySegCollision(seg, levels[j])) {
					break;
				}
			}
			// `j` now holds the desired subrow index
			seg.level = j;

			// create new level array if needed and append segment
			(levels[j] || (levels[j] = [])).push(seg);
		}

		// order segments left-to-right. very important if calendar is RTL
		for (j = 0; j < levels.length; j++) {
			levels[j].sort(compareDaySegCols);
		}

		return levels;
	},


	// Given a flat array of segments, return an array of sub-arrays, grouped by each segment's row
	groupSegRows: function(segs) {
		var view = this.view;
		var segRows = [];
		var i;

		for (i = 0; i < view.rowCnt; i++) {
			segRows.push([]);
		}

		for (i = 0; i < segs.length; i++) {
			segRows[segs[i].row].push(segs[i]);
		}

		return segRows;
	}

});


// Computes whether two segments' columns collide. They are assumed to be in the same row.
function isDaySegCollision(seg, otherSegs) {
	var i, otherSeg;

	for (i = 0; i < otherSegs.length; i++) {
		otherSeg = otherSegs[i];

		if (
			otherSeg.leftCol <= seg.rightCol &&
			otherSeg.rightCol >= seg.leftCol
		) {
			return true;
		}
	}

	return false;
}


// A cmp function for determining the leftmost event
function compareDaySegCols(a, b) {
	return a.leftCol - b.leftCol;
}

;;

/* Methods relate to limiting the number events for a given day on a DayGrid
----------------------------------------------------------------------------------------------------------------------*/

$.extend(DayGrid.prototype, {


	segPopover: null, // the Popover that holds events that can't fit in a cell. null when not visible
	popoverSegs: null, // an array of segment objects that the segPopover holds. null when not visible


	destroySegPopover: function() {
		if (this.segPopover) {
			this.segPopover.hide(); // will trigger destruction of `segPopover` and `popoverSegs`
		}
	},


	// Limits the number of "levels" (vertically stacking layers of events) for each row of the grid.
	// `levelLimit` can be false (don't limit), a number, or true (should be computed).
	limitRows: function(levelLimit) {
		var rowStructs = this.rowStructs || [];
		var row; // row #
		var rowLevelLimit;

		for (row = 0; row < rowStructs.length; row++) {
			this.unlimitRow(row);

			if (!levelLimit) {
				rowLevelLimit = false;
			}
			else if (typeof levelLimit === 'number') {
				rowLevelLimit = levelLimit;
			}
			else {
				rowLevelLimit = this.computeRowLevelLimit(row);
			}

			if (rowLevelLimit !== false) {
				this.limitRow(row, rowLevelLimit);
			}
		}
	},


	// Computes the number of levels a row will accomodate without going outside its bounds.
	// Assumes the row is "rigid" (maintains a constant height regardless of what is inside).
	// `row` is the row number.
	computeRowLevelLimit: function(row) {
		var rowEl = this.rowEls.eq(row); // the containing "fake" row div
		var rowHeight = rowEl.height(); // TODO: cache somehow?
		var trEls = this.rowStructs[row].tbodyEl.children();
		var i, trEl;

		// Reveal one level <tr> at a time and stop when we find one out of bounds
		for (i = 0; i < trEls.length; i++) {
			trEl = trEls.eq(i).removeClass('fc-limited'); // get and reveal
			if (trEl.position().top + trEl.outerHeight() > rowHeight) {
				return i;
			}
		}

		return false; // should not limit at all
	},


	// Limits the given grid row to the maximum number of levels and injects "more" links if necessary.
	// `row` is the row number.
	// `levelLimit` is a number for the maximum (inclusive) number of levels allowed.
	limitRow: function(row, levelLimit) {
		var _this = this;
		var view = this.view;
		var rowStruct = this.rowStructs[row];
		var moreNodes = []; // array of "more" <a> links and <td> DOM nodes
		var col = 0; // col #
		var cell;
		var levelSegs; // array of segment objects in the last allowable level, ordered left-to-right
		var cellMatrix; // a matrix (by level, then column) of all <td> jQuery elements in the row
		var limitedNodes; // array of temporarily hidden level <tr> and segment <td> DOM nodes
		var i, seg;
		var segsBelow; // array of segment objects below `seg` in the current `col`
		var totalSegsBelow; // total number of segments below `seg` in any of the columns `seg` occupies
		var colSegsBelow; // array of segment arrays, below seg, one for each column (offset from segs's first column)
		var td, rowspan;
		var segMoreNodes; // array of "more" <td> cells that will stand-in for the current seg's cell
		var j;
		var moreTd, moreWrap, moreLink;

		// Iterates through empty level cells and places "more" links inside if need be
		function emptyCellsUntil(endCol) { // goes from current `col` to `endCol`
			while (col < endCol) {
				cell = { row: row, col: col };
				segsBelow = _this.getCellSegs(cell, levelLimit);
				if (segsBelow.length) {
					td = cellMatrix[levelLimit - 1][col];
					moreLink = _this.renderMoreLink(cell, segsBelow);
					moreWrap = $('<div/>').append(moreLink);
					td.append(moreWrap);
					moreNodes.push(moreWrap[0]);
				}
				col++;
			}
		}

		if (levelLimit && levelLimit < rowStruct.segLevels.length) { // is it actually over the limit?
			levelSegs = rowStruct.segLevels[levelLimit - 1];
			cellMatrix = rowStruct.cellMatrix;

			limitedNodes = rowStruct.tbodyEl.children().slice(levelLimit) // get level <tr> elements past the limit
				.addClass('fc-limited').get(); // hide elements and get a simple DOM-nodes array

			// iterate though segments in the last allowable level
			for (i = 0; i < levelSegs.length; i++) {
				seg = levelSegs[i];
				emptyCellsUntil(seg.leftCol); // process empty cells before the segment

				// determine *all* segments below `seg` that occupy the same columns
				colSegsBelow = [];
				totalSegsBelow = 0;
				while (col <= seg.rightCol) {
					cell = { row: row, col: col };
					segsBelow = this.getCellSegs(cell, levelLimit);
					colSegsBelow.push(segsBelow);
					totalSegsBelow += segsBelow.length;
					col++;
				}

				if (totalSegsBelow) { // do we need to replace this segment with one or many "more" links?
					td = cellMatrix[levelLimit - 1][seg.leftCol]; // the segment's parent cell
					rowspan = td.attr('rowspan') || 1;
					segMoreNodes = [];

					// make a replacement <td> for each column the segment occupies. will be one for each colspan
					for (j = 0; j < colSegsBelow.length; j++) {
						moreTd = $('<td class="fc-more-cell"/>').attr('rowspan', rowspan);
						segsBelow = colSegsBelow[j];
						cell = { row: row, col: seg.leftCol + j };
						moreLink = this.renderMoreLink(cell, [ seg ].concat(segsBelow)); // count seg as hidden too
						moreWrap = $('<div/>').append(moreLink);
						moreTd.append(moreWrap);
						segMoreNodes.push(moreTd[0]);
						moreNodes.push(moreTd[0]);
					}

					td.addClass('fc-limited').after($(segMoreNodes)); // hide original <td> and inject replacements
					limitedNodes.push(td[0]);
				}
			}

			emptyCellsUntil(view.colCnt); // finish off the level
			rowStruct.moreEls = $(moreNodes); // for easy undoing later
			rowStruct.limitedEls = $(limitedNodes); // for easy undoing later
		}
	},


	// Reveals all levels and removes all "more"-related elements for a grid's row.
	// `row` is a row number.
	unlimitRow: function(row) {
		var rowStruct = this.rowStructs[row];

		if (rowStruct.moreEls) {
			rowStruct.moreEls.remove();
			rowStruct.moreEls = null;
		}

		if (rowStruct.limitedEls) {
			rowStruct.limitedEls.removeClass('fc-limited');
			rowStruct.limitedEls = null;
		}
	},


	// Renders an <a> element that represents hidden event element for a cell.
	// Responsible for attaching click handler as well.
	renderMoreLink: function(cell, hiddenSegs) {
		var _this = this;
		var view = this.view;

		return $('<a class="fc-more"/>')
			.text(
				this.getMoreLinkText(hiddenSegs.length)
			)
			.on('click', function(ev) {
				var clickOption = view.opt('eventLimitClick');
				var date = view.cellToDate(cell);
				var moreEl = $(this);
				var dayEl = _this.getCellDayEl(cell);
				var allSegs = _this.getCellSegs(cell);

				// rescope the segments to be within the cell's date
				var reslicedAllSegs = _this.resliceDaySegs(allSegs, date);
				var reslicedHiddenSegs = _this.resliceDaySegs(hiddenSegs, date);

				if (typeof clickOption === 'function') {
					// the returned value can be an atomic option
					clickOption = view.trigger('eventLimitClick', null, {
						date: date,
						dayEl: dayEl,
						moreEl: moreEl,
						segs: reslicedAllSegs,
						hiddenSegs: reslicedHiddenSegs
					}, ev);
				}

				if (clickOption === 'popover') {
					_this.showSegPopover(date, cell, moreEl, reslicedAllSegs);
				}
				else if (typeof clickOption === 'string') { // a view name
					view.calendar.zoomTo(date, clickOption);
				}
			});
	},


	// Reveals the popover that displays all events within a cell
	showSegPopover: function(date, cell, moreLink, segs) {
		var _this = this;
		var view = this.view;
		var moreWrap = moreLink.parent(); // the <div> wrapper around the <a>
		var topEl; // the element we want to match the top coordinate of
		var options;

		if (view.rowCnt == 1) {
			topEl = this.view.el; // will cause the popover to cover any sort of header
		}
		else {
			topEl = this.rowEls.eq(cell.row); // will align with top of row
		}

		options = {
			className: 'fc-more-popover',
			content: this.renderSegPopoverContent(date, segs),
			parentEl: this.el,
			top: topEl.offset().top,
			autoHide: true, // when the user clicks elsewhere, hide the popover
			viewportConstrain: view.opt('popoverViewportConstrain'),
			hide: function() {
				// destroy everything when the popover is hidden
				_this.segPopover.destroy();
				_this.segPopover = null;
				_this.popoverSegs = null;
			}
		};

		// Determine horizontal coordinate.
		// We use the moreWrap instead of the <td> to avoid border confusion.
		if (view.opt('isRTL')) {
			options.right = moreWrap.offset().left + moreWrap.outerWidth() + 1; // +1 to be over cell border
		}
		else {
			options.left = moreWrap.offset().left - 1; // -1 to be over cell border
		}

		this.segPopover = new Popover(options);
		this.segPopover.show();
	},


	// Builds the inner DOM contents of the segment popover
	renderSegPopoverContent: function(date, segs) {
		var view = this.view;
		var isTheme = view.opt('theme');
		var title = date.format(view.opt('dayPopoverFormat'));
		var content = $(
			'<div class="fc-header ' + view.widgetHeaderClass + '">' +
				'<span class="fc-close ' +
					(isTheme ? 'ui-icon ui-icon-closethick' : 'fc-icon fc-icon-x') +
				'"></span>' +
				'<span class="fc-title">' +
					htmlEscape(title) +
				'</span>' +
				'<div class="fc-clear"/>' +
			'</div>' +
			'<div class="fc-body ' + view.widgetContentClass + '">' +
				'<div class="fc-event-container"></div>' +
			'</div>'
		);
		var segContainer = content.find('.fc-event-container');
		var i;

		// render each seg's `el` and only return the visible segs
		segs = this.renderSegs(segs, true); // disableResizing=true
		this.popoverSegs = segs;

		for (i = 0; i < segs.length; i++) {

			// because segments in the popover are not part of a grid coordinate system, provide a hint to any
			// grids that want to do drag-n-drop about which cell it came from
			segs[i].cellDate = date;

			segContainer.append(segs[i].el);
		}

		return content;
	},


	// Given the events within an array of segment objects, reslice them to be in a single day
	resliceDaySegs: function(segs, dayDate) {
		var events = $.map(segs, function(seg) {
			return seg.event;
		});
		var dayStart = dayDate.clone().stripTime();
		var dayEnd = dayStart.clone().add(1, 'days');

		return this.eventsToSegs(events, dayStart, dayEnd);
	},


	// Generates the text that should be inside a "more" link, given the number of events it represents
	getMoreLinkText: function(num) {
		var view = this.view;
		var opt = view.opt('eventLimitText');

		if (typeof opt === 'function') {
			return opt(num);
		}
		else {
			return '+' + num + ' ' + opt;
		}
	},


	// Returns segments within a given cell.
	// If `startLevel` is specified, returns only events including and below that level. Otherwise returns all segs.
	getCellSegs: function(cell, startLevel) {
		var segMatrix = this.rowStructs[cell.row].segMatrix;
		var level = startLevel || 0;
		var segs = [];
		var seg;

		while (level < segMatrix.length) {
			seg = segMatrix[level][cell.col];
			if (seg) {
				segs.push(seg);
			}
			level++;
		}

		return segs;
	}

});

;;

/* A component that renders one or more columns of vertical time slots
----------------------------------------------------------------------------------------------------------------------*/

function TimeGrid(view) {
	Grid.call(this, view); // call the super-constructor
}


TimeGrid.prototype = createObject(Grid.prototype); // define the super-class
$.extend(TimeGrid.prototype, {

	slotDuration: null, // duration of a "slot", a distinct time segment on given day, visualized by lines
	snapDuration: null, // granularity of time for dragging and selecting

	minTime: null, // Duration object that denotes the first visible time of any given day
	maxTime: null, // Duration object that denotes the exclusive visible end time of any given day

	dayEls: null, // cells elements in the day-row background
	slatEls: null, // elements running horizontally across all columns

	slatTops: null, // an array of top positions, relative to the container. last item holds bottom of last slot

	highlightEl: null, // cell skeleton element for rendering the highlight
	helperEl: null, // cell skeleton element for rendering the mock event "helper"


	// Renders the time grid into `this.el`, which should already be assigned.
	// Relies on the view's colCnt. In the future, this component should probably be self-sufficient.
	render: function() {
		this.processOptions();

		this.el.html(this.renderHtml());

		this.dayEls = this.el.find('.fc-day');
		this.slatEls = this.el.find('.fc-slats tr');

		this.computeSlatTops();

		Grid.prototype.render.call(this); // call the super-method
	},


	// Renders the basic HTML skeleton for the grid
	renderHtml: function() {
		return '' +
			'<div class="fc-bg">' +
				'<table>' +
					this.rowHtml('slotBg') + // leverages RowRenderer, which will call slotBgCellHtml
				'</table>' +
			'</div>' +
			'<div class="fc-slats">' +
				'<table>' +
					this.slatRowHtml() +
				'</table>' +
			'</div>';
	},


	// Renders the HTML for a vertical background cell behind the slots.
	// This method is distinct from 'bg' because we wanted a new `rowType` so the View could customize the rendering.
	slotBgCellHtml: function(row, col, date) {
		return this.bgCellHtml(row, col, date);
	},


	// Generates the HTML for the horizontal "slats" that run width-wise. Has a time axis on a side. Depends on RTL.
	slatRowHtml: function() {
		var view = this.view;
		var calendar = view.calendar;
		var isRTL = view.opt('isRTL');
		var html = '';
		var slotNormal = this.slotDuration.asMinutes() % 15 === 0;
		var slotTime = moment.duration(+this.minTime); // wish there was .clone() for durations
		var slotDate; // will be on the view's first day, but we only care about its time
		var minutes;
		var axisHtml;

		// Calculate the time for each slot
		while (slotTime < this.maxTime) {
			slotDate = view.start.clone().time(slotTime); // will be in UTC but that's good. to avoid DST issues
			minutes = slotDate.minutes();

			axisHtml =
				'<td class="fc-axis fc-time ' + view.widgetContentClass + '" ' + view.axisStyleAttr() + '>' +
					((!slotNormal || !minutes) ? // if irregular slot duration, or on the hour, then display the time
						'<span>' + // for matchCellWidths
							htmlEscape(calendar.formatDate(slotDate, view.opt('axisFormat'))) +
						'</span>' :
						''
						) +
				'</td>';

			html +=
				'<tr ' + (!minutes ? '' : 'class="fc-minor"') + '>' +
					(!isRTL ? axisHtml : '') +
					'<td class="' + view.widgetContentClass + '"/>' +
					(isRTL ? axisHtml : '') +
				"</tr>";

			slotTime.add(this.slotDuration);
		}

		return html;
	},


	// Parses various options into properties of this object
	processOptions: function() {
		var view = this.view;
		var slotDuration = view.opt('slotDuration');
		var snapDuration = view.opt('snapDuration');

		slotDuration = moment.duration(slotDuration);
		snapDuration = snapDuration ? moment.duration(snapDuration) : slotDuration;

		this.slotDuration = slotDuration;
		this.snapDuration = snapDuration;
		this.cellDuration = snapDuration; // important to assign this for Grid.events.js

		this.minTime = moment.duration(view.opt('minTime'));
		this.maxTime = moment.duration(view.opt('maxTime'));
	},


	// Slices up a date range into a segment for each column
	rangeToSegs: function(rangeStart, rangeEnd) {
		var view = this.view;
		var segs = [];
		var seg;
		var col;
		var cellDate;
		var colStart, colEnd;

		// normalize
		rangeStart = rangeStart.clone().stripZone();
		rangeEnd = rangeEnd.clone().stripZone();

		for (col = 0; col < view.colCnt; col++) {
			cellDate = view.cellToDate(0, col); // use the View's cell system for this
			colStart = cellDate.clone().time(this.minTime);
			colEnd = cellDate.clone().time(this.maxTime);
			seg = intersectionToSeg(rangeStart, rangeEnd, colStart, colEnd);
			if (seg) {
				seg.col = col;
				segs.push(seg);
			}
		}

		return segs;
	},


	/* Coordinates
	------------------------------------------------------------------------------------------------------------------*/


	// Called when there is a window resize/zoom and we need to recalculate coordinates for the grid
	resize: function() {
		this.computeSlatTops();
		this.updateSegVerticals();
	},


	// Populates the given empty `rows` and `cols` arrays with offset positions of the "snap" cells.
	// "Snap" cells are different the slots because they might have finer granularity.
	buildCoords: function(rows, cols) {
		var colCnt = this.view.colCnt;
		var originTop = this.el.offset().top;
		var snapTime = moment.duration(+this.minTime);
		var p = null;
		var e, n;

		this.dayEls.slice(0, colCnt).each(function(i, _e) {
			e = $(_e);
			n = e.offset().left;
			if (p) {
				p[1] = n;
			}
			p = [ n ];
			cols[i] = p;
		});
		p[1] = n + e.outerWidth();

		p = null;
		while (snapTime < this.maxTime) {
			n = originTop + this.computeTimeTop(snapTime);
			if (p) {
				p[1] = n;
			}
			p = [ n ];
			rows.push(p);
			snapTime.add(this.snapDuration);
		}
		p[1] = originTop + this.computeTimeTop(snapTime); // the position of the exclusive end
	},


	// Gets the datetime for the given slot cell
	getCellDate: function(cell) {
		var view = this.view;
		var calendar = view.calendar;

		return calendar.rezoneDate( // since we are adding a time, it needs to be in the calendar's timezone
			view.cellToDate(0, cell.col) // View's coord system only accounts for start-of-day for column
				.time(this.minTime + this.snapDuration * cell.row)
		);
	},


	// Gets the element that represents the whole-day the cell resides on
	getCellDayEl: function(cell) {
		return this.dayEls.eq(cell.col);
	},


	// Computes the top coordinate, relative to the bounds of the grid, of the given date.
	// A `startOfDayDate` must be given for avoiding ambiguity over how to treat midnight.
	computeDateTop: function(date, startOfDayDate) {
		return this.computeTimeTop(
			moment.duration(
				date.clone().stripZone() - startOfDayDate.clone().stripTime()
			)
		);
	},


	// Computes the top coordinate, relative to the bounds of the grid, of the given time (a Duration).
	computeTimeTop: function(time) {
		var slatCoverage = (time - this.minTime) / this.slotDuration; // floating-point value of # of slots covered
		var slatIndex;
		var slatRemainder;
		var slatTop;
		var slatBottom;

		// constrain. because minTime/maxTime might be customized
		slatCoverage = Math.max(0, slatCoverage);
		slatCoverage = Math.min(this.slatEls.length, slatCoverage);

		slatIndex = Math.floor(slatCoverage); // an integer index of the furthest whole slot
		slatRemainder = slatCoverage - slatIndex;
		slatTop = this.slatTops[slatIndex]; // the top position of the furthest whole slot

		if (slatRemainder) { // time spans part-way into the slot
			slatBottom = this.slatTops[slatIndex + 1];
			return slatTop + (slatBottom - slatTop) * slatRemainder; // part-way between slots
		}
		else {
			return slatTop;
		}
	},


	// Queries each `slatEl` for its position relative to the grid's container and stores it in `slatTops`.
	// Includes the the bottom of the last slat as the last item in the array.
	computeSlatTops: function() {
		var tops = [];
		var top;

		this.slatEls.each(function(i, node) {
			top = $(node).position().top;
			tops.push(top);
		});

		tops.push(top + this.slatEls.last().outerHeight()); // bottom of the last slat

		this.slatTops = tops;
	},


	/* Event Drag Visualization
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event being dragged over the specified date(s).
	// `end` and `seg` can be null. See View's documentation on renderDrag for more info.
	renderDrag: function(start, end, seg) {
		var opacity;

		if (seg) { // if there is event information for this drag, render a helper event
			this.renderRangeHelper(start, end, seg);

			opacity = this.view.opt('dragOpacity');
			if (opacity !== undefined) {
				this.helperEl.css('opacity', opacity);
			}

			return true; // signal that a helper has been rendered
		}
		else {
			// otherwise, just render a highlight
			this.renderHighlight(
				start,
				end || this.view.calendar.getDefaultEventEnd(false, start)
			);
		}
	},


	// Unrenders any visual indication of an event being dragged
	destroyDrag: function() {
		this.destroyHelper();
		this.destroyHighlight();
	},


	/* Event Resize Visualization
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event being resized
	renderResize: function(start, end, seg) {
		this.renderRangeHelper(start, end, seg);
	},


	// Unrenders any visual indication of an event being resized
	destroyResize: function() {
		this.destroyHelper();
	},


	/* Event Helper
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a mock "helper" event. `sourceSeg` is the original segment object and might be null (an external drag)
	renderHelper: function(event, sourceSeg) {
		var res = this.renderEventTable([ event ]);
		var tableEl = res.tableEl;
		var segs = res.segs;
		var i, seg;
		var sourceEl;

		// Try to make the segment that is in the same row as sourceSeg look the same
		for (i = 0; i < segs.length; i++) {
			seg = segs[i];
			if (sourceSeg && sourceSeg.col === seg.col) {
				sourceEl = sourceSeg.el;
				seg.el.css({
					left: sourceEl.css('left'),
					right: sourceEl.css('right'),
					'margin-left': sourceEl.css('margin-left'),
					'margin-right': sourceEl.css('margin-right')
				});
			}
		}

		this.helperEl = $('<div class="fc-helper-skeleton"/>')
			.append(tableEl)
				.appendTo(this.el);
	},


	// Unrenders any mock helper event
	destroyHelper: function() {
		if (this.helperEl) {
			this.helperEl.remove();
			this.helperEl = null;
		}
	},


	/* Selection
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of a selection. Overrides the default, which was to simply render a highlight.
	renderSelection: function(start, end) {
		if (this.view.opt('selectHelper')) { // this setting signals that a mock helper event should be rendered
			this.renderRangeHelper(start, end);
		}
		else {
			this.renderHighlight(start, end);
		}
	},


	// Unrenders any visual indication of a selection
	destroySelection: function() {
		this.destroyHelper();
		this.destroyHighlight();
	},


	/* Highlight
	------------------------------------------------------------------------------------------------------------------*/


	// Renders an emphasis on the given date range. `start` is inclusive. `end` is exclusive.
	renderHighlight: function(start, end) {
		this.highlightEl = $(
			this.highlightSkeletonHtml(start, end)
		).appendTo(this.el);
	},


	// Unrenders the emphasis on a date range
	destroyHighlight: function() {
		if (this.highlightEl) {
			this.highlightEl.remove();
			this.highlightEl = null;
		}
	},


	// Generates HTML for a table element with containers in each column, responsible for absolutely positioning the
	// highlight elements to cover the highlighted slots.
	highlightSkeletonHtml: function(start, end) {
		var view = this.view;
		var segs = this.rangeToSegs(start, end);
		var cellHtml = '';
		var col = 0;
		var i, seg;
		var dayDate;
		var top, bottom;

		for (i = 0; i < segs.length; i++) { // loop through the segments. one per column
			seg = segs[i];

			// need empty cells beforehand?
			if (col < seg.col) {
				cellHtml += '<td colspan="' + (seg.col - col) + '"/>';
				col = seg.col;
			}

			// compute vertical position
			dayDate = view.cellToDate(0, col);
			top = this.computeDateTop(seg.start, dayDate);
			bottom = this.computeDateTop(seg.end, dayDate); // the y position of the bottom edge

			// generate the cell HTML. bottom becomes negative because it needs to be a CSS value relative to the
			// bottom edge of the zero-height container.
			cellHtml +=
				'<td>' +
					'<div class="fc-highlight-container">' +
						'<div class="fc-highlight" style="top:' + top + 'px;bottom:-' + bottom + 'px"/>' +
					'</div>' +
				'</td>';

			col++;
		}

		// need empty cells after the last segment?
		if (col < view.colCnt) {
			cellHtml += '<td colspan="' + (view.colCnt - col) + '"/>';
		}

		cellHtml = this.bookendCells(cellHtml, 'highlight');

		return '' +
			'<div class="fc-highlight-skeleton">' +
				'<table>' +
					'<tr>' +
						cellHtml +
					'</tr>' +
				'</table>' +
			'</div>';
	}

});

;;

/* Event-rendering methods for the TimeGrid class
----------------------------------------------------------------------------------------------------------------------*/

$.extend(TimeGrid.prototype, {

	segs: null, // segment objects rendered in the component. null of events haven't been rendered yet
	eventSkeletonEl: null, // has cells with event-containers, which contain absolutely positioned event elements


	// Renders the events onto the grid and returns an array of segments that have been rendered
	renderEvents: function(events) {
		var res = this.renderEventTable(events);

		this.eventSkeletonEl = $('<div class="fc-content-skeleton"/>').append(res.tableEl);
		this.el.append(this.eventSkeletonEl);

		this.segs = res.segs;
	},


	// Retrieves rendered segment objects
	getSegs: function() {
		return this.segs || [];
	},


	// Removes all event segment elements from the view
	destroyEvents: function() {
		Grid.prototype.destroyEvents.call(this); // call the super-method

		if (this.eventSkeletonEl) {
			this.eventSkeletonEl.remove();
			this.eventSkeletonEl = null;
		}

		this.segs = null;
	},


	// Renders and returns the <table> portion of the event-skeleton.
	// Returns an object with properties 'tbodyEl' and 'segs'.
	renderEventTable: function(events) {
		var tableEl = $('<table><tr/></table>');
		var trEl = tableEl.find('tr');
		var segs = this.eventsToSegs(events);
		var segCols;
		var i, seg;
		var col, colSegs;
		var containerEl;

		segs = this.renderSegs(segs); // returns only the visible segs
		segCols = this.groupSegCols(segs); // group into sub-arrays, and assigns 'col' to each seg

		this.computeSegVerticals(segs); // compute and assign top/bottom

		for (col = 0; col < segCols.length; col++) { // iterate each column grouping
			colSegs = segCols[col];
			placeSlotSegs(colSegs); // compute horizontal coordinates, z-index's, and reorder the array

			containerEl = $('<div class="fc-event-container"/>');

			// assign positioning CSS and insert into container
			for (i = 0; i < colSegs.length; i++) {
				seg = colSegs[i];
				seg.el.css(this.generateSegPositionCss(seg));

				// if the height is short, add a className for alternate styling
				if (seg.bottom - seg.top < 30) {
					seg.el.addClass('fc-short');
				}

				containerEl.append(seg.el);
			}

			trEl.append($('<td/>').append(containerEl));
		}

		this.bookendCells(trEl, 'eventSkeleton');

		return  {
			tableEl: tableEl,
			segs: segs
		};
	},


	// Refreshes the CSS top/bottom coordinates for each segment element. Probably after a window resize/zoom.
	updateSegVerticals: function() {
		var segs = this.segs;
		var i;

		if (segs) {
			this.computeSegVerticals(segs);

			for (i = 0; i < segs.length; i++) {
				segs[i].el.css(
					this.generateSegVerticalCss(segs[i])
				);
			}
		}
	},


	// For each segment in an array, computes and assigns its top and bottom properties
	computeSegVerticals: function(segs) {
		var i, seg;

		for (i = 0; i < segs.length; i++) {
			seg = segs[i];
			seg.top = this.computeDateTop(seg.start, seg.start);
			seg.bottom = this.computeDateTop(seg.end, seg.start);
		}
	},


	// Renders the HTML for a single event segment's default rendering
	renderSegHtml: function(seg, disableResizing) {
		var view = this.view;
		var event = seg.event;
		var isDraggable = view.isEventDraggable(event);
		var isResizable = !disableResizing && seg.isEnd && view.isEventResizable(event);
		var classes = this.getSegClasses(seg, isDraggable, isResizable);
		var skinCss = this.getEventSkinCss(event);
		var timeText;
		var fullTimeText; // more verbose time text. for the print stylesheet
		var startTimeText; // just the start time text

		classes.unshift('fc-time-grid-event');

		if (view.isMultiDayEvent(event)) { // if the event appears to span more than one day...
			// Don't display time text on segments that run entirely through a day.
			// That would appear as midnight-midnight and would look dumb.
			// Otherwise, display the time text for the *segment's* times (like 6pm-midnight or midnight-10am)
			if (seg.isStart || seg.isEnd) {
				timeText = view.getEventTimeText(seg.start, seg.end);
				fullTimeText = view.getEventTimeText(seg.start, seg.end, 'LT');
				startTimeText = view.getEventTimeText(seg.start, null);
			}
		} else {
			// Display the normal time text for the *event's* times
			timeText = view.getEventTimeText(event);
			fullTimeText = view.getEventTimeText(event, 'LT');
			startTimeText = view.getEventTimeText(event.start, null);
		}

		return '<a class="' + classes.join(' ') + '"' +
			(event.url ?
				' href="' + htmlEscape(event.url) + '"' :
				''
				) +
			(skinCss ?
				' style="' + skinCss + '"' :
				''
				) +
			'>' +
				'<div class="fc-content">' +
					(timeText ?
						'<div class="fc-time"' +
						' data-start="' + htmlEscape(startTimeText) + '"' +
						' data-full="' + htmlEscape(fullTimeText) + '"' +
						'>' +
							'<span>' + htmlEscape(timeText) + '</span>' +
						'</div>' :
						''
						) +
					(event.title ?
						'<div class="fc-title">' +
							htmlEscape(event.title) +
						'</div>' :
						''
						) +
				'</div>' +
				'<div class="fc-bg"/>' +
				(isResizable ?
					'<div class="fc-resizer"/>' :
					''
					) +
			'</a>';
	},


	// Generates an object with CSS properties/values that should be applied to an event segment element.
	// Contains important positioning-related properties that should be applied to any event element, customized or not.
	generateSegPositionCss: function(seg) {
		var view = this.view;
		var isRTL = view.opt('isRTL');
		var shouldOverlap = view.opt('slotEventOverlap');
		var backwardCoord = seg.backwardCoord; // the left side if LTR. the right side if RTL. floating-point
		var forwardCoord = seg.forwardCoord; // the right side if LTR. the left side if RTL. floating-point
		var props = this.generateSegVerticalCss(seg); // get top/bottom first
		var left; // amount of space from left edge, a fraction of the total width
		var right; // amount of space from right edge, a fraction of the total width

		if (shouldOverlap) {
			// double the width, but don't go beyond the maximum forward coordinate (1.0)
			forwardCoord = Math.min(1, backwardCoord + (forwardCoord - backwardCoord) * 2);
		}

		if (isRTL) {
			left = 1 - forwardCoord;
			right = backwardCoord;
		}
		else {
			left = backwardCoord;
			right = 1 - forwardCoord;
		}

		props.zIndex = seg.level + 1; // convert from 0-base to 1-based
		props.left = left * 100 + '%';
		props.right = right * 100 + '%';

		if (shouldOverlap && seg.forwardPressure) {
			// add padding to the edge so that forward stacked events don't cover the resizer's icon
			props[isRTL ? 'marginLeft' : 'marginRight'] = 10 * 2; // 10 is a guesstimate of the icon's width 
		}

		return props;
	},


	// Generates an object with CSS properties for the top/bottom coordinates of a segment element
	generateSegVerticalCss: function(seg) {
		return {
			top: seg.top,
			bottom: -seg.bottom // flipped because needs to be space beyond bottom edge of event container
		};
	},


	// Given a flat array of segments, return an array of sub-arrays, grouped by each segment's col
	groupSegCols: function(segs) {
		var view = this.view;
		var segCols = [];
		var i;

		for (i = 0; i < view.colCnt; i++) {
			segCols.push([]);
		}

		for (i = 0; i < segs.length; i++) {
			segCols[segs[i].col].push(segs[i]);
		}

		return segCols;
	}

});


// Given an array of segments that are all in the same column, sets the backwardCoord and forwardCoord on each.
// Also reorders the given array by date!
function placeSlotSegs(segs) {
	var levels;
	var level0;
	var i;

	segs.sort(compareSegs); // order by date
	levels = buildSlotSegLevels(segs);
	computeForwardSlotSegs(levels);

	if ((level0 = levels[0])) {

		for (i = 0; i < level0.length; i++) {
			computeSlotSegPressures(level0[i]);
		}

		for (i = 0; i < level0.length; i++) {
			computeSlotSegCoords(level0[i], 0, 0);
		}
	}
}


// Builds an array of segments "levels". The first level will be the leftmost tier of segments if the calendar is
// left-to-right, or the rightmost if the calendar is right-to-left. Assumes the segments are already ordered by date.
function buildSlotSegLevels(segs) {
	var levels = [];
	var i, seg;
	var j;

	for (i=0; i<segs.length; i++) {
		seg = segs[i];

		// go through all the levels and stop on the first level where there are no collisions
		for (j=0; j<levels.length; j++) {
			if (!computeSlotSegCollisions(seg, levels[j]).length) {
				break;
			}
		}

		seg.level = j;

		(levels[j] || (levels[j] = [])).push(seg);
	}

	return levels;
}


// For every segment, figure out the other segments that are in subsequent
// levels that also occupy the same vertical space. Accumulate in seg.forwardSegs
function computeForwardSlotSegs(levels) {
	var i, level;
	var j, seg;
	var k;

	for (i=0; i<levels.length; i++) {
		level = levels[i];

		for (j=0; j<level.length; j++) {
			seg = level[j];

			seg.forwardSegs = [];
			for (k=i+1; k<levels.length; k++) {
				computeSlotSegCollisions(seg, levels[k], seg.forwardSegs);
			}
		}
	}
}


// Figure out which path forward (via seg.forwardSegs) results in the longest path until
// the furthest edge is reached. The number of segments in this path will be seg.forwardPressure
function computeSlotSegPressures(seg) {
	var forwardSegs = seg.forwardSegs;
	var forwardPressure = 0;
	var i, forwardSeg;

	if (seg.forwardPressure === undefined) { // not already computed

		for (i=0; i<forwardSegs.length; i++) {
			forwardSeg = forwardSegs[i];

			// figure out the child's maximum forward path
			computeSlotSegPressures(forwardSeg);

			// either use the existing maximum, or use the child's forward pressure
			// plus one (for the forwardSeg itself)
			forwardPressure = Math.max(
				forwardPressure,
				1 + forwardSeg.forwardPressure
			);
		}

		seg.forwardPressure = forwardPressure;
	}
}


// Calculate seg.forwardCoord and seg.backwardCoord for the segment, where both values range
// from 0 to 1. If the calendar is left-to-right, the seg.backwardCoord maps to "left" and
// seg.forwardCoord maps to "right" (via percentage). Vice-versa if the calendar is right-to-left.
//
// The segment might be part of a "series", which means consecutive segments with the same pressure
// who's width is unknown until an edge has been hit. `seriesBackwardPressure` is the number of
// segments behind this one in the current series, and `seriesBackwardCoord` is the starting
// coordinate of the first segment in the series.
function computeSlotSegCoords(seg, seriesBackwardPressure, seriesBackwardCoord) {
	var forwardSegs = seg.forwardSegs;
	var i;

	if (seg.forwardCoord === undefined) { // not already computed

		if (!forwardSegs.length) {

			// if there are no forward segments, this segment should butt up against the edge
			seg.forwardCoord = 1;
		}
		else {

			// sort highest pressure first
			forwardSegs.sort(compareForwardSlotSegs);

			// this segment's forwardCoord will be calculated from the backwardCoord of the
			// highest-pressure forward segment.
			computeSlotSegCoords(forwardSegs[0], seriesBackwardPressure + 1, seriesBackwardCoord);
			seg.forwardCoord = forwardSegs[0].backwardCoord;
		}

		// calculate the backwardCoord from the forwardCoord. consider the series
		seg.backwardCoord = seg.forwardCoord -
			(seg.forwardCoord - seriesBackwardCoord) / // available width for series
			(seriesBackwardPressure + 1); // # of segments in the series

		// use this segment's coordinates to computed the coordinates of the less-pressurized
		// forward segments
		for (i=0; i<forwardSegs.length; i++) {
			computeSlotSegCoords(forwardSegs[i], 0, seg.forwardCoord);
		}
	}
}


// Find all the segments in `otherSegs` that vertically collide with `seg`.
// Append into an optionally-supplied `results` array and return.
function computeSlotSegCollisions(seg, otherSegs, results) {
	results = results || [];

	for (var i=0; i<otherSegs.length; i++) {
		if (isSlotSegCollision(seg, otherSegs[i])) {
			results.push(otherSegs[i]);
		}
	}

	return results;
}


// Do these segments occupy the same vertical space?
function isSlotSegCollision(seg1, seg2) {
	return seg1.bottom > seg2.top && seg1.top < seg2.bottom;
}


// A cmp function for determining which forward segment to rely on more when computing coordinates.
function compareForwardSlotSegs(seg1, seg2) {
	// put higher-pressure first
	return seg2.forwardPressure - seg1.forwardPressure ||
		// put segments that are closer to initial edge first (and favor ones with no coords yet)
		(seg1.backwardCoord || 0) - (seg2.backwardCoord || 0) ||
		// do normal sorting...
		compareSegs(seg1, seg2);
}

;;

/* An abstract class from which other views inherit from
----------------------------------------------------------------------------------------------------------------------*/
// Newer methods should be written as prototype methods, not in the monster `View` function at the bottom.

View.prototype = {

	calendar: null, // owner Calendar object
	coordMap: null, // a CoordMap object for converting pixel regions to dates
	el: null, // the view's containing element. set by Calendar

	// important Moments
	start: null, // the date of the very first cell
	end: null, // the date after the very last cell
	intervalStart: null, // the start of the interval of time the view represents (1st of month for month view)
	intervalEnd: null, // the exclusive end of the interval of time the view represents

	// used for cell-to-date and date-to-cell calculations
	rowCnt: null, // # of weeks
	colCnt: null, // # of days displayed in a week

	isSelected: false, // boolean whether cells are user-selected or not

	// subclasses can optionally use a scroll container
	scrollerEl: null, // the element that will most likely scroll when content is too tall
	scrollTop: null, // cached vertical scroll value

	// classNames styled by jqui themes
	widgetHeaderClass: null,
	widgetContentClass: null,
	highlightStateClass: null,

	// document handlers, bound to `this` object
	documentMousedownProxy: null,
	documentDragStartProxy: null,


	// Serves as a "constructor" to suppliment the monster `View` constructor below
	init: function() {
		var tm = this.opt('theme') ? 'ui' : 'fc';

		this.widgetHeaderClass = tm + '-widget-header';
		this.widgetContentClass = tm + '-widget-content';
		this.highlightStateClass = tm + '-state-highlight';

		// save references to `this`-bound handlers
		this.documentMousedownProxy = $.proxy(this, 'documentMousedown');
		this.documentDragStartProxy = $.proxy(this, 'documentDragStart');
	},


	// Renders the view inside an already-defined `this.el`.
	// Subclasses should override this and then call the super method afterwards.
	render: function() {
		this.updateSize();
		this.trigger('viewRender', this, this, this.el);

		// attach handlers to document. do it here to allow for destroy/rerender
		$(document)
			.on('mousedown', this.documentMousedownProxy)
			.on('dragstart', this.documentDragStartProxy); // jqui drag
	},


	// Clears all view rendering, event elements, and unregisters handlers
	destroy: function() {
		this.unselect();
		this.trigger('viewDestroy', this, this, this.el);
		this.destroyEvents();
		this.el.empty(); // removes inner contents but leaves the element intact

		$(document)
			.off('mousedown', this.documentMousedownProxy)
			.off('dragstart', this.documentDragStartProxy);
	},


	// Used to determine what happens when the users clicks next/prev. Given -1 for prev, 1 for next.
	// Should apply the delta to `date` (a Moment) and return it.
	incrementDate: function(date, delta) {
		// subclasses should implement
	},


	/* Dimensions
	------------------------------------------------------------------------------------------------------------------*/


	// Refreshes anything dependant upon sizing of the container element of the grid
	updateSize: function(isResize) {
		if (isResize) {
			this.recordScroll();
		}
		this.updateHeight();
		this.updateWidth();
	},


	// Refreshes the horizontal dimensions of the calendar
	updateWidth: function() {
		// subclasses should implement
	},


	// Refreshes the vertical dimensions of the calendar
	updateHeight: function() {
		var calendar = this.calendar; // we poll the calendar for height information

		this.setHeight(
			calendar.getSuggestedViewHeight(),
			calendar.isHeightAuto()
		);
	},


	// Updates the vertical dimensions of the calendar to the specified height.
	// if `isAuto` is set to true, height becomes merely a suggestion and the view should use its "natural" height.
	setHeight: function(height, isAuto) {
		// subclasses should implement
	},


	// Given the total height of the view, return the number of pixels that should be used for the scroller.
	// Utility for subclasses.
	computeScrollerHeight: function(totalHeight) {
		var both = this.el.add(this.scrollerEl);
		var otherHeight; // cumulative height of everything that is not the scrollerEl in the view (header+borders)

		// fuckin IE8/9/10/11 sometimes returns 0 for dimensions. this weird hack was the only thing that worked
		both.css({
			position: 'relative', // cause a reflow, which will force fresh dimension recalculation
			left: -1 // ensure reflow in case the el was already relative. negative is less likely to cause new scroll
		});
		otherHeight = this.el.outerHeight() - this.scrollerEl.height(); // grab the dimensions
		both.css({ position: '', left: '' }); // undo hack

		return totalHeight - otherHeight;
	},


	// Called for remembering the current scroll value of the scroller.
	// Should be called before there is a destructive operation (like removing DOM elements) that might inadvertently
	// change the scroll of the container.
	recordScroll: function() {
		if (this.scrollerEl) {
			this.scrollTop = this.scrollerEl.scrollTop();
		}
	},


	// Set the scroll value of the scroller to the previously recorded value.
	// Should be called after we know the view's dimensions have been restored following some type of destructive
	// operation (like temporarily removing DOM elements).
	restoreScroll: function() {
		if (this.scrollTop !== null) {
			this.scrollerEl.scrollTop(this.scrollTop);
		}
	},


	/* Events
	------------------------------------------------------------------------------------------------------------------*/


	// Renders the events onto the view.
	// Should be overriden by subclasses. Subclasses should call the super-method afterwards.
	renderEvents: function(events) {
		this.segEach(function(seg) {
			this.trigger('eventAfterRender', seg.event, seg.event, seg.el);
		});
		this.trigger('eventAfterAllRender');
	},


	// Removes event elements from the view.
	// Should be overridden by subclasses. Should call this super-method FIRST, then subclass DOM destruction.
	destroyEvents: function() {
		this.segEach(function(seg) {
			this.trigger('eventDestroy', seg.event, seg.event, seg.el);
		});
	},


	// Given an event and the default element used for rendering, returns the element that should actually be used.
	// Basically runs events and elements through the eventRender hook.
	resolveEventEl: function(event, el) {
		var custom = this.trigger('eventRender', event, event, el);

		if (custom === false) { // means don't render at all
			el = null;
		}
		else if (custom && custom !== true) {
			el = $(custom);
		}

		return el;
	},


	// Hides all rendered event segments linked to the given event
	showEvent: function(event) {
		this.segEach(function(seg) {
			seg.el.css('visibility', '');
		}, event);
	},


	// Shows all rendered event segments linked to the given event
	hideEvent: function(event) {
		this.segEach(function(seg) {
			seg.el.css('visibility', 'hidden');
		}, event);
	},


	// Iterates through event segments. Goes through all by default.
	// If the optional `event` argument is specified, only iterates through segments linked to that event.
	// The `this` value of the callback function will be the view.
	segEach: function(func, event) {
		var segs = this.getSegs();
		var i;

		for (i = 0; i < segs.length; i++) {
			if (!event || segs[i].event._id === event._id) {
				func.call(this, segs[i]);
			}
		}
	},


	// Retrieves all the rendered segment objects for the view
	getSegs: function() {
		// subclasses must implement
	},


	/* Event Drag Visualization
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event hovering over the specified date.
	// `end` is a Moment and might be null.
	// `seg` might be null. if specified, it is the segment object of the event being dragged.
	//       otherwise, an external event from outside the calendar is being dragged.
	renderDrag: function(start, end, seg) {
		// subclasses should implement
	},


	// Unrenders a visual indication of event hovering
	destroyDrag: function() {
		// subclasses should implement
	},


	// Handler for accepting externally dragged events being dropped in the view.
	// Gets called when jqui's 'dragstart' is fired.
	documentDragStart: function(ev, ui) {
		var _this = this;
		var dropDate = null;
		var dragListener;

		if (this.opt('droppable')) { // only listen if this setting is on

			// listener that tracks mouse movement over date-associated pixel regions
			dragListener = new DragListener(this.coordMap, {
				cellOver: function(cell, date) {
					dropDate = date;
					_this.renderDrag(date);
				},
				cellOut: function() {
					dropDate = null;
					_this.destroyDrag();
				}
			});

			// gets called, only once, when jqui drag is finished
			$(document).one('dragstop', function(ev, ui) {
				_this.destroyDrag();
				if (dropDate) {
					_this.trigger('drop', ev.target, dropDate, ev, ui);
				}
			});

			dragListener.startDrag(ev); // start listening immediately
		}
	},


	/* Selection
	------------------------------------------------------------------------------------------------------------------*/


	// Selects a date range on the view. `start` and `end` are both Moments.
	// `ev` is the native mouse event that begin the interaction.
	select: function(start, end, ev) {
		this.unselect(ev);
		this.renderSelection(start, end);
		this.reportSelection(start, end, ev);
	},


	// Renders a visual indication of the selection
	renderSelection: function(start, end) {
		// subclasses should implement
	},


	// Called when a new selection is made. Updates internal state and triggers handlers.
	reportSelection: function(start, end, ev) {
		this.isSelected = true;
		this.trigger('select', null, start, end, ev);
	},


	// Undoes a selection. updates in the internal state and triggers handlers.
	// `ev` is the native mouse event that began the interaction.
	unselect: function(ev) {
		if (this.isSelected) {
			this.isSelected = false;
			this.destroySelection();
			this.trigger('unselect', null, ev);
		}
	},


	// Unrenders a visual indication of selection
	destroySelection: function() {
		// subclasses should implement
	},


	// Handler for unselecting when the user clicks something and the 'unselectAuto' setting is on
	documentMousedown: function(ev) {
		var ignore;

		// is there a selection, and has the user made a proper left click?
		if (this.isSelected && this.opt('unselectAuto') && isPrimaryMouseButton(ev)) {

			// only unselect if the clicked element is not identical to or inside of an 'unselectCancel' element
			ignore = this.opt('unselectCancel');
			if (!ignore || !$(ev.target).closest(ignore).length) {
				this.unselect(ev);
			}
		}
	}

};


// We are mixing JavaScript OOP design patterns here by putting methods and member variables in the closed scope of the
// constructor. Going forward, methods should be part of the prototype.
function View(calendar) {
	var t = this;
	
	// exports
	t.calendar = calendar;
	t.opt = opt;
	t.trigger = trigger;
	t.isEventDraggable = isEventDraggable;
	t.isEventResizable = isEventResizable;
	t.eventDrop = eventDrop;
	t.eventResize = eventResize;
	
	// imports
	var reportEventChange = calendar.reportEventChange;
	
	// locals
	var options = calendar.options;
	var nextDayThreshold = moment.duration(options.nextDayThreshold);


	t.init(); // the "constructor" that concerns the prototype methods
	
	
	function opt(name) {
		var v = options[name];
		if ($.isPlainObject(v) && !isForcedAtomicOption(name)) {
			return smartProperty(v, t.name);
		}
		return v;
	}

	
	function trigger(name, thisObj) {
		return calendar.trigger.apply(
			calendar,
			[name, thisObj || t].concat(Array.prototype.slice.call(arguments, 2), [t])
		);
	}
	


	/* Event Editable Boolean Calculations
	------------------------------------------------------------------------------*/

	
	function isEventDraggable(event) {
		var source = event.source || {};

		return firstDefined(
			event.startEditable,
			source.startEditable,
			opt('eventStartEditable'),
			event.editable,
			source.editable,
			opt('editable')
		);
	}
	
	
	function isEventResizable(event) {
		var source = event.source || {};

		return firstDefined(
			event.durationEditable,
			source.durationEditable,
			opt('eventDurationEditable'),
			event.editable,
			source.editable,
			opt('editable')
		);
	}
	
	
	
	/* Event Elements
	------------------------------------------------------------------------------*/


	// Compute the text that should be displayed on an event's element.
	// Based off the settings of the view. Possible signatures:
	//   .getEventTimeText(event, formatStr)
	//   .getEventTimeText(startMoment, endMoment, formatStr)
	//   .getEventTimeText(startMoment, null, formatStr)
	// `timeFormat` is used but the `formatStr` argument can be used to override.
	t.getEventTimeText = function(event, formatStr) {
		var start;
		var end;

		if (typeof event === 'object' && typeof formatStr === 'object') {
			// first two arguments are actually moments (or null). shift arguments.
			start = event;
			end = formatStr;
			formatStr = arguments[2];
		}
		else {
			// otherwise, an event object was the first argument
			start = event.start;
			end = event.end;
		}

		formatStr = formatStr || opt('timeFormat');

		if (end && opt('displayEventEnd')) {
			return calendar.formatRange(start, end, formatStr);
		}
		else {
			return calendar.formatDate(start, formatStr);
		}
	};

	
	
	/* Event Modification Reporting
	---------------------------------------------------------------------------------*/

	
	function eventDrop(el, event, newStart, ev) {
		var mutateResult = calendar.mutateEvent(event, newStart, null);

		trigger(
			'eventDrop',
			el,
			event,
			mutateResult.dateDelta,
			function() {
				mutateResult.undo();
				reportEventChange();
			},
			ev,
			{} // jqui dummy
		);

		reportEventChange();
	}


	function eventResize(el, event, newEnd, ev) {
		var mutateResult = calendar.mutateEvent(event, null, newEnd);

		trigger(
			'eventResize',
			el,
			event,
			mutateResult.durationDelta,
			function() {
				mutateResult.undo();
				reportEventChange();
			},
			ev,
			{} // jqui dummy
		);

		reportEventChange();
	}


	// ====================================================================================================
	// Utilities for day "cells"
	// ====================================================================================================
	// The "basic" views are completely made up of day cells.
	// The "agenda" views have day cells at the top "all day" slot.
	// This was the obvious common place to put these utilities, but they should be abstracted out into
	// a more meaningful class (like DayEventRenderer).
	// ====================================================================================================


	// For determining how a given "cell" translates into a "date":
	//
	// 1. Convert the "cell" (row and column) into a "cell offset" (the # of the cell, cronologically from the first).
	//    Keep in mind that column indices are inverted with isRTL. This is taken into account.
	//
	// 2. Convert the "cell offset" to a "day offset" (the # of days since the first visible day in the view).
	//
	// 3. Convert the "day offset" into a "date" (a Moment).
	//
	// The reverse transformation happens when transforming a date into a cell.


	// exports
	t.isHiddenDay = isHiddenDay;
	t.skipHiddenDays = skipHiddenDays;
	t.getCellsPerWeek = getCellsPerWeek;
	t.dateToCell = dateToCell;
	t.dateToDayOffset = dateToDayOffset;
	t.dayOffsetToCellOffset = dayOffsetToCellOffset;
	t.cellOffsetToCell = cellOffsetToCell;
	t.cellToDate = cellToDate;
	t.cellToCellOffset = cellToCellOffset;
	t.cellOffsetToDayOffset = cellOffsetToDayOffset;
	t.dayOffsetToDate = dayOffsetToDate;
	t.rangeToSegments = rangeToSegments;
	t.isMultiDayEvent = isMultiDayEvent;


	// internals
	var hiddenDays = opt('hiddenDays') || []; // array of day-of-week indices that are hidden
	var isHiddenDayHash = []; // is the day-of-week hidden? (hash with day-of-week-index -> bool)
	var cellsPerWeek;
	var dayToCellMap = []; // hash from dayIndex -> cellIndex, for one week
	var cellToDayMap = []; // hash from cellIndex -> dayIndex, for one week
	var isRTL = opt('isRTL');


	// initialize important internal variables
	(function() {

		if (opt('weekends') === false) {
			hiddenDays.push(0, 6); // 0=sunday, 6=saturday
		}

		// Loop through a hypothetical week and determine which
		// days-of-week are hidden. Record in both hashes (one is the reverse of the other).
		for (var dayIndex=0, cellIndex=0; dayIndex<7; dayIndex++) {
			dayToCellMap[dayIndex] = cellIndex;
			isHiddenDayHash[dayIndex] = $.inArray(dayIndex, hiddenDays) != -1;
			if (!isHiddenDayHash[dayIndex]) {
				cellToDayMap[cellIndex] = dayIndex;
				cellIndex++;
			}
		}

		cellsPerWeek = cellIndex;
		if (!cellsPerWeek) {
			throw 'invalid hiddenDays'; // all days were hidden? bad.
		}

	})();


	// Is the current day hidden?
	// `day` is a day-of-week index (0-6), or a Moment
	function isHiddenDay(day) {
		if (moment.isMoment(day)) {
			day = day.day();
		}
		return isHiddenDayHash[day];
	}


	function getCellsPerWeek() {
		return cellsPerWeek;
	}


	// Incrementing the current day until it is no longer a hidden day, returning a copy.
	// If the initial value of `date` is not a hidden day, don't do anything.
	// Pass `isExclusive` as `true` if you are dealing with an end date.
	// `inc` defaults to `1` (increment one day forward each time)
	function skipHiddenDays(date, inc, isExclusive) {
		var out = date.clone();
		inc = inc || 1;
		while (
			isHiddenDayHash[(out.day() + (isExclusive ? inc : 0) + 7) % 7]
		) {
			out.add(inc, 'days');
		}
		return out;
	}


	//
	// TRANSFORMATIONS: cell -> cell offset -> day offset -> date
	//

	// cell -> date (combines all transformations)
	// Possible arguments:
	// - row, col
	// - { row:#, col: # }
	function cellToDate() {
		var cellOffset = cellToCellOffset.apply(null, arguments);
		var dayOffset = cellOffsetToDayOffset(cellOffset);
		var date = dayOffsetToDate(dayOffset);
		return date;
	}

	// cell -> cell offset
	// Possible arguments:
	// - row, col
	// - { row:#, col:# }
	function cellToCellOffset(row, col) {
		var colCnt = t.colCnt;

		// rtl variables. wish we could pre-populate these. but where?
		var dis = isRTL ? -1 : 1;
		var dit = isRTL ? colCnt - 1 : 0;

		if (typeof row == 'object') {
			col = row.col;
			row = row.row;
		}
		var cellOffset = row * colCnt + (col * dis + dit); // column, adjusted for RTL (dis & dit)

		return cellOffset;
	}

	// cell offset -> day offset
	function cellOffsetToDayOffset(cellOffset) {
		var day0 = t.start.day(); // first date's day of week
		cellOffset += dayToCellMap[day0]; // normlize cellOffset to beginning-of-week
		return Math.floor(cellOffset / cellsPerWeek) * 7 + // # of days from full weeks
			cellToDayMap[ // # of days from partial last week
				(cellOffset % cellsPerWeek + cellsPerWeek) % cellsPerWeek // crazy math to handle negative cellOffsets
			] -
			day0; // adjustment for beginning-of-week normalization
	}

	// day offset -> date
	function dayOffsetToDate(dayOffset) {
		return t.start.clone().add(dayOffset, 'days');
	}


	//
	// TRANSFORMATIONS: date -> day offset -> cell offset -> cell
	//

	// date -> cell (combines all transformations)
	function dateToCell(date) {
		var dayOffset = dateToDayOffset(date);
		var cellOffset = dayOffsetToCellOffset(dayOffset);
		var cell = cellOffsetToCell(cellOffset);
		return cell;
	}

	// date -> day offset
	function dateToDayOffset(date) {
		return date.clone().stripTime().diff(t.start, 'days');
	}

	// day offset -> cell offset
	function dayOffsetToCellOffset(dayOffset) {
		var day0 = t.start.day(); // first date's day of week
		dayOffset += day0; // normalize dayOffset to beginning-of-week
		return Math.floor(dayOffset / 7) * cellsPerWeek + // # of cells from full weeks
			dayToCellMap[ // # of cells from partial last week
				(dayOffset % 7 + 7) % 7 // crazy math to handle negative dayOffsets
			] -
			dayToCellMap[day0]; // adjustment for beginning-of-week normalization
	}

	// cell offset -> cell (object with row & col keys)
	function cellOffsetToCell(cellOffset) {
		var colCnt = t.colCnt;

		// rtl variables. wish we could pre-populate these. but where?
		var dis = isRTL ? -1 : 1;
		var dit = isRTL ? colCnt - 1 : 0;

		var row = Math.floor(cellOffset / colCnt);
		var col = ((cellOffset % colCnt + colCnt) % colCnt) * dis + dit; // column, adjusted for RTL (dis & dit)
		return {
			row: row,
			col: col
		};
	}


	//
	// Converts a date range into an array of segment objects.
	// "Segments" are horizontal stretches of time, sliced up by row.
	// A segment object has the following properties:
	// - row
	// - cols
	// - isStart
	// - isEnd
	//
	function rangeToSegments(start, end) {

		var rowCnt = t.rowCnt;
		var colCnt = t.colCnt;
		var segments = []; // array of segments to return

		// day offset for given date range
		var dayRange = computeDayRange(start, end); // convert to a whole-day range
		var rangeDayOffsetStart = dateToDayOffset(dayRange.start);
		var rangeDayOffsetEnd = dateToDayOffset(dayRange.end); // an exclusive value

		// first and last cell offset for the given date range
		// "last" implies inclusivity
		var rangeCellOffsetFirst = dayOffsetToCellOffset(rangeDayOffsetStart);
		var rangeCellOffsetLast = dayOffsetToCellOffset(rangeDayOffsetEnd) - 1;

		// loop through all the rows in the view
		for (var row=0; row<rowCnt; row++) {

			// first and last cell offset for the row
			var rowCellOffsetFirst = row * colCnt;
			var rowCellOffsetLast = rowCellOffsetFirst + colCnt - 1;

			// get the segment's cell offsets by constraining the range's cell offsets to the bounds of the row
			var segmentCellOffsetFirst = Math.max(rangeCellOffsetFirst, rowCellOffsetFirst);
			var segmentCellOffsetLast = Math.min(rangeCellOffsetLast, rowCellOffsetLast);

			// make sure segment's offsets are valid and in view
			if (segmentCellOffsetFirst <= segmentCellOffsetLast) {

				// translate to cells
				var segmentCellFirst = cellOffsetToCell(segmentCellOffsetFirst);
				var segmentCellLast = cellOffsetToCell(segmentCellOffsetLast);

				// view might be RTL, so order by leftmost column
				var cols = [ segmentCellFirst.col, segmentCellLast.col ].sort();

				// Determine if segment's first/last cell is the beginning/end of the date range.
				// We need to compare "day offset" because "cell offsets" are often ambiguous and
				// can translate to multiple days, and an edge case reveals itself when we the
				// range's first cell is hidden (we don't want isStart to be true).
				var isStart = cellOffsetToDayOffset(segmentCellOffsetFirst) == rangeDayOffsetStart;
				var isEnd = cellOffsetToDayOffset(segmentCellOffsetLast) + 1 == rangeDayOffsetEnd;
				                                                   // +1 for comparing exclusively

				segments.push({
					row: row,
					leftCol: cols[0],
					rightCol: cols[1],
					isStart: isStart,
					isEnd: isEnd
				});
			}
		}

		return segments;
	}


	// Returns the date range of the full days the given range visually appears to occupy.
	// Returns object with properties `start` (moment) and `end` (moment, exclusive end).
	function computeDayRange(start, end) {
		var startDay = start.clone().stripTime(); // the beginning of the day the range starts
		var endDay;
		var endTimeMS;

		if (end) {
			endDay = end.clone().stripTime(); // the beginning of the day the range exclusively ends
			endTimeMS = +end.time(); // # of milliseconds into `endDay`

			// If the end time is actually inclusively part of the next day and is equal to or
			// beyond the next day threshold, adjust the end to be the exclusive end of `endDay`.
			// Otherwise, leaving it as inclusive will cause it to exclude `endDay`.
			if (endTimeMS && endTimeMS >= nextDayThreshold) {
				endDay.add(1, 'days');
			}
		}

		// If no end was specified, or if it is within `startDay` but not past nextDayThreshold,
		// assign the default duration of one day.
		if (!end || endDay <= startDay) {
			endDay = startDay.clone().add(1, 'days');
		}

		return { start: startDay, end: endDay };
	}


	// Does the given event visually appear to occupy more than one day?
	function isMultiDayEvent(event) {
		var range = computeDayRange(event.start, event.end);

		return range.end.diff(range.start, 'days') > 1;
	}

}

;;

/* An abstract class for the "basic" views, as well as month view. Renders one or more rows of day cells.
----------------------------------------------------------------------------------------------------------------------*/
// It is a manager for a DayGrid subcomponent, which does most of the heavy lifting.
// It is responsible for managing width/height.

function BasicView(calendar) {
	View.call(this, calendar); // call the super-constructor
	this.dayGrid = new DayGrid(this);
	this.coordMap = this.dayGrid.coordMap; // the view's date-to-cell mapping is identical to the subcomponent's
}


BasicView.prototype = createObject(View.prototype); // define the super-class
$.extend(BasicView.prototype, {

	dayGrid: null, // the main subcomponent that does most of the heavy lifting

	dayNumbersVisible: false, // display day numbers on each day cell?
	weekNumbersVisible: false, // display week numbers along the side?

	weekNumberWidth: null, // width of all the week-number cells running down the side

	headRowEl: null, // the fake row element of the day-of-week header


	// Renders the view into `this.el`, which should already be assigned.
	// rowCnt, colCnt, and dayNumbersVisible have been calculated by a subclass and passed here.
	render: function(rowCnt, colCnt, dayNumbersVisible) {

		// needed for cell-to-date and date-to-cell calculations in View
		this.rowCnt = rowCnt;
		this.colCnt = colCnt;

		this.dayNumbersVisible = dayNumbersVisible;
		this.weekNumbersVisible = this.opt('weekNumbers');
		this.dayGrid.numbersVisible = this.dayNumbersVisible || this.weekNumbersVisible;

		this.el.addClass('fc-basic-view').html(this.renderHtml());

		this.headRowEl = this.el.find('thead .fc-row');

		this.scrollerEl = this.el.find('.fc-day-grid-container');
		this.dayGrid.coordMap.containerEl = this.scrollerEl; // constrain clicks/etc to the dimensions of the scroller

		this.dayGrid.el = this.el.find('.fc-day-grid');
		this.dayGrid.render(this.hasRigidRows());

		View.prototype.render.call(this); // call the super-method
	},


	// Make subcomponents ready for cleanup
	destroy: function() {
		this.dayGrid.destroy();
		View.prototype.destroy.call(this); // call the super-method
	},


	// Builds the HTML skeleton for the view.
	// The day-grid component will render inside of a container defined by this HTML.
	renderHtml: function() {
		return '' +
			'<table>' +
				'<thead>' +
					'<tr>' +
						'<td class="' + this.widgetHeaderClass + '">' +
							this.dayGrid.headHtml() + // render the day-of-week headers
						'</td>' +
					'</tr>' +
				'</thead>' +
				'<tbody>' +
					'<tr>' +
						'<td class="' + this.widgetContentClass + '">' +
							'<div class="fc-day-grid-container">' +
								'<div class="fc-day-grid"/>' +
							'</div>' +
						'</td>' +
					'</tr>' +
				'</tbody>' +
			'</table>';
	},


	// Generates the HTML that will go before the day-of week header cells.
	// Queried by the DayGrid subcomponent when generating rows. Ordering depends on isRTL.
	headIntroHtml: function() {
		if (this.weekNumbersVisible) {
			return '' +
				'<th class="fc-week-number ' + this.widgetHeaderClass + '" ' + this.weekNumberStyleAttr() + '>' +
					'<span>' + // needed for matchCellWidths
						htmlEscape(this.opt('weekNumberTitle')) +
					'</span>' +
				'</th>';
		}
	},


	// Generates the HTML that will go before content-skeleton cells that display the day/week numbers.
	// Queried by the DayGrid subcomponent. Ordering depends on isRTL.
	numberIntroHtml: function(row) {
		if (this.weekNumbersVisible) {
			return '' +
				'<td class="fc-week-number" ' + this.weekNumberStyleAttr() + '>' +
					'<span>' + // needed for matchCellWidths
						this.calendar.calculateWeekNumber(this.cellToDate(row, 0)) +
					'</span>' +
				'</td>';
		}
	},


	// Generates the HTML that goes before the day bg cells for each day-row.
	// Queried by the DayGrid subcomponent. Ordering depends on isRTL.
	dayIntroHtml: function() {
		if (this.weekNumbersVisible) {
			return '<td class="fc-week-number ' + this.widgetContentClass + '" ' +
				this.weekNumberStyleAttr() + '></td>';
		}
	},


	// Generates the HTML that goes before every other type of row generated by DayGrid. Ordering depends on isRTL.
	// Affects helper-skeleton and highlight-skeleton rows.
	introHtml: function() {
		if (this.weekNumbersVisible) {
			return '<td class="fc-week-number" ' + this.weekNumberStyleAttr() + '></td>';
		}
	},


	// Generates the HTML for the <td>s of the "number" row in the DayGrid's content skeleton.
	// The number row will only exist if either day numbers or week numbers are turned on.
	numberCellHtml: function(row, col, date) {
		var classes;

		if (!this.dayNumbersVisible) { // if there are week numbers but not day numbers
			return '<td/>'; //  will create an empty space above events :(
		}

		classes = this.dayGrid.getDayClasses(date);
		classes.unshift('fc-day-number');

		return '' +
			'<td class="' + classes.join(' ') + '" data-date="' + date.format() + '">' +
				date.date() +
			'</td>';
	},


	// Generates an HTML attribute string for setting the width of the week number column, if it is known
	weekNumberStyleAttr: function() {
		if (this.weekNumberWidth !== null) {
			return 'style="width:' + this.weekNumberWidth + 'px"';
		}
		return '';
	},


	// Determines whether each row should have a constant height
	hasRigidRows: function() {
		var eventLimit = this.opt('eventLimit');
		return eventLimit && typeof eventLimit !== 'number';
	},


	/* Dimensions
	------------------------------------------------------------------------------------------------------------------*/


	// Refreshes the horizontal dimensions of the view
	updateWidth: function() {
		if (this.weekNumbersVisible) {
			// Make sure all week number cells running down the side have the same width.
			// Record the width for cells created later.
			this.weekNumberWidth = matchCellWidths(
				this.el.find('.fc-week-number')
			);
		}
	},


	// Adjusts the vertical dimensions of the view to the specified values
	setHeight: function(totalHeight, isAuto) {
		var eventLimit = this.opt('eventLimit');
		var scrollerHeight;

		// reset all heights to be natural
		unsetScroller(this.scrollerEl);
		uncompensateScroll(this.headRowEl);

		this.dayGrid.destroySegPopover(); // kill the "more" popover if displayed

		// is the event limit a constant level number?
		if (eventLimit && typeof eventLimit === 'number') {
			this.dayGrid.limitRows(eventLimit); // limit the levels first so the height can redistribute after
		}

		scrollerHeight = this.computeScrollerHeight(totalHeight);
		this.setGridHeight(scrollerHeight, isAuto);

		// is the event limit dynamically calculated?
		if (eventLimit && typeof eventLimit !== 'number') {
			this.dayGrid.limitRows(eventLimit); // limit the levels after the grid's row heights have been set
		}

		if (!isAuto && setPotentialScroller(this.scrollerEl, scrollerHeight)) { // using scrollbars?

			compensateScroll(this.headRowEl, getScrollbarWidths(this.scrollerEl));

			// doing the scrollbar compensation might have created text overflow which created more height. redo
			scrollerHeight = this.computeScrollerHeight(totalHeight);
			this.scrollerEl.height(scrollerHeight);

			this.restoreScroll();
		}
	},


	// Sets the height of just the DayGrid component in this view
	setGridHeight: function(height, isAuto) {
		if (isAuto) {
			undistributeHeight(this.dayGrid.rowEls); // let the rows be their natural height with no expanding
		}
		else {
			distributeHeight(this.dayGrid.rowEls, height, true); // true = compensate for height-hogging rows
		}
	},


	/* Events
	------------------------------------------------------------------------------------------------------------------*/


	// Renders the given events onto the view and populates the segments array
	renderEvents: function(events) {
		this.dayGrid.renderEvents(events);

		this.updateHeight(); // must compensate for events that overflow the row

		View.prototype.renderEvents.call(this, events); // call the super-method
	},


	// Retrieves all segment objects that are rendered in the view
	getSegs: function() {
		return this.dayGrid.getSegs();
	},


	// Unrenders all event elements and clears internal segment data
	destroyEvents: function() {
		View.prototype.destroyEvents.call(this); // do this before dayGrid's segs have been cleared

		this.recordScroll(); // removing events will reduce height and mess with the scroll, so record beforehand
		this.dayGrid.destroyEvents();

		// we DON'T need to call updateHeight() because:
		// A) a renderEvents() call always happens after this, which will eventually call updateHeight()
		// B) in IE8, this causes a flash whenever events are rerendered
	},


	/* Event Dragging
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event being dragged over the view.
	// A returned value of `true` signals that a mock "helper" event has been rendered.
	renderDrag: function(start, end, seg) {
		return this.dayGrid.renderDrag(start, end, seg);
	},


	// Unrenders the visual indication of an event being dragged over the view
	destroyDrag: function() {
		this.dayGrid.destroyDrag();
	},


	/* Selection
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of a selection
	renderSelection: function(start, end) {
		this.dayGrid.renderSelection(start, end);
	},


	// Unrenders a visual indications of a selection
	destroySelection: function() {
		this.dayGrid.destroySelection();
	}

});

;;

/* A month view with day cells running in rows (one-per-week) and columns
----------------------------------------------------------------------------------------------------------------------*/

setDefaults({
	fixedWeekCount: true
});

fcViews.month = MonthView; // register the view

function MonthView(calendar) {
	BasicView.call(this, calendar); // call the super-constructor
}


MonthView.prototype = createObject(BasicView.prototype); // define the super-class
$.extend(MonthView.prototype, {

	name: 'month',


	incrementDate: function(date, delta) {
		return date.clone().stripTime().add(delta, 'months').startOf('month');
	},


	render: function(date) {
		var rowCnt;

		this.intervalStart = date.clone().stripTime().startOf('month');
		this.intervalEnd = this.intervalStart.clone().add(1, 'months');

		this.start = this.intervalStart.clone();
		this.start = this.skipHiddenDays(this.start); // move past the first week if no visible days
		this.start.startOf('week');
		this.start = this.skipHiddenDays(this.start); // move past the first invisible days of the week

		this.end = this.intervalEnd.clone();
		this.end = this.skipHiddenDays(this.end, -1, true); // move in from the last week if no visible days
		this.end.add((7 - this.end.weekday()) % 7, 'days'); // move to end of week if not already
		this.end = this.skipHiddenDays(this.end, -1, true); // move in from the last invisible days of the week

		rowCnt = Math.ceil( // need to ceil in case there are hidden days
			this.end.diff(this.start, 'weeks', true) // returnfloat=true
		);
		if (this.isFixedWeeks()) {
			this.end.add(6 - rowCnt, 'weeks');
			rowCnt = 6;
		}

		this.title = this.calendar.formatDate(this.intervalStart, this.opt('titleFormat'));

		BasicView.prototype.render.call(this, rowCnt, this.getCellsPerWeek(), true); // call the super-method
	},


	// Overrides the default BasicView behavior to have special multi-week auto-height logic
	setGridHeight: function(height, isAuto) {

		isAuto = isAuto || this.opt('weekMode') === 'variable'; // LEGACY: weekMode is deprecated

		// if auto, make the height of each row the height that it would be if there were 6 weeks
		if (isAuto) {
			height *= this.rowCnt / 6;
		}

		distributeHeight(this.dayGrid.rowEls, height, !isAuto); // if auto, don't compensate for height-hogging rows
	},


	isFixedWeeks: function() {
		var weekMode = this.opt('weekMode'); // LEGACY: weekMode is deprecated
		if (weekMode) {
			return weekMode === 'fixed'; // if any other type of weekMode, assume NOT fixed
		}

		return this.opt('fixedWeekCount');
	}

});

;;

/* A week view with simple day cells running horizontally
----------------------------------------------------------------------------------------------------------------------*/
// TODO: a WeekView mixin for calculating dates and titles

fcViews.basicWeek = BasicWeekView; // register this view

function BasicWeekView(calendar) {
	BasicView.call(this, calendar); // call the super-constructor
}


BasicWeekView.prototype = createObject(BasicView.prototype); // define the super-class
$.extend(BasicWeekView.prototype, {

	name: 'basicWeek',


	incrementDate: function(date, delta) {
		return date.clone().stripTime().add(delta, 'weeks').startOf('week');
	},


	render: function(date) {

		this.intervalStart = date.clone().stripTime().startOf('week');
		this.intervalEnd = this.intervalStart.clone().add(1, 'weeks');

		this.start = this.skipHiddenDays(this.intervalStart);
		this.end = this.skipHiddenDays(this.intervalEnd, -1, true);

		this.title = this.calendar.formatRange(
			this.start,
			this.end.clone().subtract(1), // make inclusive by subtracting 1 ms
			this.opt('titleFormat'),
			' \u2014 ' // emphasized dash
		);

		BasicView.prototype.render.call(this, 1, this.getCellsPerWeek(), false); // call the super-method
	}
	
});
;;

/* A view with a single simple day cell
----------------------------------------------------------------------------------------------------------------------*/

fcViews.basicDay = BasicDayView; // register this view

function BasicDayView(calendar) {
	BasicView.call(this, calendar); // call the super-constructor
}


BasicDayView.prototype = createObject(BasicView.prototype); // define the super-class
$.extend(BasicDayView.prototype, {

	name: 'basicDay',


	incrementDate: function(date, delta) {
		var out = date.clone().stripTime().add(delta, 'days');
		out = this.skipHiddenDays(out, delta < 0 ? -1 : 1);
		return out;
	},


	render: function(date) {

		this.start = this.intervalStart = date.clone().stripTime();
		this.end = this.intervalEnd = this.start.clone().add(1, 'days');

		this.title = this.calendar.formatDate(this.start, this.opt('titleFormat'));

		BasicView.prototype.render.call(this, 1, 1, false); // call the super-method
	}

});
;;

/* An abstract class for all agenda-related views. Displays one more columns with time slots running vertically.
----------------------------------------------------------------------------------------------------------------------*/
// Is a manager for the TimeGrid subcomponent and possibly the DayGrid subcomponent (if allDaySlot is on).
// Responsible for managing width/height.

setDefaults({
	allDaySlot: true,
	allDayText: 'all-day',

	scrollTime: '06:00:00',

	slotDuration: '00:30:00',

	axisFormat: generateAgendaAxisFormat,
	timeFormat: {
		agenda: generateAgendaTimeFormat
	},

	minTime: '00:00:00',
	maxTime: '24:00:00',
	slotEventOverlap: true
});

var AGENDA_ALL_DAY_EVENT_LIMIT = 5;


function generateAgendaAxisFormat(options, langData) {
	return langData.longDateFormat('LT')
		.replace(':mm', '(:mm)')
		.replace(/(\Wmm)$/, '($1)') // like above, but for foreign langs
		.replace(/\s*a$/i, 'a'); // convert AM/PM/am/pm to lowercase. remove any spaces beforehand
}


function generateAgendaTimeFormat(options, langData) {
	return langData.longDateFormat('LT')
		.replace(/\s*a$/i, ''); // remove trailing AM/PM
}


function AgendaView(calendar) {
	View.call(this, calendar); // call the super-constructor

	this.timeGrid = new TimeGrid(this);

	if (this.opt('allDaySlot')) { // should we display the "all-day" area?
		this.dayGrid = new DayGrid(this); // the all-day subcomponent of this view

		// the coordinate grid will be a combination of both subcomponents' grids
		this.coordMap = new ComboCoordMap([
			this.dayGrid.coordMap,
			this.timeGrid.coordMap
		]);
	}
	else {
		this.coordMap = this.timeGrid.coordMap;
	}
}


AgendaView.prototype = createObject(View.prototype); // define the super-class
$.extend(AgendaView.prototype, {

	timeGrid: null, // the main time-grid subcomponent of this view
	dayGrid: null, // the "all-day" subcomponent. if all-day is turned off, this will be null

	axisWidth: null, // the width of the time axis running down the side

	noScrollRowEls: null, // set of fake row elements that must compensate when scrollerEl has scrollbars

	// when the time-grid isn't tall enough to occupy the given height, we render an <hr> underneath
	bottomRuleEl: null,
	bottomRuleHeight: null,


	/* Rendering
	------------------------------------------------------------------------------------------------------------------*/


	// Renders the view into `this.el`, which has already been assigned.
	// `colCnt` has been calculated by a subclass and passed here.
	render: function(colCnt) {

		// needed for cell-to-date and date-to-cell calculations in View
		this.rowCnt = 1;
		this.colCnt = colCnt;

		this.el.addClass('fc-agenda-view').html(this.renderHtml());

		// the element that wraps the time-grid that will probably scroll
		this.scrollerEl = this.el.find('.fc-time-grid-container');
		this.timeGrid.coordMap.containerEl = this.scrollerEl; // don't accept clicks/etc outside of this

		this.timeGrid.el = this.el.find('.fc-time-grid');
		this.timeGrid.render();

		// the <hr> that sometimes displays under the time-grid
		this.bottomRuleEl = $('<hr class="' + this.widgetHeaderClass + '"/>')
			.appendTo(this.timeGrid.el); // inject it into the time-grid

		if (this.dayGrid) {
			this.dayGrid.el = this.el.find('.fc-day-grid');
			this.dayGrid.render();

			// have the day-grid extend it's coordinate area over the <hr> dividing the two grids
			this.dayGrid.bottomCoordPadding = this.dayGrid.el.next('hr').outerHeight();
		}

		this.noScrollRowEls = this.el.find('.fc-row:not(.fc-scroller *)'); // fake rows not within the scroller

		View.prototype.render.call(this); // call the super-method

		this.resetScroll(); // do this after sizes have been set
	},


	// Make subcomponents ready for cleanup
	destroy: function() {
		this.timeGrid.destroy();
		if (this.dayGrid) {
			this.dayGrid.destroy();
		}
		View.prototype.destroy.call(this); // call the super-method
	},


	// Builds the HTML skeleton for the view.
	// The day-grid and time-grid components will render inside containers defined by this HTML.
	renderHtml: function() {
		return '' +
			'<table>' +
				'<thead>' +
					'<tr>' +
						'<td class="' + this.widgetHeaderClass + '">' +
							this.timeGrid.headHtml() + // render the day-of-week headers
						'</td>' +
					'</tr>' +
				'</thead>' +
				'<tbody>' +
					'<tr>' +
						'<td class="' + this.widgetContentClass + '">' +
							(this.dayGrid ?
								'<div class="fc-day-grid"/>' +
								'<hr class="' + this.widgetHeaderClass + '"/>' :
								''
								) +
							'<div class="fc-time-grid-container">' +
								'<div class="fc-time-grid"/>' +
							'</div>' +
						'</td>' +
					'</tr>' +
				'</tbody>' +
			'</table>';
	},


	// Generates the HTML that will go before the day-of week header cells.
	// Queried by the TimeGrid subcomponent when generating rows. Ordering depends on isRTL.
	headIntroHtml: function() {
		var date;
		var weekNumber;
		var weekTitle;
		var weekText;

		if (this.opt('weekNumbers')) {
			date = this.cellToDate(0, 0);
			weekNumber = this.calendar.calculateWeekNumber(date);
			weekTitle = this.opt('weekNumberTitle');

			if (this.opt('isRTL')) {
				weekText = weekNumber + weekTitle;
			}
			else {
				weekText = weekTitle + weekNumber;
			}

			return '' +
				'<th class="fc-axis fc-week-number ' + this.widgetHeaderClass + '" ' + this.axisStyleAttr() + '>' +
					'<span>' + // needed for matchCellWidths
						htmlEscape(weekText) +
					'</span>' +
				'</th>';
		}
		else {
			return '<th class="fc-axis ' + this.widgetHeaderClass + '" ' + this.axisStyleAttr() + '></th>';
		}
	},


	// Generates the HTML that goes before the all-day cells.
	// Queried by the DayGrid subcomponent when generating rows. Ordering depends on isRTL.
	dayIntroHtml: function() {
		return '' +
			'<td class="fc-axis ' + this.widgetContentClass + '" ' + this.axisStyleAttr() + '>' +
				'<span>' + // needed for matchCellWidths
					(this.opt('allDayHtml') || htmlEscape(this.opt('allDayText'))) +
				'</span>' +
			'</td>';
	},


	// Generates the HTML that goes before the bg of the TimeGrid slot area. Long vertical column.
	slotBgIntroHtml: function() {
		return '<td class="fc-axis ' + this.widgetContentClass + '" ' + this.axisStyleAttr() + '></td>';
	},


	// Generates the HTML that goes before all other types of cells.
	// Affects content-skeleton, helper-skeleton, highlight-skeleton for both the time-grid and day-grid.
	// Queried by the TimeGrid and DayGrid subcomponents when generating rows. Ordering depends on isRTL.
	introHtml: function() {
		return '<td class="fc-axis" ' + this.axisStyleAttr() + '></td>';
	},


	// Generates an HTML attribute string for setting the width of the axis, if it is known
	axisStyleAttr: function() {
		if (this.axisWidth !== null) {
			 return 'style="width:' + this.axisWidth + 'px"';
		}
		return '';
	},


	/* Dimensions
	------------------------------------------------------------------------------------------------------------------*/

	updateSize: function(isResize) {
		if (isResize) {
			this.timeGrid.resize();
		}
		View.prototype.updateSize.call(this, isResize);
	},


	// Refreshes the horizontal dimensions of the view
	updateWidth: function() {
		// make all axis cells line up, and record the width so newly created axis cells will have it
		this.axisWidth = matchCellWidths(this.el.find('.fc-axis'));
	},


	// Adjusts the vertical dimensions of the view to the specified values
	setHeight: function(totalHeight, isAuto) {
		var eventLimit;
		var scrollerHeight;

		if (this.bottomRuleHeight === null) {
			// calculate the height of the rule the very first time
			this.bottomRuleHeight = this.bottomRuleEl.outerHeight();
		}
		this.bottomRuleEl.hide(); // .show() will be called later if this <hr> is necessary

		// reset all dimensions back to the original state
		this.scrollerEl.css('overflow', '');
		unsetScroller(this.scrollerEl);
		uncompensateScroll(this.noScrollRowEls);

		// limit number of events in the all-day area
		if (this.dayGrid) {
			this.dayGrid.destroySegPopover(); // kill the "more" popover if displayed

			eventLimit = this.opt('eventLimit');
			if (eventLimit && typeof eventLimit !== 'number') {
				eventLimit = AGENDA_ALL_DAY_EVENT_LIMIT; // make sure "auto" goes to a real number
			}
			if (eventLimit) {
				this.dayGrid.limitRows(eventLimit);
			}
		}

		if (!isAuto) { // should we force dimensions of the scroll container, or let the contents be natural height?

			scrollerHeight = this.computeScrollerHeight(totalHeight);
			if (setPotentialScroller(this.scrollerEl, scrollerHeight)) { // using scrollbars?

				// make the all-day and header rows lines up
				compensateScroll(this.noScrollRowEls, getScrollbarWidths(this.scrollerEl));

				// the scrollbar compensation might have changed text flow, which might affect height, so recalculate
				// and reapply the desired height to the scroller.
				scrollerHeight = this.computeScrollerHeight(totalHeight);
				this.scrollerEl.height(scrollerHeight);

				this.restoreScroll();
			}
			else { // no scrollbars
				// still, force a height and display the bottom rule (marks the end of day)
				this.scrollerEl.height(scrollerHeight).css('overflow', 'hidden'); // in case <hr> goes outside
				this.bottomRuleEl.show();
			}
		}
	},


	// Sets the scroll value of the scroller to the intial pre-configured state prior to allowing the user to change it.
	resetScroll: function() {
		var _this = this;
		var scrollTime = moment.duration(this.opt('scrollTime'));
		var top = this.timeGrid.computeTimeTop(scrollTime);

		// zoom can give weird floating-point values. rather scroll a little bit further
		top = Math.ceil(top);

		if (top) {
			top++; // to overcome top border that slots beyond the first have. looks better
		}

		function scroll() {
			_this.scrollerEl.scrollTop(top);
		}

		scroll();
		setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
	},


	/* Events
	------------------------------------------------------------------------------------------------------------------*/


	// Renders events onto the view and populates the View's segment array
	renderEvents: function(events) {
		var dayEvents = [];
		var timedEvents = [];
		var daySegs = [];
		var timedSegs;
		var i;

		// separate the events into all-day and timed
		for (i = 0; i < events.length; i++) {
			if (events[i].allDay) {
				dayEvents.push(events[i]);
			}
			else {
				timedEvents.push(events[i]);
			}
		}

		// render the events in the subcomponents
		timedSegs = this.timeGrid.renderEvents(timedEvents);
		if (this.dayGrid) {
			daySegs = this.dayGrid.renderEvents(dayEvents);
		}

		// the all-day area is flexible and might have a lot of events, so shift the height
		this.updateHeight();

		View.prototype.renderEvents.call(this, events); // call the super-method
	},


	// Retrieves all segment objects that are rendered in the view
	getSegs: function() {
		return this.timeGrid.getSegs().concat(
			this.dayGrid ? this.dayGrid.getSegs() : []
		);
	},


	// Unrenders all event elements and clears internal segment data
	destroyEvents: function() {
		View.prototype.destroyEvents.call(this); // do this before the grids' segs have been cleared

		// if destroyEvents is being called as part of an event rerender, renderEvents will be called shortly
		// after, so remember what the scroll value was so we can restore it.
		this.recordScroll();

		// destroy the events in the subcomponents
		this.timeGrid.destroyEvents();
		if (this.dayGrid) {
			this.dayGrid.destroyEvents();
		}

		// we DON'T need to call updateHeight() because:
		// A) a renderEvents() call always happens after this, which will eventually call updateHeight()
		// B) in IE8, this causes a flash whenever events are rerendered
	},


	/* Event Dragging
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of an event being dragged over the view.
	// A returned value of `true` signals that a mock "helper" event has been rendered.
	renderDrag: function(start, end, seg) {
		if (start.hasTime()) {
			return this.timeGrid.renderDrag(start, end, seg);
		}
		else if (this.dayGrid) {
			return this.dayGrid.renderDrag(start, end, seg);
		}
	},


	// Unrenders a visual indications of an event being dragged over the view
	destroyDrag: function() {
		this.timeGrid.destroyDrag();
		if (this.dayGrid) {
			this.dayGrid.destroyDrag();
		}
	},


	/* Selection
	------------------------------------------------------------------------------------------------------------------*/


	// Renders a visual indication of a selection
	renderSelection: function(start, end) {
		if (start.hasTime() || end.hasTime()) {
			this.timeGrid.renderSelection(start, end);
		}
		else if (this.dayGrid) {
			this.dayGrid.renderSelection(start, end);
		}
	},


	// Unrenders a visual indications of a selection
	destroySelection: function() {
		this.timeGrid.destroySelection();
		if (this.dayGrid) {
			this.dayGrid.destroySelection();
		}
	}

});

;;

/* A week view with an all-day cell area at the top, and a time grid below
----------------------------------------------------------------------------------------------------------------------*/
// TODO: a WeekView mixin for calculating dates and titles

fcViews.agendaWeek = AgendaWeekView; // register the view

function AgendaWeekView(calendar) {
	AgendaView.call(this, calendar); // call the super-constructor
}


AgendaWeekView.prototype = createObject(AgendaView.prototype); // define the super-class
$.extend(AgendaWeekView.prototype, {

	name: 'agendaWeek',


	incrementDate: function(date, delta) {
		return date.clone().stripTime().add(delta, 'weeks').startOf('week');
	},


	render: function(date) {

		this.intervalStart = date.clone().stripTime().startOf('week');
		this.intervalEnd = this.intervalStart.clone().add(1, 'weeks');

		this.start = this.skipHiddenDays(this.intervalStart);
		this.end = this.skipHiddenDays(this.intervalEnd, -1, true);

		this.title = this.calendar.formatRange(
			this.start,
			this.end.clone().subtract(1), // make inclusive by subtracting 1 ms
			this.opt('titleFormat'),
			' \u2014 ' // emphasized dash
		);

		AgendaView.prototype.render.call(this, this.getCellsPerWeek()); // call the super-method
	}

});

;;

/* A day view with an all-day cell area at the top, and a time grid below
----------------------------------------------------------------------------------------------------------------------*/

fcViews.agendaDay = AgendaDayView; // register the view

function AgendaDayView(calendar) {
	AgendaView.call(this, calendar); // call the super-constructor
}


AgendaDayView.prototype = createObject(AgendaView.prototype); // define the super-class
$.extend(AgendaDayView.prototype, {

	name: 'agendaDay',


	incrementDate: function(date, delta) {
		var out = date.clone().stripTime().add(delta, 'days');
		out = this.skipHiddenDays(out, delta < 0 ? -1 : 1);
		return out;
	},


	render: function(date) {

		this.start = this.intervalStart = date.clone().stripTime();
		this.end = this.intervalEnd = this.start.clone().add(1, 'days');

		this.title = this.calendar.formatDate(this.start, this.opt('titleFormat'));

		AgendaView.prototype.render.call(this, 1); // call the super-method
	}

});

;;

});
//! moment.js
//! version : 2.8.3
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

(function (undefined) {
    /************************************
        Constants
    ************************************/

    var moment,
        VERSION = '2.8.3',
        // the global-scope this is NOT the global object in Node.js
        globalScope = typeof global !== 'undefined' ? global : this,
        oldGlobalMoment,
        round = Math.round,
        hasOwnProperty = Object.prototype.hasOwnProperty,
        i,

        YEAR = 0,
        MONTH = 1,
        DATE = 2,
        HOUR = 3,
        MINUTE = 4,
        SECOND = 5,
        MILLISECOND = 6,

        // internal storage for locale config files
        locales = {},

        // extra moment internal properties (plugins register props here)
        momentProperties = [],

        // check for nodeJS
        hasModule = (typeof module !== 'undefined' && module.exports),

        // ASP.NET json date format regex
        aspNetJsonRegex = /^\/?Date\((\-?\d+)/i,
        aspNetTimeSpanJsonRegex = /(\-)?(?:(\d*)\.)?(\d+)\:(\d+)(?:\:(\d+)\.?(\d{3})?)?/,

        // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
        // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
        isoDurationRegex = /^(-)?P(?:(?:([0-9,.]*)Y)?(?:([0-9,.]*)M)?(?:([0-9,.]*)D)?(?:T(?:([0-9,.]*)H)?(?:([0-9,.]*)M)?(?:([0-9,.]*)S)?)?|([0-9,.]*)W)$/,

        // format tokens
        formattingTokens = /(\[[^\[]*\])|(\\)?(Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Q|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|mm?|ss?|S{1,4}|X|zz?|ZZ?|.)/g,
        localFormattingTokens = /(\[[^\[]*\])|(\\)?(LT|LL?L?L?|l{1,4})/g,

        // parsing token regexes
        parseTokenOneOrTwoDigits = /\d\d?/, // 0 - 99
        parseTokenOneToThreeDigits = /\d{1,3}/, // 0 - 999
        parseTokenOneToFourDigits = /\d{1,4}/, // 0 - 9999
        parseTokenOneToSixDigits = /[+\-]?\d{1,6}/, // -999,999 - 999,999
        parseTokenDigits = /\d+/, // nonzero number of digits
        parseTokenWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i, // any word (or two) characters or numbers including two/three word month in arabic.
        parseTokenTimezone = /Z|[\+\-]\d\d:?\d\d/gi, // +00:00 -00:00 +0000 -0000 or Z
        parseTokenT = /T/i, // T (ISO separator)
        parseTokenTimestampMs = /[\+\-]?\d+(\.\d{1,3})?/, // 123456789 123456789.123
        parseTokenOrdinal = /\d{1,2}/,

        //strict parsing regexes
        parseTokenOneDigit = /\d/, // 0 - 9
        parseTokenTwoDigits = /\d\d/, // 00 - 99
        parseTokenThreeDigits = /\d{3}/, // 000 - 999
        parseTokenFourDigits = /\d{4}/, // 0000 - 9999
        parseTokenSixDigits = /[+-]?\d{6}/, // -999,999 - 999,999
        parseTokenSignedNumber = /[+-]?\d+/, // -inf - inf

        // iso 8601 regex
        // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
        isoRegex = /^\s*(?:[+-]\d{6}|\d{4})-(?:(\d\d-\d\d)|(W\d\d$)|(W\d\d-\d)|(\d\d\d))((T| )(\d\d(:\d\d(:\d\d(\.\d+)?)?)?)?([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/,

        isoFormat = 'YYYY-MM-DDTHH:mm:ssZ',

        isoDates = [
            ['YYYYYY-MM-DD', /[+-]\d{6}-\d{2}-\d{2}/],
            ['YYYY-MM-DD', /\d{4}-\d{2}-\d{2}/],
            ['GGGG-[W]WW-E', /\d{4}-W\d{2}-\d/],
            ['GGGG-[W]WW', /\d{4}-W\d{2}/],
            ['YYYY-DDD', /\d{4}-\d{3}/]
        ],

        // iso time formats and regexes
        isoTimes = [
            ['HH:mm:ss.SSSS', /(T| )\d\d:\d\d:\d\d\.\d+/],
            ['HH:mm:ss', /(T| )\d\d:\d\d:\d\d/],
            ['HH:mm', /(T| )\d\d:\d\d/],
            ['HH', /(T| )\d\d/]
        ],

        // timezone chunker '+10:00' > ['10', '00'] or '-1530' > ['-15', '30']
        parseTimezoneChunker = /([\+\-]|\d\d)/gi,

        // getter and setter names
        proxyGettersAndSetters = 'Date|Hours|Minutes|Seconds|Milliseconds'.split('|'),
        unitMillisecondFactors = {
            'Milliseconds' : 1,
            'Seconds' : 1e3,
            'Minutes' : 6e4,
            'Hours' : 36e5,
            'Days' : 864e5,
            'Months' : 2592e6,
            'Years' : 31536e6
        },

        unitAliases = {
            ms : 'millisecond',
            s : 'second',
            m : 'minute',
            h : 'hour',
            d : 'day',
            D : 'date',
            w : 'week',
            W : 'isoWeek',
            M : 'month',
            Q : 'quarter',
            y : 'year',
            DDD : 'dayOfYear',
            e : 'weekday',
            E : 'isoWeekday',
            gg: 'weekYear',
            GG: 'isoWeekYear'
        },

        camelFunctions = {
            dayofyear : 'dayOfYear',
            isoweekday : 'isoWeekday',
            isoweek : 'isoWeek',
            weekyear : 'weekYear',
            isoweekyear : 'isoWeekYear'
        },

        // format function strings
        formatFunctions = {},

        // default relative time thresholds
        relativeTimeThresholds = {
            s: 45,  // seconds to minute
            m: 45,  // minutes to hour
            h: 22,  // hours to day
            d: 26,  // days to month
            M: 11   // months to year
        },

        // tokens to ordinalize and pad
        ordinalizeTokens = 'DDD w W M D d'.split(' '),
        paddedTokens = 'M D H h m s w W'.split(' '),

        formatTokenFunctions = {
            M    : function () {
                return this.month() + 1;
            },
            MMM  : function (format) {
                return this.localeData().monthsShort(this, format);
            },
            MMMM : function (format) {
                return this.localeData().months(this, format);
            },
            D    : function () {
                return this.date();
            },
            DDD  : function () {
                return this.dayOfYear();
            },
            d    : function () {
                return this.day();
            },
            dd   : function (format) {
                return this.localeData().weekdaysMin(this, format);
            },
            ddd  : function (format) {
                return this.localeData().weekdaysShort(this, format);
            },
            dddd : function (format) {
                return this.localeData().weekdays(this, format);
            },
            w    : function () {
                return this.week();
            },
            W    : function () {
                return this.isoWeek();
            },
            YY   : function () {
                return leftZeroFill(this.year() % 100, 2);
            },
            YYYY : function () {
                return leftZeroFill(this.year(), 4);
            },
            YYYYY : function () {
                return leftZeroFill(this.year(), 5);
            },
            YYYYYY : function () {
                var y = this.year(), sign = y >= 0 ? '+' : '-';
                return sign + leftZeroFill(Math.abs(y), 6);
            },
            gg   : function () {
                return leftZeroFill(this.weekYear() % 100, 2);
            },
            gggg : function () {
                return leftZeroFill(this.weekYear(), 4);
            },
            ggggg : function () {
                return leftZeroFill(this.weekYear(), 5);
            },
            GG   : function () {
                return leftZeroFill(this.isoWeekYear() % 100, 2);
            },
            GGGG : function () {
                return leftZeroFill(this.isoWeekYear(), 4);
            },
            GGGGG : function () {
                return leftZeroFill(this.isoWeekYear(), 5);
            },
            e : function () {
                return this.weekday();
            },
            E : function () {
                return this.isoWeekday();
            },
            a    : function () {
                return this.localeData().meridiem(this.hours(), this.minutes(), true);
            },
            A    : function () {
                return this.localeData().meridiem(this.hours(), this.minutes(), false);
            },
            H    : function () {
                return this.hours();
            },
            h    : function () {
                return this.hours() % 12 || 12;
            },
            m    : function () {
                return this.minutes();
            },
            s    : function () {
                return this.seconds();
            },
            S    : function () {
                return toInt(this.milliseconds() / 100);
            },
            SS   : function () {
                return leftZeroFill(toInt(this.milliseconds() / 10), 2);
            },
            SSS  : function () {
                return leftZeroFill(this.milliseconds(), 3);
            },
            SSSS : function () {
                return leftZeroFill(this.milliseconds(), 3);
            },
            Z    : function () {
                var a = -this.zone(),
                    b = '+';
                if (a < 0) {
                    a = -a;
                    b = '-';
                }
                return b + leftZeroFill(toInt(a / 60), 2) + ':' + leftZeroFill(toInt(a) % 60, 2);
            },
            ZZ   : function () {
                var a = -this.zone(),
                    b = '+';
                if (a < 0) {
                    a = -a;
                    b = '-';
                }
                return b + leftZeroFill(toInt(a / 60), 2) + leftZeroFill(toInt(a) % 60, 2);
            },
            z : function () {
                return this.zoneAbbr();
            },
            zz : function () {
                return this.zoneName();
            },
            X    : function () {
                return this.unix();
            },
            Q : function () {
                return this.quarter();
            }
        },

        deprecations = {},

        lists = ['months', 'monthsShort', 'weekdays', 'weekdaysShort', 'weekdaysMin'];

    // Pick the first defined of two or three arguments. dfl comes from
    // default.
    function dfl(a, b, c) {
        switch (arguments.length) {
            case 2: return a != null ? a : b;
            case 3: return a != null ? a : b != null ? b : c;
            default: throw new Error('Implement me');
        }
    }

    function hasOwnProp(a, b) {
        return hasOwnProperty.call(a, b);
    }

    function defaultParsingFlags() {
        // We need to deep clone this object, and es5 standard is not very
        // helpful.
        return {
            empty : false,
            unusedTokens : [],
            unusedInput : [],
            overflow : -2,
            charsLeftOver : 0,
            nullInput : false,
            invalidMonth : null,
            invalidFormat : false,
            userInvalidated : false,
            iso: false
        };
    }

    function printMsg(msg) {
        if (moment.suppressDeprecationWarnings === false &&
                typeof console !== 'undefined' && console.warn) {
            console.warn('Deprecation warning: ' + msg);
        }
    }

    function deprecate(msg, fn) {
        var firstTime = true;
        return extend(function () {
            if (firstTime) {
                printMsg(msg);
                firstTime = false;
            }
            return fn.apply(this, arguments);
        }, fn);
    }

    function deprecateSimple(name, msg) {
        if (!deprecations[name]) {
            printMsg(msg);
            deprecations[name] = true;
        }
    }

    function padToken(func, count) {
        return function (a) {
            return leftZeroFill(func.call(this, a), count);
        };
    }
    function ordinalizeToken(func, period) {
        return function (a) {
            return this.localeData().ordinal(func.call(this, a), period);
        };
    }

    while (ordinalizeTokens.length) {
        i = ordinalizeTokens.pop();
        formatTokenFunctions[i + 'o'] = ordinalizeToken(formatTokenFunctions[i], i);
    }
    while (paddedTokens.length) {
        i = paddedTokens.pop();
        formatTokenFunctions[i + i] = padToken(formatTokenFunctions[i], 2);
    }
    formatTokenFunctions.DDDD = padToken(formatTokenFunctions.DDD, 3);


    /************************************
        Constructors
    ************************************/

    function Locale() {
    }

    // Moment prototype object
    function Moment(config, skipOverflow) {
        if (skipOverflow !== false) {
            checkOverflow(config);
        }
        copyConfig(this, config);
        this._d = new Date(+config._d);
    }

    // Duration Constructor
    function Duration(duration) {
        var normalizedInput = normalizeObjectUnits(duration),
            years = normalizedInput.year || 0,
            quarters = normalizedInput.quarter || 0,
            months = normalizedInput.month || 0,
            weeks = normalizedInput.week || 0,
            days = normalizedInput.day || 0,
            hours = normalizedInput.hour || 0,
            minutes = normalizedInput.minute || 0,
            seconds = normalizedInput.second || 0,
            milliseconds = normalizedInput.millisecond || 0;

        // representation for dateAddRemove
        this._milliseconds = +milliseconds +
            seconds * 1e3 + // 1000
            minutes * 6e4 + // 1000 * 60
            hours * 36e5; // 1000 * 60 * 60
        // Because of dateAddRemove treats 24 hours as different from a
        // day when working around DST, we need to store them separately
        this._days = +days +
            weeks * 7;
        // It is impossible translate months into days without knowing
        // which months you are are talking about, so we have to store
        // it separately.
        this._months = +months +
            quarters * 3 +
            years * 12;

        this._data = {};

        this._locale = moment.localeData();

        this._bubble();
    }

    /************************************
        Helpers
    ************************************/


    function extend(a, b) {
        for (var i in b) {
            if (hasOwnProp(b, i)) {
                a[i] = b[i];
            }
        }

        if (hasOwnProp(b, 'toString')) {
            a.toString = b.toString;
        }

        if (hasOwnProp(b, 'valueOf')) {
            a.valueOf = b.valueOf;
        }

        return a;
    }

    function copyConfig(to, from) {
        var i, prop, val;

        if (typeof from._isAMomentObject !== 'undefined') {
            to._isAMomentObject = from._isAMomentObject;
        }
        if (typeof from._i !== 'undefined') {
            to._i = from._i;
        }
        if (typeof from._f !== 'undefined') {
            to._f = from._f;
        }
        if (typeof from._l !== 'undefined') {
            to._l = from._l;
        }
        if (typeof from._strict !== 'undefined') {
            to._strict = from._strict;
        }
        if (typeof from._tzm !== 'undefined') {
            to._tzm = from._tzm;
        }
        if (typeof from._isUTC !== 'undefined') {
            to._isUTC = from._isUTC;
        }
        if (typeof from._offset !== 'undefined') {
            to._offset = from._offset;
        }
        if (typeof from._pf !== 'undefined') {
            to._pf = from._pf;
        }
        if (typeof from._locale !== 'undefined') {
            to._locale = from._locale;
        }

        if (momentProperties.length > 0) {
            for (i in momentProperties) {
                prop = momentProperties[i];
                val = from[prop];
                if (typeof val !== 'undefined') {
                    to[prop] = val;
                }
            }
        }

        return to;
    }

    function absRound(number) {
        if (number < 0) {
            return Math.ceil(number);
        } else {
            return Math.floor(number);
        }
    }

    // left zero fill a number
    // see http://jsperf.com/left-zero-filling for performance comparison
    function leftZeroFill(number, targetLength, forceSign) {
        var output = '' + Math.abs(number),
            sign = number >= 0;

        while (output.length < targetLength) {
            output = '0' + output;
        }
        return (sign ? (forceSign ? '+' : '') : '-') + output;
    }

    function positiveMomentsDifference(base, other) {
        var res = {milliseconds: 0, months: 0};

        res.months = other.month() - base.month() +
            (other.year() - base.year()) * 12;
        if (base.clone().add(res.months, 'M').isAfter(other)) {
            --res.months;
        }

        res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

        return res;
    }

    function momentsDifference(base, other) {
        var res;
        other = makeAs(other, base);
        if (base.isBefore(other)) {
            res = positiveMomentsDifference(base, other);
        } else {
            res = positiveMomentsDifference(other, base);
            res.milliseconds = -res.milliseconds;
            res.months = -res.months;
        }

        return res;
    }

    // TODO: remove 'name' arg after deprecation is removed
    function createAdder(direction, name) {
        return function (val, period) {
            var dur, tmp;
            //invert the arguments, but complain about it
            if (period !== null && !isNaN(+period)) {
                deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period).');
                tmp = val; val = period; period = tmp;
            }

            val = typeof val === 'string' ? +val : val;
            dur = moment.duration(val, period);
            addOrSubtractDurationFromMoment(this, dur, direction);
            return this;
        };
    }

    function addOrSubtractDurationFromMoment(mom, duration, isAdding, updateOffset) {
        var milliseconds = duration._milliseconds,
            days = duration._days,
            months = duration._months;
        updateOffset = updateOffset == null ? true : updateOffset;

        if (milliseconds) {
            mom._d.setTime(+mom._d + milliseconds * isAdding);
        }
        if (days) {
            rawSetter(mom, 'Date', rawGetter(mom, 'Date') + days * isAdding);
        }
        if (months) {
            rawMonthSetter(mom, rawGetter(mom, 'Month') + months * isAdding);
        }
        if (updateOffset) {
            moment.updateOffset(mom, days || months);
        }
    }

    // check if is an array
    function isArray(input) {
        return Object.prototype.toString.call(input) === '[object Array]';
    }

    function isDate(input) {
        return Object.prototype.toString.call(input) === '[object Date]' ||
            input instanceof Date;
    }

    // compare two arrays, return the number of differences
    function compareArrays(array1, array2, dontConvert) {
        var len = Math.min(array1.length, array2.length),
            lengthDiff = Math.abs(array1.length - array2.length),
            diffs = 0,
            i;
        for (i = 0; i < len; i++) {
            if ((dontConvert && array1[i] !== array2[i]) ||
                (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
                diffs++;
            }
        }
        return diffs + lengthDiff;
    }

    function normalizeUnits(units) {
        if (units) {
            var lowered = units.toLowerCase().replace(/(.)s$/, '$1');
            units = unitAliases[units] || camelFunctions[lowered] || lowered;
        }
        return units;
    }

    function normalizeObjectUnits(inputObject) {
        var normalizedInput = {},
            normalizedProp,
            prop;

        for (prop in inputObject) {
            if (hasOwnProp(inputObject, prop)) {
                normalizedProp = normalizeUnits(prop);
                if (normalizedProp) {
                    normalizedInput[normalizedProp] = inputObject[prop];
                }
            }
        }

        return normalizedInput;
    }

    function makeList(field) {
        var count, setter;

        if (field.indexOf('week') === 0) {
            count = 7;
            setter = 'day';
        }
        else if (field.indexOf('month') === 0) {
            count = 12;
            setter = 'month';
        }
        else {
            return;
        }

        moment[field] = function (format, index) {
            var i, getter,
                method = moment._locale[field],
                results = [];

            if (typeof format === 'number') {
                index = format;
                format = undefined;
            }

            getter = function (i) {
                var m = moment().utc().set(setter, i);
                return method.call(moment._locale, m, format || '');
            };

            if (index != null) {
                return getter(index);
            }
            else {
                for (i = 0; i < count; i++) {
                    results.push(getter(i));
                }
                return results;
            }
        };
    }

    function toInt(argumentForCoercion) {
        var coercedNumber = +argumentForCoercion,
            value = 0;

        if (coercedNumber !== 0 && isFinite(coercedNumber)) {
            if (coercedNumber >= 0) {
                value = Math.floor(coercedNumber);
            } else {
                value = Math.ceil(coercedNumber);
            }
        }

        return value;
    }

    function daysInMonth(year, month) {
        return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
    }

    function weeksInYear(year, dow, doy) {
        return weekOfYear(moment([year, 11, 31 + dow - doy]), dow, doy).week;
    }

    function daysInYear(year) {
        return isLeapYear(year) ? 366 : 365;
    }

    function isLeapYear(year) {
        return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
    }

    function checkOverflow(m) {
        var overflow;
        if (m._a && m._pf.overflow === -2) {
            overflow =
                m._a[MONTH] < 0 || m._a[MONTH] > 11 ? MONTH :
                m._a[DATE] < 1 || m._a[DATE] > daysInMonth(m._a[YEAR], m._a[MONTH]) ? DATE :
                m._a[HOUR] < 0 || m._a[HOUR] > 23 ? HOUR :
                m._a[MINUTE] < 0 || m._a[MINUTE] > 59 ? MINUTE :
                m._a[SECOND] < 0 || m._a[SECOND] > 59 ? SECOND :
                m._a[MILLISECOND] < 0 || m._a[MILLISECOND] > 999 ? MILLISECOND :
                -1;

            if (m._pf._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
                overflow = DATE;
            }

            m._pf.overflow = overflow;
        }
    }

    function isValid(m) {
        if (m._isValid == null) {
            m._isValid = !isNaN(m._d.getTime()) &&
                m._pf.overflow < 0 &&
                !m._pf.empty &&
                !m._pf.invalidMonth &&
                !m._pf.nullInput &&
                !m._pf.invalidFormat &&
                !m._pf.userInvalidated;

            if (m._strict) {
                m._isValid = m._isValid &&
                    m._pf.charsLeftOver === 0 &&
                    m._pf.unusedTokens.length === 0;
            }
        }
        return m._isValid;
    }

    function normalizeLocale(key) {
        return key ? key.toLowerCase().replace('_', '-') : key;
    }

    // pick the locale from the array
    // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
    // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
    function chooseLocale(names) {
        var i = 0, j, next, locale, split;

        while (i < names.length) {
            split = normalizeLocale(names[i]).split('-');
            j = split.length;
            next = normalizeLocale(names[i + 1]);
            next = next ? next.split('-') : null;
            while (j > 0) {
                locale = loadLocale(split.slice(0, j).join('-'));
                if (locale) {
                    return locale;
                }
                if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                    //the next array item is better than a shallower substring of this one
                    break;
                }
                j--;
            }
            i++;
        }
        return null;
    }

    function loadLocale(name) {
        var oldLocale = null;
        if (!locales[name] && hasModule) {
            try {
                oldLocale = moment.locale();
                require('./locale/' + name);
                // because defineLocale currently also sets the global locale, we want to undo that for lazy loaded locales
                moment.locale(oldLocale);
            } catch (e) { }
        }
        return locales[name];
    }

    // Return a moment from input, that is local/utc/zone equivalent to model.
    function makeAs(input, model) {
        return model._isUTC ? moment(input).zone(model._offset || 0) :
            moment(input).local();
    }

    /************************************
        Locale
    ************************************/


    extend(Locale.prototype, {

        set : function (config) {
            var prop, i;
            for (i in config) {
                prop = config[i];
                if (typeof prop === 'function') {
                    this[i] = prop;
                } else {
                    this['_' + i] = prop;
                }
            }
        },

        _months : 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_'),
        months : function (m) {
            return this._months[m.month()];
        },

        _monthsShort : 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_'),
        monthsShort : function (m) {
            return this._monthsShort[m.month()];
        },

        monthsParse : function (monthName) {
            var i, mom, regex;

            if (!this._monthsParse) {
                this._monthsParse = [];
            }

            for (i = 0; i < 12; i++) {
                // make the regex if we don't have it already
                if (!this._monthsParse[i]) {
                    mom = moment.utc([2000, i]);
                    regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
                    this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
                }
                // test the regex
                if (this._monthsParse[i].test(monthName)) {
                    return i;
                }
            }
        },

        _weekdays : 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_'),
        weekdays : function (m) {
            return this._weekdays[m.day()];
        },

        _weekdaysShort : 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),
        weekdaysShort : function (m) {
            return this._weekdaysShort[m.day()];
        },

        _weekdaysMin : 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),
        weekdaysMin : function (m) {
            return this._weekdaysMin[m.day()];
        },

        weekdaysParse : function (weekdayName) {
            var i, mom, regex;

            if (!this._weekdaysParse) {
                this._weekdaysParse = [];
            }

            for (i = 0; i < 7; i++) {
                // make the regex if we don't have it already
                if (!this._weekdaysParse[i]) {
                    mom = moment([2000, 1]).day(i);
                    regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
                    this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
                }
                // test the regex
                if (this._weekdaysParse[i].test(weekdayName)) {
                    return i;
                }
            }
        },

        _longDateFormat : {
            LT : 'h:mm A',
            L : 'MM/DD/YYYY',
            LL : 'MMMM D, YYYY',
            LLL : 'MMMM D, YYYY LT',
            LLLL : 'dddd, MMMM D, YYYY LT'
        },
        longDateFormat : function (key) {
            var output = this._longDateFormat[key];
            if (!output && this._longDateFormat[key.toUpperCase()]) {
                output = this._longDateFormat[key.toUpperCase()].replace(/MMMM|MM|DD|dddd/g, function (val) {
                    return val.slice(1);
                });
                this._longDateFormat[key] = output;
            }
            return output;
        },

        isPM : function (input) {
            // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
            // Using charAt should be more compatible.
            return ((input + '').toLowerCase().charAt(0) === 'p');
        },

        _meridiemParse : /[ap]\.?m?\.?/i,
        meridiem : function (hours, minutes, isLower) {
            if (hours > 11) {
                return isLower ? 'pm' : 'PM';
            } else {
                return isLower ? 'am' : 'AM';
            }
        },

        _calendar : {
            sameDay : '[Today at] LT',
            nextDay : '[Tomorrow at] LT',
            nextWeek : 'dddd [at] LT',
            lastDay : '[Yesterday at] LT',
            lastWeek : '[Last] dddd [at] LT',
            sameElse : 'L'
        },
        calendar : function (key, mom) {
            var output = this._calendar[key];
            return typeof output === 'function' ? output.apply(mom) : output;
        },

        _relativeTime : {
            future : 'in %s',
            past : '%s ago',
            s : 'a few seconds',
            m : 'a minute',
            mm : '%d minutes',
            h : 'an hour',
            hh : '%d hours',
            d : 'a day',
            dd : '%d days',
            M : 'a month',
            MM : '%d months',
            y : 'a year',
            yy : '%d years'
        },

        relativeTime : function (number, withoutSuffix, string, isFuture) {
            var output = this._relativeTime[string];
            return (typeof output === 'function') ?
                output(number, withoutSuffix, string, isFuture) :
                output.replace(/%d/i, number);
        },

        pastFuture : function (diff, output) {
            var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
            return typeof format === 'function' ? format(output) : format.replace(/%s/i, output);
        },

        ordinal : function (number) {
            return this._ordinal.replace('%d', number);
        },
        _ordinal : '%d',

        preparse : function (string) {
            return string;
        },

        postformat : function (string) {
            return string;
        },

        week : function (mom) {
            return weekOfYear(mom, this._week.dow, this._week.doy).week;
        },

        _week : {
            dow : 0, // Sunday is the first day of the week.
            doy : 6  // The week that contains Jan 1st is the first week of the year.
        },

        _invalidDate: 'Invalid date',
        invalidDate: function () {
            return this._invalidDate;
        }
    });

    /************************************
        Formatting
    ************************************/


    function removeFormattingTokens(input) {
        if (input.match(/\[[\s\S]/)) {
            return input.replace(/^\[|\]$/g, '');
        }
        return input.replace(/\\/g, '');
    }

    function makeFormatFunction(format) {
        var array = format.match(formattingTokens), i, length;

        for (i = 0, length = array.length; i < length; i++) {
            if (formatTokenFunctions[array[i]]) {
                array[i] = formatTokenFunctions[array[i]];
            } else {
                array[i] = removeFormattingTokens(array[i]);
            }
        }

        return function (mom) {
            var output = '';
            for (i = 0; i < length; i++) {
                output += array[i] instanceof Function ? array[i].call(mom, format) : array[i];
            }
            return output;
        };
    }

    // format date using native date object
    function formatMoment(m, format) {
        if (!m.isValid()) {
            return m.localeData().invalidDate();
        }

        format = expandFormat(format, m.localeData());

        if (!formatFunctions[format]) {
            formatFunctions[format] = makeFormatFunction(format);
        }

        return formatFunctions[format](m);
    }

    function expandFormat(format, locale) {
        var i = 5;

        function replaceLongDateFormatTokens(input) {
            return locale.longDateFormat(input) || input;
        }

        localFormattingTokens.lastIndex = 0;
        while (i >= 0 && localFormattingTokens.test(format)) {
            format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
            localFormattingTokens.lastIndex = 0;
            i -= 1;
        }

        return format;
    }


    /************************************
        Parsing
    ************************************/


    // get the regex to find the next token
    function getParseRegexForToken(token, config) {
        var a, strict = config._strict;
        switch (token) {
        case 'Q':
            return parseTokenOneDigit;
        case 'DDDD':
            return parseTokenThreeDigits;
        case 'YYYY':
        case 'GGGG':
        case 'gggg':
            return strict ? parseTokenFourDigits : parseTokenOneToFourDigits;
        case 'Y':
        case 'G':
        case 'g':
            return parseTokenSignedNumber;
        case 'YYYYYY':
        case 'YYYYY':
        case 'GGGGG':
        case 'ggggg':
            return strict ? parseTokenSixDigits : parseTokenOneToSixDigits;
        case 'S':
            if (strict) {
                return parseTokenOneDigit;
            }
            /* falls through */
        case 'SS':
            if (strict) {
                return parseTokenTwoDigits;
            }
            /* falls through */
        case 'SSS':
            if (strict) {
                return parseTokenThreeDigits;
            }
            /* falls through */
        case 'DDD':
            return parseTokenOneToThreeDigits;
        case 'MMM':
        case 'MMMM':
        case 'dd':
        case 'ddd':
        case 'dddd':
            return parseTokenWord;
        case 'a':
        case 'A':
            return config._locale._meridiemParse;
        case 'X':
            return parseTokenTimestampMs;
        case 'Z':
        case 'ZZ':
            return parseTokenTimezone;
        case 'T':
            return parseTokenT;
        case 'SSSS':
            return parseTokenDigits;
        case 'MM':
        case 'DD':
        case 'YY':
        case 'GG':
        case 'gg':
        case 'HH':
        case 'hh':
        case 'mm':
        case 'ss':
        case 'ww':
        case 'WW':
            return strict ? parseTokenTwoDigits : parseTokenOneOrTwoDigits;
        case 'M':
        case 'D':
        case 'd':
        case 'H':
        case 'h':
        case 'm':
        case 's':
        case 'w':
        case 'W':
        case 'e':
        case 'E':
            return parseTokenOneOrTwoDigits;
        case 'Do':
            return parseTokenOrdinal;
        default :
            a = new RegExp(regexpEscape(unescapeFormat(token.replace('\\', '')), 'i'));
            return a;
        }
    }

    function timezoneMinutesFromString(string) {
        string = string || '';
        var possibleTzMatches = (string.match(parseTokenTimezone) || []),
            tzChunk = possibleTzMatches[possibleTzMatches.length - 1] || [],
            parts = (tzChunk + '').match(parseTimezoneChunker) || ['-', 0, 0],
            minutes = +(parts[1] * 60) + toInt(parts[2]);

        return parts[0] === '+' ? -minutes : minutes;
    }

    // function to convert string input to date
    function addTimeToArrayFromToken(token, input, config) {
        var a, datePartArray = config._a;

        switch (token) {
        // QUARTER
        case 'Q':
            if (input != null) {
                datePartArray[MONTH] = (toInt(input) - 1) * 3;
            }
            break;
        // MONTH
        case 'M' : // fall through to MM
        case 'MM' :
            if (input != null) {
                datePartArray[MONTH] = toInt(input) - 1;
            }
            break;
        case 'MMM' : // fall through to MMMM
        case 'MMMM' :
            a = config._locale.monthsParse(input);
            // if we didn't find a month name, mark the date as invalid.
            if (a != null) {
                datePartArray[MONTH] = a;
            } else {
                config._pf.invalidMonth = input;
            }
            break;
        // DAY OF MONTH
        case 'D' : // fall through to DD
        case 'DD' :
            if (input != null) {
                datePartArray[DATE] = toInt(input);
            }
            break;
        case 'Do' :
            if (input != null) {
                datePartArray[DATE] = toInt(parseInt(input, 10));
            }
            break;
        // DAY OF YEAR
        case 'DDD' : // fall through to DDDD
        case 'DDDD' :
            if (input != null) {
                config._dayOfYear = toInt(input);
            }

            break;
        // YEAR
        case 'YY' :
            datePartArray[YEAR] = moment.parseTwoDigitYear(input);
            break;
        case 'YYYY' :
        case 'YYYYY' :
        case 'YYYYYY' :
            datePartArray[YEAR] = toInt(input);
            break;
        // AM / PM
        case 'a' : // fall through to A
        case 'A' :
            config._isPm = config._locale.isPM(input);
            break;
        // 24 HOUR
        case 'H' : // fall through to hh
        case 'HH' : // fall through to hh
        case 'h' : // fall through to hh
        case 'hh' :
            datePartArray[HOUR] = toInt(input);
            break;
        // MINUTE
        case 'm' : // fall through to mm
        case 'mm' :
            datePartArray[MINUTE] = toInt(input);
            break;
        // SECOND
        case 's' : // fall through to ss
        case 'ss' :
            datePartArray[SECOND] = toInt(input);
            break;
        // MILLISECOND
        case 'S' :
        case 'SS' :
        case 'SSS' :
        case 'SSSS' :
            datePartArray[MILLISECOND] = toInt(('0.' + input) * 1000);
            break;
        // UNIX TIMESTAMP WITH MS
        case 'X':
            config._d = new Date(parseFloat(input) * 1000);
            break;
        // TIMEZONE
        case 'Z' : // fall through to ZZ
        case 'ZZ' :
            config._useUTC = true;
            config._tzm = timezoneMinutesFromString(input);
            break;
        // WEEKDAY - human
        case 'dd':
        case 'ddd':
        case 'dddd':
            a = config._locale.weekdaysParse(input);
            // if we didn't get a weekday name, mark the date as invalid
            if (a != null) {
                config._w = config._w || {};
                config._w['d'] = a;
            } else {
                config._pf.invalidWeekday = input;
            }
            break;
        // WEEK, WEEK DAY - numeric
        case 'w':
        case 'ww':
        case 'W':
        case 'WW':
        case 'd':
        case 'e':
        case 'E':
            token = token.substr(0, 1);
            /* falls through */
        case 'gggg':
        case 'GGGG':
        case 'GGGGG':
            token = token.substr(0, 2);
            if (input) {
                config._w = config._w || {};
                config._w[token] = toInt(input);
            }
            break;
        case 'gg':
        case 'GG':
            config._w = config._w || {};
            config._w[token] = moment.parseTwoDigitYear(input);
        }
    }

    function dayOfYearFromWeekInfo(config) {
        var w, weekYear, week, weekday, dow, doy, temp;

        w = config._w;
        if (w.GG != null || w.W != null || w.E != null) {
            dow = 1;
            doy = 4;

            // TODO: We need to take the current isoWeekYear, but that depends on
            // how we interpret now (local, utc, fixed offset). So create
            // a now version of current config (take local/utc/offset flags, and
            // create now).
            weekYear = dfl(w.GG, config._a[YEAR], weekOfYear(moment(), 1, 4).year);
            week = dfl(w.W, 1);
            weekday = dfl(w.E, 1);
        } else {
            dow = config._locale._week.dow;
            doy = config._locale._week.doy;

            weekYear = dfl(w.gg, config._a[YEAR], weekOfYear(moment(), dow, doy).year);
            week = dfl(w.w, 1);

            if (w.d != null) {
                // weekday -- low day numbers are considered next week
                weekday = w.d;
                if (weekday < dow) {
                    ++week;
                }
            } else if (w.e != null) {
                // local weekday -- counting starts from begining of week
                weekday = w.e + dow;
            } else {
                // default to begining of week
                weekday = dow;
            }
        }
        temp = dayOfYearFromWeeks(weekYear, week, weekday, doy, dow);

        config._a[YEAR] = temp.year;
        config._dayOfYear = temp.dayOfYear;
    }

    // convert an array to a date.
    // the array should mirror the parameters below
    // note: all values past the year are optional and will default to the lowest possible value.
    // [year, month, day , hour, minute, second, millisecond]
    function dateFromConfig(config) {
        var i, date, input = [], currentDate, yearToUse;

        if (config._d) {
            return;
        }

        currentDate = currentDateArray(config);

        //compute day of the year from weeks and weekdays
        if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
            dayOfYearFromWeekInfo(config);
        }

        //if the day of the year is set, figure out what it is
        if (config._dayOfYear) {
            yearToUse = dfl(config._a[YEAR], currentDate[YEAR]);

            if (config._dayOfYear > daysInYear(yearToUse)) {
                config._pf._overflowDayOfYear = true;
            }

            date = makeUTCDate(yearToUse, 0, config._dayOfYear);
            config._a[MONTH] = date.getUTCMonth();
            config._a[DATE] = date.getUTCDate();
        }

        // Default to current date.
        // * if no year, month, day of month are given, default to today
        // * if day of month is given, default month and year
        // * if month is given, default only year
        // * if year is given, don't default anything
        for (i = 0; i < 3 && config._a[i] == null; ++i) {
            config._a[i] = input[i] = currentDate[i];
        }

        // Zero out whatever was not defaulted, including time
        for (; i < 7; i++) {
            config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
        }

        config._d = (config._useUTC ? makeUTCDate : makeDate).apply(null, input);
        // Apply timezone offset from input. The actual zone can be changed
        // with parseZone.
        if (config._tzm != null) {
            config._d.setUTCMinutes(config._d.getUTCMinutes() + config._tzm);
        }
    }

    function dateFromObject(config) {
        var normalizedInput;

        if (config._d) {
            return;
        }

        normalizedInput = normalizeObjectUnits(config._i);
        config._a = [
            normalizedInput.year,
            normalizedInput.month,
            normalizedInput.day,
            normalizedInput.hour,
            normalizedInput.minute,
            normalizedInput.second,
            normalizedInput.millisecond
        ];

        dateFromConfig(config);
    }

    function currentDateArray(config) {
        var now = new Date();
        if (config._useUTC) {
            return [
                now.getUTCFullYear(),
                now.getUTCMonth(),
                now.getUTCDate()
            ];
        } else {
            return [now.getFullYear(), now.getMonth(), now.getDate()];
        }
    }

    // date from string and format string
    function makeDateFromStringAndFormat(config) {
        if (config._f === moment.ISO_8601) {
            parseISO(config);
            return;
        }

        config._a = [];
        config._pf.empty = true;

        // This array is used to make a Date, either with `new Date` or `Date.UTC`
        var string = '' + config._i,
            i, parsedInput, tokens, token, skipped,
            stringLength = string.length,
            totalParsedInputLength = 0;

        tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

        for (i = 0; i < tokens.length; i++) {
            token = tokens[i];
            parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
            if (parsedInput) {
                skipped = string.substr(0, string.indexOf(parsedInput));
                if (skipped.length > 0) {
                    config._pf.unusedInput.push(skipped);
                }
                string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
                totalParsedInputLength += parsedInput.length;
            }
            // don't parse if it's not a known token
            if (formatTokenFunctions[token]) {
                if (parsedInput) {
                    config._pf.empty = false;
                }
                else {
                    config._pf.unusedTokens.push(token);
                }
                addTimeToArrayFromToken(token, parsedInput, config);
            }
            else if (config._strict && !parsedInput) {
                config._pf.unusedTokens.push(token);
            }
        }

        // add remaining unparsed input length to the string
        config._pf.charsLeftOver = stringLength - totalParsedInputLength;
        if (string.length > 0) {
            config._pf.unusedInput.push(string);
        }

        // handle am pm
        if (config._isPm && config._a[HOUR] < 12) {
            config._a[HOUR] += 12;
        }
        // if is 12 am, change hours to 0
        if (config._isPm === false && config._a[HOUR] === 12) {
            config._a[HOUR] = 0;
        }

        dateFromConfig(config);
        checkOverflow(config);
    }

    function unescapeFormat(s) {
        return s.replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
            return p1 || p2 || p3 || p4;
        });
    }

    // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
    function regexpEscape(s) {
        return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
    }

    // date from string and array of format strings
    function makeDateFromStringAndArray(config) {
        var tempConfig,
            bestMoment,

            scoreToBeat,
            i,
            currentScore;

        if (config._f.length === 0) {
            config._pf.invalidFormat = true;
            config._d = new Date(NaN);
            return;
        }

        for (i = 0; i < config._f.length; i++) {
            currentScore = 0;
            tempConfig = copyConfig({}, config);
            if (config._useUTC != null) {
                tempConfig._useUTC = config._useUTC;
            }
            tempConfig._pf = defaultParsingFlags();
            tempConfig._f = config._f[i];
            makeDateFromStringAndFormat(tempConfig);

            if (!isValid(tempConfig)) {
                continue;
            }

            // if there is any input that was not parsed add a penalty for that format
            currentScore += tempConfig._pf.charsLeftOver;

            //or tokens
            currentScore += tempConfig._pf.unusedTokens.length * 10;

            tempConfig._pf.score = currentScore;

            if (scoreToBeat == null || currentScore < scoreToBeat) {
                scoreToBeat = currentScore;
                bestMoment = tempConfig;
            }
        }

        extend(config, bestMoment || tempConfig);
    }

    // date from iso format
    function parseISO(config) {
        var i, l,
            string = config._i,
            match = isoRegex.exec(string);

        if (match) {
            config._pf.iso = true;
            for (i = 0, l = isoDates.length; i < l; i++) {
                if (isoDates[i][1].exec(string)) {
                    // match[5] should be 'T' or undefined
                    config._f = isoDates[i][0] + (match[6] || ' ');
                    break;
                }
            }
            for (i = 0, l = isoTimes.length; i < l; i++) {
                if (isoTimes[i][1].exec(string)) {
                    config._f += isoTimes[i][0];
                    break;
                }
            }
            if (string.match(parseTokenTimezone)) {
                config._f += 'Z';
            }
            makeDateFromStringAndFormat(config);
        } else {
            config._isValid = false;
        }
    }

    // date from iso format or fallback
    function makeDateFromString(config) {
        parseISO(config);
        if (config._isValid === false) {
            delete config._isValid;
            moment.createFromInputFallback(config);
        }
    }

    function map(arr, fn) {
        var res = [], i;
        for (i = 0; i < arr.length; ++i) {
            res.push(fn(arr[i], i));
        }
        return res;
    }

    function makeDateFromInput(config) {
        var input = config._i, matched;
        if (input === undefined) {
            config._d = new Date();
        } else if (isDate(input)) {
            config._d = new Date(+input);
        } else if ((matched = aspNetJsonRegex.exec(input)) !== null) {
            config._d = new Date(+matched[1]);
        } else if (typeof input === 'string') {
            makeDateFromString(config);
        } else if (isArray(input)) {
            config._a = map(input.slice(0), function (obj) {
                return parseInt(obj, 10);
            });
            dateFromConfig(config);
        } else if (typeof(input) === 'object') {
            dateFromObject(config);
        } else if (typeof(input) === 'number') {
            // from milliseconds
            config._d = new Date(input);
        } else {
            moment.createFromInputFallback(config);
        }
    }

    function makeDate(y, m, d, h, M, s, ms) {
        //can't just apply() to create a date:
        //http://stackoverflow.com/questions/181348/instantiating-a-javascript-object-by-calling-prototype-constructor-apply
        var date = new Date(y, m, d, h, M, s, ms);

        //the date constructor doesn't accept years < 1970
        if (y < 1970) {
            date.setFullYear(y);
        }
        return date;
    }

    function makeUTCDate(y) {
        var date = new Date(Date.UTC.apply(null, arguments));
        if (y < 1970) {
            date.setUTCFullYear(y);
        }
        return date;
    }

    function parseWeekday(input, locale) {
        if (typeof input === 'string') {
            if (!isNaN(input)) {
                input = parseInt(input, 10);
            }
            else {
                input = locale.weekdaysParse(input);
                if (typeof input !== 'number') {
                    return null;
                }
            }
        }
        return input;
    }

    /************************************
        Relative Time
    ************************************/


    // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
    function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
        return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
    }

    function relativeTime(posNegDuration, withoutSuffix, locale) {
        var duration = moment.duration(posNegDuration).abs(),
            seconds = round(duration.as('s')),
            minutes = round(duration.as('m')),
            hours = round(duration.as('h')),
            days = round(duration.as('d')),
            months = round(duration.as('M')),
            years = round(duration.as('y')),

            args = seconds < relativeTimeThresholds.s && ['s', seconds] ||
                minutes === 1 && ['m'] ||
                minutes < relativeTimeThresholds.m && ['mm', minutes] ||
                hours === 1 && ['h'] ||
                hours < relativeTimeThresholds.h && ['hh', hours] ||
                days === 1 && ['d'] ||
                days < relativeTimeThresholds.d && ['dd', days] ||
                months === 1 && ['M'] ||
                months < relativeTimeThresholds.M && ['MM', months] ||
                years === 1 && ['y'] || ['yy', years];

        args[2] = withoutSuffix;
        args[3] = +posNegDuration > 0;
        args[4] = locale;
        return substituteTimeAgo.apply({}, args);
    }


    /************************************
        Week of Year
    ************************************/


    // firstDayOfWeek       0 = sun, 6 = sat
    //                      the day of the week that starts the week
    //                      (usually sunday or monday)
    // firstDayOfWeekOfYear 0 = sun, 6 = sat
    //                      the first week is the week that contains the first
    //                      of this day of the week
    //                      (eg. ISO weeks use thursday (4))
    function weekOfYear(mom, firstDayOfWeek, firstDayOfWeekOfYear) {
        var end = firstDayOfWeekOfYear - firstDayOfWeek,
            daysToDayOfWeek = firstDayOfWeekOfYear - mom.day(),
            adjustedMoment;


        if (daysToDayOfWeek > end) {
            daysToDayOfWeek -= 7;
        }

        if (daysToDayOfWeek < end - 7) {
            daysToDayOfWeek += 7;
        }

        adjustedMoment = moment(mom).add(daysToDayOfWeek, 'd');
        return {
            week: Math.ceil(adjustedMoment.dayOfYear() / 7),
            year: adjustedMoment.year()
        };
    }

    //http://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
    function dayOfYearFromWeeks(year, week, weekday, firstDayOfWeekOfYear, firstDayOfWeek) {
        var d = makeUTCDate(year, 0, 1).getUTCDay(), daysToAdd, dayOfYear;

        d = d === 0 ? 7 : d;
        weekday = weekday != null ? weekday : firstDayOfWeek;
        daysToAdd = firstDayOfWeek - d + (d > firstDayOfWeekOfYear ? 7 : 0) - (d < firstDayOfWeek ? 7 : 0);
        dayOfYear = 7 * (week - 1) + (weekday - firstDayOfWeek) + daysToAdd + 1;

        return {
            year: dayOfYear > 0 ? year : year - 1,
            dayOfYear: dayOfYear > 0 ?  dayOfYear : daysInYear(year - 1) + dayOfYear
        };
    }

    /************************************
        Top Level Functions
    ************************************/

    function makeMoment(config) {
        var input = config._i,
            format = config._f;

        config._locale = config._locale || moment.localeData(config._l);

        if (input === null || (format === undefined && input === '')) {
            return moment.invalid({nullInput: true});
        }

        if (typeof input === 'string') {
            config._i = input = config._locale.preparse(input);
        }

        if (moment.isMoment(input)) {
            return new Moment(input, true);
        } else if (format) {
            if (isArray(format)) {
                makeDateFromStringAndArray(config);
            } else {
                makeDateFromStringAndFormat(config);
            }
        } else {
            makeDateFromInput(config);
        }

        return new Moment(config);
    }

    moment = function (input, format, locale, strict) {
        var c;

        if (typeof(locale) === 'boolean') {
            strict = locale;
            locale = undefined;
        }
        // object construction must be done this way.
        // https://github.com/moment/moment/issues/1423
        c = {};
        c._isAMomentObject = true;
        c._i = input;
        c._f = format;
        c._l = locale;
        c._strict = strict;
        c._isUTC = false;
        c._pf = defaultParsingFlags();

        return makeMoment(c);
    };

    moment.suppressDeprecationWarnings = false;

    moment.createFromInputFallback = deprecate(
        'moment construction falls back to js Date. This is ' +
        'discouraged and will be removed in upcoming major ' +
        'release. Please refer to ' +
        'https://github.com/moment/moment/issues/1407 for more info.',
        function (config) {
            config._d = new Date(config._i);
        }
    );

    // Pick a moment m from moments so that m[fn](other) is true for all
    // other. This relies on the function fn to be transitive.
    //
    // moments should either be an array of moment objects or an array, whose
    // first element is an array of moment objects.
    function pickBy(fn, moments) {
        var res, i;
        if (moments.length === 1 && isArray(moments[0])) {
            moments = moments[0];
        }
        if (!moments.length) {
            return moment();
        }
        res = moments[0];
        for (i = 1; i < moments.length; ++i) {
            if (moments[i][fn](res)) {
                res = moments[i];
            }
        }
        return res;
    }

    moment.min = function () {
        var args = [].slice.call(arguments, 0);

        return pickBy('isBefore', args);
    };

    moment.max = function () {
        var args = [].slice.call(arguments, 0);

        return pickBy('isAfter', args);
    };

    // creating with utc
    moment.utc = function (input, format, locale, strict) {
        var c;

        if (typeof(locale) === 'boolean') {
            strict = locale;
            locale = undefined;
        }
        // object construction must be done this way.
        // https://github.com/moment/moment/issues/1423
        c = {};
        c._isAMomentObject = true;
        c._useUTC = true;
        c._isUTC = true;
        c._l = locale;
        c._i = input;
        c._f = format;
        c._strict = strict;
        c._pf = defaultParsingFlags();

        return makeMoment(c).utc();
    };

    // creating with unix timestamp (in seconds)
    moment.unix = function (input) {
        return moment(input * 1000);
    };

    // duration
    moment.duration = function (input, key) {
        var duration = input,
            // matching against regexp is expensive, do it on demand
            match = null,
            sign,
            ret,
            parseIso,
            diffRes;

        if (moment.isDuration(input)) {
            duration = {
                ms: input._milliseconds,
                d: input._days,
                M: input._months
            };
        } else if (typeof input === 'number') {
            duration = {};
            if (key) {
                duration[key] = input;
            } else {
                duration.milliseconds = input;
            }
        } else if (!!(match = aspNetTimeSpanJsonRegex.exec(input))) {
            sign = (match[1] === '-') ? -1 : 1;
            duration = {
                y: 0,
                d: toInt(match[DATE]) * sign,
                h: toInt(match[HOUR]) * sign,
                m: toInt(match[MINUTE]) * sign,
                s: toInt(match[SECOND]) * sign,
                ms: toInt(match[MILLISECOND]) * sign
            };
        } else if (!!(match = isoDurationRegex.exec(input))) {
            sign = (match[1] === '-') ? -1 : 1;
            parseIso = function (inp) {
                // We'd normally use ~~inp for this, but unfortunately it also
                // converts floats to ints.
                // inp may be undefined, so careful calling replace on it.
                var res = inp && parseFloat(inp.replace(',', '.'));
                // apply sign while we're at it
                return (isNaN(res) ? 0 : res) * sign;
            };
            duration = {
                y: parseIso(match[2]),
                M: parseIso(match[3]),
                d: parseIso(match[4]),
                h: parseIso(match[5]),
                m: parseIso(match[6]),
                s: parseIso(match[7]),
                w: parseIso(match[8])
            };
        } else if (typeof duration === 'object' &&
                ('from' in duration || 'to' in duration)) {
            diffRes = momentsDifference(moment(duration.from), moment(duration.to));

            duration = {};
            duration.ms = diffRes.milliseconds;
            duration.M = diffRes.months;
        }

        ret = new Duration(duration);

        if (moment.isDuration(input) && hasOwnProp(input, '_locale')) {
            ret._locale = input._locale;
        }

        return ret;
    };

    // version number
    moment.version = VERSION;

    // default format
    moment.defaultFormat = isoFormat;

    // constant that refers to the ISO standard
    moment.ISO_8601 = function () {};

    // Plugins that add properties should also add the key here (null value),
    // so we can properly clone ourselves.
    moment.momentProperties = momentProperties;

    // This function will be called whenever a moment is mutated.
    // It is intended to keep the offset in sync with the timezone.
    moment.updateOffset = function () {};

    // This function allows you to set a threshold for relative time strings
    moment.relativeTimeThreshold = function (threshold, limit) {
        if (relativeTimeThresholds[threshold] === undefined) {
            return false;
        }
        if (limit === undefined) {
            return relativeTimeThresholds[threshold];
        }
        relativeTimeThresholds[threshold] = limit;
        return true;
    };

    moment.lang = deprecate(
        'moment.lang is deprecated. Use moment.locale instead.',
        function (key, value) {
            return moment.locale(key, value);
        }
    );

    // This function will load locale and then set the global locale.  If
    // no arguments are passed in, it will simply return the current global
    // locale key.
    moment.locale = function (key, values) {
        var data;
        if (key) {
            if (typeof(values) !== 'undefined') {
                data = moment.defineLocale(key, values);
            }
            else {
                data = moment.localeData(key);
            }

            if (data) {
                moment.duration._locale = moment._locale = data;
            }
        }

        return moment._locale._abbr;
    };

    moment.defineLocale = function (name, values) {
        if (values !== null) {
            values.abbr = name;
            if (!locales[name]) {
                locales[name] = new Locale();
            }
            locales[name].set(values);

            // backwards compat for now: also set the locale
            moment.locale(name);

            return locales[name];
        } else {
            // useful for testing
            delete locales[name];
            return null;
        }
    };

    moment.langData = deprecate(
        'moment.langData is deprecated. Use moment.localeData instead.',
        function (key) {
            return moment.localeData(key);
        }
    );

    // returns locale data
    moment.localeData = function (key) {
        var locale;

        if (key && key._locale && key._locale._abbr) {
            key = key._locale._abbr;
        }

        if (!key) {
            return moment._locale;
        }

        if (!isArray(key)) {
            //short-circuit everything else
            locale = loadLocale(key);
            if (locale) {
                return locale;
            }
            key = [key];
        }

        return chooseLocale(key);
    };

    // compare moment object
    moment.isMoment = function (obj) {
        return obj instanceof Moment ||
            (obj != null && hasOwnProp(obj, '_isAMomentObject'));
    };

    // for typechecking Duration objects
    moment.isDuration = function (obj) {
        return obj instanceof Duration;
    };

    for (i = lists.length - 1; i >= 0; --i) {
        makeList(lists[i]);
    }

    moment.normalizeUnits = function (units) {
        return normalizeUnits(units);
    };

    moment.invalid = function (flags) {
        var m = moment.utc(NaN);
        if (flags != null) {
            extend(m._pf, flags);
        }
        else {
            m._pf.userInvalidated = true;
        }

        return m;
    };

    moment.parseZone = function () {
        return moment.apply(null, arguments).parseZone();
    };

    moment.parseTwoDigitYear = function (input) {
        return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
    };

    /************************************
        Moment Prototype
    ************************************/


    extend(moment.fn = Moment.prototype, {

        clone : function () {
            return moment(this);
        },

        valueOf : function () {
            return +this._d + ((this._offset || 0) * 60000);
        },

        unix : function () {
            return Math.floor(+this / 1000);
        },

        toString : function () {
            return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
        },

        toDate : function () {
            return this._offset ? new Date(+this) : this._d;
        },

        toISOString : function () {
            var m = moment(this).utc();
            if (0 < m.year() && m.year() <= 9999) {
                return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
            } else {
                return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
            }
        },

        toArray : function () {
            var m = this;
            return [
                m.year(),
                m.month(),
                m.date(),
                m.hours(),
                m.minutes(),
                m.seconds(),
                m.milliseconds()
            ];
        },

        isValid : function () {
            return isValid(this);
        },

        isDSTShifted : function () {
            if (this._a) {
                return this.isValid() && compareArrays(this._a, (this._isUTC ? moment.utc(this._a) : moment(this._a)).toArray()) > 0;
            }

            return false;
        },

        parsingFlags : function () {
            return extend({}, this._pf);
        },

        invalidAt: function () {
            return this._pf.overflow;
        },

        utc : function (keepLocalTime) {
            return this.zone(0, keepLocalTime);
        },

        local : function (keepLocalTime) {
            if (this._isUTC) {
                this.zone(0, keepLocalTime);
                this._isUTC = false;

                if (keepLocalTime) {
                    this.add(this._dateTzOffset(), 'm');
                }
            }
            return this;
        },

        format : function (inputString) {
            var output = formatMoment(this, inputString || moment.defaultFormat);
            return this.localeData().postformat(output);
        },

        add : createAdder(1, 'add'),

        subtract : createAdder(-1, 'subtract'),

        diff : function (input, units, asFloat) {
            var that = makeAs(input, this),
                zoneDiff = (this.zone() - that.zone()) * 6e4,
                diff, output, daysAdjust;

            units = normalizeUnits(units);

            if (units === 'year' || units === 'month') {
                // average number of days in the months in the given dates
                diff = (this.daysInMonth() + that.daysInMonth()) * 432e5; // 24 * 60 * 60 * 1000 / 2
                // difference in months
                output = ((this.year() - that.year()) * 12) + (this.month() - that.month());
                // adjust by taking difference in days, average number of days
                // and dst in the given months.
                daysAdjust = (this - moment(this).startOf('month')) -
                    (that - moment(that).startOf('month'));
                // same as above but with zones, to negate all dst
                daysAdjust -= ((this.zone() - moment(this).startOf('month').zone()) -
                        (that.zone() - moment(that).startOf('month').zone())) * 6e4;
                output += daysAdjust / diff;
                if (units === 'year') {
                    output = output / 12;
                }
            } else {
                diff = (this - that);
                output = units === 'second' ? diff / 1e3 : // 1000
                    units === 'minute' ? diff / 6e4 : // 1000 * 60
                    units === 'hour' ? diff / 36e5 : // 1000 * 60 * 60
                    units === 'day' ? (diff - zoneDiff) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
                    units === 'week' ? (diff - zoneDiff) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
                    diff;
            }
            return asFloat ? output : absRound(output);
        },

        from : function (time, withoutSuffix) {
            return moment.duration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
        },

        fromNow : function (withoutSuffix) {
            return this.from(moment(), withoutSuffix);
        },

        calendar : function (time) {
            // We want to compare the start of today, vs this.
            // Getting start-of-today depends on whether we're zone'd or not.
            var now = time || moment(),
                sod = makeAs(now, this).startOf('day'),
                diff = this.diff(sod, 'days', true),
                format = diff < -6 ? 'sameElse' :
                    diff < -1 ? 'lastWeek' :
                    diff < 0 ? 'lastDay' :
                    diff < 1 ? 'sameDay' :
                    diff < 2 ? 'nextDay' :
                    diff < 7 ? 'nextWeek' : 'sameElse';
            return this.format(this.localeData().calendar(format, this));
        },

        isLeapYear : function () {
            return isLeapYear(this.year());
        },

        isDST : function () {
            return (this.zone() < this.clone().month(0).zone() ||
                this.zone() < this.clone().month(5).zone());
        },

        day : function (input) {
            var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
            if (input != null) {
                input = parseWeekday(input, this.localeData());
                return this.add(input - day, 'd');
            } else {
                return day;
            }
        },

        month : makeAccessor('Month', true),

        startOf : function (units) {
            units = normalizeUnits(units);
            // the following switch intentionally omits break keywords
            // to utilize falling through the cases.
            switch (units) {
            case 'year':
                this.month(0);
                /* falls through */
            case 'quarter':
            case 'month':
                this.date(1);
                /* falls through */
            case 'week':
            case 'isoWeek':
            case 'day':
                this.hours(0);
                /* falls through */
            case 'hour':
                this.minutes(0);
                /* falls through */
            case 'minute':
                this.seconds(0);
                /* falls through */
            case 'second':
                this.milliseconds(0);
                /* falls through */
            }

            // weeks are a special case
            if (units === 'week') {
                this.weekday(0);
            } else if (units === 'isoWeek') {
                this.isoWeekday(1);
            }

            // quarters are also special
            if (units === 'quarter') {
                this.month(Math.floor(this.month() / 3) * 3);
            }

            return this;
        },

        endOf: function (units) {
            units = normalizeUnits(units);
            return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
        },

        isAfter: function (input, units) {
            units = normalizeUnits(typeof units !== 'undefined' ? units : 'millisecond');
            if (units === 'millisecond') {
                input = moment.isMoment(input) ? input : moment(input);
                return +this > +input;
            } else {
                return +this.clone().startOf(units) > +moment(input).startOf(units);
            }
        },

        isBefore: function (input, units) {
            units = normalizeUnits(typeof units !== 'undefined' ? units : 'millisecond');
            if (units === 'millisecond') {
                input = moment.isMoment(input) ? input : moment(input);
                return +this < +input;
            } else {
                return +this.clone().startOf(units) < +moment(input).startOf(units);
            }
        },

        isSame: function (input, units) {
            units = normalizeUnits(units || 'millisecond');
            if (units === 'millisecond') {
                input = moment.isMoment(input) ? input : moment(input);
                return +this === +input;
            } else {
                return +this.clone().startOf(units) === +makeAs(input, this).startOf(units);
            }
        },

        min: deprecate(
                 'moment().min is deprecated, use moment.min instead. https://github.com/moment/moment/issues/1548',
                 function (other) {
                     other = moment.apply(null, arguments);
                     return other < this ? this : other;
                 }
         ),

        max: deprecate(
                'moment().max is deprecated, use moment.max instead. https://github.com/moment/moment/issues/1548',
                function (other) {
                    other = moment.apply(null, arguments);
                    return other > this ? this : other;
                }
        ),

        // keepLocalTime = true means only change the timezone, without
        // affecting the local hour. So 5:31:26 +0300 --[zone(2, true)]-->
        // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist int zone
        // +0200, so we adjust the time as needed, to be valid.
        //
        // Keeping the time actually adds/subtracts (one hour)
        // from the actual represented time. That is why we call updateOffset
        // a second time. In case it wants us to change the offset again
        // _changeInProgress == true case, then we have to adjust, because
        // there is no such time in the given timezone.
        zone : function (input, keepLocalTime) {
            var offset = this._offset || 0,
                localAdjust;
            if (input != null) {
                if (typeof input === 'string') {
                    input = timezoneMinutesFromString(input);
                }
                if (Math.abs(input) < 16) {
                    input = input * 60;
                }
                if (!this._isUTC && keepLocalTime) {
                    localAdjust = this._dateTzOffset();
                }
                this._offset = input;
                this._isUTC = true;
                if (localAdjust != null) {
                    this.subtract(localAdjust, 'm');
                }
                if (offset !== input) {
                    if (!keepLocalTime || this._changeInProgress) {
                        addOrSubtractDurationFromMoment(this,
                                moment.duration(offset - input, 'm'), 1, false);
                    } else if (!this._changeInProgress) {
                        this._changeInProgress = true;
                        moment.updateOffset(this, true);
                        this._changeInProgress = null;
                    }
                }
            } else {
                return this._isUTC ? offset : this._dateTzOffset();
            }
            return this;
        },

        zoneAbbr : function () {
            return this._isUTC ? 'UTC' : '';
        },

        zoneName : function () {
            return this._isUTC ? 'Coordinated Universal Time' : '';
        },

        parseZone : function () {
            if (this._tzm) {
                this.zone(this._tzm);
            } else if (typeof this._i === 'string') {
                this.zone(this._i);
            }
            return this;
        },

        hasAlignedHourOffset : function (input) {
            if (!input) {
                input = 0;
            }
            else {
                input = moment(input).zone();
            }

            return (this.zone() - input) % 60 === 0;
        },

        daysInMonth : function () {
            return daysInMonth(this.year(), this.month());
        },

        dayOfYear : function (input) {
            var dayOfYear = round((moment(this).startOf('day') - moment(this).startOf('year')) / 864e5) + 1;
            return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
        },

        quarter : function (input) {
            return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
        },

        weekYear : function (input) {
            var year = weekOfYear(this, this.localeData()._week.dow, this.localeData()._week.doy).year;
            return input == null ? year : this.add((input - year), 'y');
        },

        isoWeekYear : function (input) {
            var year = weekOfYear(this, 1, 4).year;
            return input == null ? year : this.add((input - year), 'y');
        },

        week : function (input) {
            var week = this.localeData().week(this);
            return input == null ? week : this.add((input - week) * 7, 'd');
        },

        isoWeek : function (input) {
            var week = weekOfYear(this, 1, 4).week;
            return input == null ? week : this.add((input - week) * 7, 'd');
        },

        weekday : function (input) {
            var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
            return input == null ? weekday : this.add(input - weekday, 'd');
        },

        isoWeekday : function (input) {
            // behaves the same as moment#day except
            // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
            // as a setter, sunday should belong to the previous week.
            return input == null ? this.day() || 7 : this.day(this.day() % 7 ? input : input - 7);
        },

        isoWeeksInYear : function () {
            return weeksInYear(this.year(), 1, 4);
        },

        weeksInYear : function () {
            var weekInfo = this.localeData()._week;
            return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
        },

        get : function (units) {
            units = normalizeUnits(units);
            return this[units]();
        },

        set : function (units, value) {
            units = normalizeUnits(units);
            if (typeof this[units] === 'function') {
                this[units](value);
            }
            return this;
        },

        // If passed a locale key, it will set the locale for this
        // instance.  Otherwise, it will return the locale configuration
        // variables for this instance.
        locale : function (key) {
            var newLocaleData;

            if (key === undefined) {
                return this._locale._abbr;
            } else {
                newLocaleData = moment.localeData(key);
                if (newLocaleData != null) {
                    this._locale = newLocaleData;
                }
                return this;
            }
        },

        lang : deprecate(
            'moment().lang() is deprecated. Use moment().localeData() instead.',
            function (key) {
                if (key === undefined) {
                    return this.localeData();
                } else {
                    return this.locale(key);
                }
            }
        ),

        localeData : function () {
            return this._locale;
        },

        _dateTzOffset : function () {
            // On Firefox.24 Date#getTimezoneOffset returns a floating point.
            // https://github.com/moment/moment/pull/1871
            return Math.round(this._d.getTimezoneOffset() / 15) * 15;
        }
    });

    function rawMonthSetter(mom, value) {
        var dayOfMonth;

        // TODO: Move this out of here!
        if (typeof value === 'string') {
            value = mom.localeData().monthsParse(value);
            // TODO: Another silent failure?
            if (typeof value !== 'number') {
                return mom;
            }
        }

        dayOfMonth = Math.min(mom.date(),
                daysInMonth(mom.year(), value));
        mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
        return mom;
    }

    function rawGetter(mom, unit) {
        return mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]();
    }

    function rawSetter(mom, unit, value) {
        if (unit === 'Month') {
            return rawMonthSetter(mom, value);
        } else {
            return mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
        }
    }

    function makeAccessor(unit, keepTime) {
        return function (value) {
            if (value != null) {
                rawSetter(this, unit, value);
                moment.updateOffset(this, keepTime);
                return this;
            } else {
                return rawGetter(this, unit);
            }
        };
    }

    moment.fn.millisecond = moment.fn.milliseconds = makeAccessor('Milliseconds', false);
    moment.fn.second = moment.fn.seconds = makeAccessor('Seconds', false);
    moment.fn.minute = moment.fn.minutes = makeAccessor('Minutes', false);
    // Setting the hour should keep the time, because the user explicitly
    // specified which hour he wants. So trying to maintain the same hour (in
    // a new timezone) makes sense. Adding/subtracting hours does not follow
    // this rule.
    moment.fn.hour = moment.fn.hours = makeAccessor('Hours', true);
    // moment.fn.month is defined separately
    moment.fn.date = makeAccessor('Date', true);
    moment.fn.dates = deprecate('dates accessor is deprecated. Use date instead.', makeAccessor('Date', true));
    moment.fn.year = makeAccessor('FullYear', true);
    moment.fn.years = deprecate('years accessor is deprecated. Use year instead.', makeAccessor('FullYear', true));

    // add plural methods
    moment.fn.days = moment.fn.day;
    moment.fn.months = moment.fn.month;
    moment.fn.weeks = moment.fn.week;
    moment.fn.isoWeeks = moment.fn.isoWeek;
    moment.fn.quarters = moment.fn.quarter;

    // add aliased format methods
    moment.fn.toJSON = moment.fn.toISOString;

    /************************************
        Duration Prototype
    ************************************/


    function daysToYears (days) {
        // 400 years have 146097 days (taking into account leap year rules)
        return days * 400 / 146097;
    }

    function yearsToDays (years) {
        // years * 365 + absRound(years / 4) -
        //     absRound(years / 100) + absRound(years / 400);
        return years * 146097 / 400;
    }

    extend(moment.duration.fn = Duration.prototype, {

        _bubble : function () {
            var milliseconds = this._milliseconds,
                days = this._days,
                months = this._months,
                data = this._data,
                seconds, minutes, hours, years = 0;

            // The following code bubbles up values, see the tests for
            // examples of what that means.
            data.milliseconds = milliseconds % 1000;

            seconds = absRound(milliseconds / 1000);
            data.seconds = seconds % 60;

            minutes = absRound(seconds / 60);
            data.minutes = minutes % 60;

            hours = absRound(minutes / 60);
            data.hours = hours % 24;

            days += absRound(hours / 24);

            // Accurately convert days to years, assume start from year 0.
            years = absRound(daysToYears(days));
            days -= absRound(yearsToDays(years));

            // 30 days to a month
            // TODO (iskren): Use anchor date (like 1st Jan) to compute this.
            months += absRound(days / 30);
            days %= 30;

            // 12 months -> 1 year
            years += absRound(months / 12);
            months %= 12;

            data.days = days;
            data.months = months;
            data.years = years;
        },

        abs : function () {
            this._milliseconds = Math.abs(this._milliseconds);
            this._days = Math.abs(this._days);
            this._months = Math.abs(this._months);

            this._data.milliseconds = Math.abs(this._data.milliseconds);
            this._data.seconds = Math.abs(this._data.seconds);
            this._data.minutes = Math.abs(this._data.minutes);
            this._data.hours = Math.abs(this._data.hours);
            this._data.months = Math.abs(this._data.months);
            this._data.years = Math.abs(this._data.years);

            return this;
        },

        weeks : function () {
            return absRound(this.days() / 7);
        },

        valueOf : function () {
            return this._milliseconds +
              this._days * 864e5 +
              (this._months % 12) * 2592e6 +
              toInt(this._months / 12) * 31536e6;
        },

        humanize : function (withSuffix) {
            var output = relativeTime(this, !withSuffix, this.localeData());

            if (withSuffix) {
                output = this.localeData().pastFuture(+this, output);
            }

            return this.localeData().postformat(output);
        },

        add : function (input, val) {
            // supports only 2.0-style add(1, 's') or add(moment)
            var dur = moment.duration(input, val);

            this._milliseconds += dur._milliseconds;
            this._days += dur._days;
            this._months += dur._months;

            this._bubble();

            return this;
        },

        subtract : function (input, val) {
            var dur = moment.duration(input, val);

            this._milliseconds -= dur._milliseconds;
            this._days -= dur._days;
            this._months -= dur._months;

            this._bubble();

            return this;
        },

        get : function (units) {
            units = normalizeUnits(units);
            return this[units.toLowerCase() + 's']();
        },

        as : function (units) {
            var days, months;
            units = normalizeUnits(units);

            if (units === 'month' || units === 'year') {
                days = this._days + this._milliseconds / 864e5;
                months = this._months + daysToYears(days) * 12;
                return units === 'month' ? months : months / 12;
            } else {
                // handle milliseconds separately because of floating point math errors (issue #1867)
                days = this._days + yearsToDays(this._months / 12);
                switch (units) {
                    case 'week': return days / 7 + this._milliseconds / 6048e5;
                    case 'day': return days + this._milliseconds / 864e5;
                    case 'hour': return days * 24 + this._milliseconds / 36e5;
                    case 'minute': return days * 24 * 60 + this._milliseconds / 6e4;
                    case 'second': return days * 24 * 60 * 60 + this._milliseconds / 1000;
                    // Math.floor prevents floating point math errors here
                    case 'millisecond': return Math.floor(days * 24 * 60 * 60 * 1000) + this._milliseconds;
                    default: throw new Error('Unknown unit ' + units);
                }
            }
        },

        lang : moment.fn.lang,
        locale : moment.fn.locale,

        toIsoString : deprecate(
            'toIsoString() is deprecated. Please use toISOString() instead ' +
            '(notice the capitals)',
            function () {
                return this.toISOString();
            }
        ),

        toISOString : function () {
            // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
            var years = Math.abs(this.years()),
                months = Math.abs(this.months()),
                days = Math.abs(this.days()),
                hours = Math.abs(this.hours()),
                minutes = Math.abs(this.minutes()),
                seconds = Math.abs(this.seconds() + this.milliseconds() / 1000);

            if (!this.asSeconds()) {
                // this is the same as C#'s (Noda) and python (isodate)...
                // but not other JS (goog.date)
                return 'P0D';
            }

            return (this.asSeconds() < 0 ? '-' : '') +
                'P' +
                (years ? years + 'Y' : '') +
                (months ? months + 'M' : '') +
                (days ? days + 'D' : '') +
                ((hours || minutes || seconds) ? 'T' : '') +
                (hours ? hours + 'H' : '') +
                (minutes ? minutes + 'M' : '') +
                (seconds ? seconds + 'S' : '');
        },

        localeData : function () {
            return this._locale;
        }
    });

    moment.duration.fn.toString = moment.duration.fn.toISOString;

    function makeDurationGetter(name) {
        moment.duration.fn[name] = function () {
            return this._data[name];
        };
    }

    for (i in unitMillisecondFactors) {
        if (hasOwnProp(unitMillisecondFactors, i)) {
            makeDurationGetter(i.toLowerCase());
        }
    }

    moment.duration.fn.asMilliseconds = function () {
        return this.as('ms');
    };
    moment.duration.fn.asSeconds = function () {
        return this.as('s');
    };
    moment.duration.fn.asMinutes = function () {
        return this.as('m');
    };
    moment.duration.fn.asHours = function () {
        return this.as('h');
    };
    moment.duration.fn.asDays = function () {
        return this.as('d');
    };
    moment.duration.fn.asWeeks = function () {
        return this.as('weeks');
    };
    moment.duration.fn.asMonths = function () {
        return this.as('M');
    };
    moment.duration.fn.asYears = function () {
        return this.as('y');
    };

    /************************************
        Default Locale
    ************************************/


    // Set default locale, other locale will inherit from English.
    moment.locale('en', {
        ordinal : function (number) {
            var b = number % 10,
                output = (toInt(number % 100 / 10) === 1) ? 'th' :
                (b === 1) ? 'st' :
                (b === 2) ? 'nd' :
                (b === 3) ? 'rd' : 'th';
            return number + output;
        }
    });

    /* EMBED_LOCALES */

    /************************************
        Exposing Moment
    ************************************/

    function makeGlobal(shouldDeprecate) {
        /*global ender:false */
        if (typeof ender !== 'undefined') {
            return;
        }
        oldGlobalMoment = globalScope.moment;
        if (shouldDeprecate) {
            globalScope.moment = deprecate(
                    'Accessing Moment through the global scope is ' +
                    'deprecated, and will be removed in an upcoming ' +
                    'release.',
                    moment);
        } else {
            globalScope.moment = moment;
        }
    }

    // CommonJS module is defined
    if (hasModule) {
        module.exports = moment;
    } else if (typeof define === 'function' && define.amd) {
        define('moment', function (require, exports, module) {
            if (module.config && module.config() && module.config().noGlobal === true) {
                // release the global variable
                globalScope.moment = oldGlobalMoment;
            }

            return moment;
        });
        makeGlobal(true);
    } else {
        makeGlobal();
    }
}).call(this);
/*
*  AngularJs Fullcalendar Wrapper for the JQuery FullCalendar
*  API @ http://arshaw.com/fullcalendar/
*
*  Angular Calendar Directive that takes in the [eventSources] nested array object as the ng-model and watches it deeply changes.
*       Can also take in multiple event urls as a source object(s) and feed the events per view.
*       The calendar will watch any eventSource array and update itself when a change is made.
*
*/

angular.module('ui.calendar', [])
  .constant('uiCalendarConfig', {calendars: {}})
  .controller('uiCalendarCtrl', ['$scope', 
                                 '$timeout', 
                                 '$locale', function(
                                  $scope, 
                                  $timeout, 
                                  $locale){

      var sourceSerialId = 1,
          eventSerialId = 1,
          sources = $scope.eventSources,
          extraEventSignature = $scope.calendarWatchEvent ? $scope.calendarWatchEvent : angular.noop,

          wrapFunctionWithScopeApply = function(functionToWrap){
              var wrapper;

              if (functionToWrap){
                  wrapper = function(){
                      // This happens outside of angular context so we need to wrap it in a timeout which has an implied apply.
                      // In this way the function will be safely executed on the next digest.

                      var args = arguments;
                      var _this = this;
                      $timeout(function(){
                        functionToWrap.apply(_this, args);
                      });
                  };
              }

              return wrapper;
          };

      this.eventsFingerprint = function(e) {
        if (!e._id) {
          e._id = eventSerialId++;
        }
        // This extracts all the information we need from the event. http://jsperf.com/angular-calendar-events-fingerprint/3
        return "" + e._id + (e.id || '') + (e.title || '') + (e.url || '') + (+e.start || '') + (+e.end || '') +
          (e.allDay || '') + (e.className || '') + extraEventSignature(e) || '';
      };

      this.sourcesFingerprint = function(source) {
          return source.__id || (source.__id = sourceSerialId++);
      };

      this.allEvents = function() {
        // return sources.flatten(); but we don't have flatten
        var arraySources = [];
        for (var i = 0, srcLen = sources.length; i < srcLen; i++) {
          var source = sources[i];
          if (angular.isArray(source)) {
            // event source as array
            arraySources.push(source);
          } else if(angular.isObject(source) && angular.isArray(source.events)){
            // event source as object, ie extended form
            var extEvent = {};
            for(var key in source){
              if(key !== '_uiCalId' && key !== 'events'){
                 extEvent[key] = source[key];
              }
            }
            for(var eI = 0;eI < source.events.length;eI++){
              angular.extend(source.events[eI],extEvent);
            }
            arraySources.push(source.events);
          }
        }

        return Array.prototype.concat.apply([], arraySources);
      };

      // Track changes in array by assigning id tokens to each element and watching the scope for changes in those tokens
      // arguments:
      //  arraySource array of function that returns array of objects to watch
      //  tokenFn function(object) that returns the token for a given object
      this.changeWatcher = function(arraySource, tokenFn) {
        var self;
        var getTokens = function() {
          var array = angular.isFunction(arraySource) ? arraySource() : arraySource;
          var result = [], token, el;
          for (var i = 0, n = array.length; i < n; i++) {
            el = array[i];
            token = tokenFn(el);
            map[token] = el;
            result.push(token);
          }
          return result;
        };
        // returns elements in that are in a but not in b
        // subtractAsSets([4, 5, 6], [4, 5, 7]) => [6]
        var subtractAsSets = function(a, b) {
          var result = [], inB = {}, i, n;
          for (i = 0, n = b.length; i < n; i++) {
            inB[b[i]] = true;
          }
          for (i = 0, n = a.length; i < n; i++) {
            if (!inB[a[i]]) {
              result.push(a[i]);
            }
          }
          return result;
        };

        // Map objects to tokens and vice-versa
        var map = {};

        var applyChanges = function(newTokens, oldTokens) {
          var i, n, el, token;
          var replacedTokens = {};
          var removedTokens = subtractAsSets(oldTokens, newTokens);
          for (i = 0, n = removedTokens.length; i < n; i++) {
            var removedToken = removedTokens[i];
            el = map[removedToken];
            delete map[removedToken];
            var newToken = tokenFn(el);
            // if the element wasn't removed but simply got a new token, its old token will be different from the current one
            if (newToken === removedToken) {
              self.onRemoved(el);
            } else {
              replacedTokens[newToken] = removedToken;
              self.onChanged(el);
            }
          }

          var addedTokens = subtractAsSets(newTokens, oldTokens);
          for (i = 0, n = addedTokens.length; i < n; i++) {
            token = addedTokens[i];
            el = map[token];
            if (!replacedTokens[token]) {
              self.onAdded(el);
            }
          }
        };
        return self = {
          subscribe: function(scope, onChanged) {
            scope.$watch(getTokens, function(newTokens, oldTokens) {
              if (!onChanged || onChanged(newTokens, oldTokens) !== false) {
                applyChanges(newTokens, oldTokens);
              }
            }, true);
          },
          onAdded: angular.noop,
          onChanged: angular.noop,
          onRemoved: angular.noop
        };
      };

      this.getFullCalendarConfig = function(calendarSettings, uiCalendarConfig){
          var config = {};

          angular.extend(config, uiCalendarConfig);
          angular.extend(config, calendarSettings);
         
          angular.forEach(config, function(value,key){
            if (typeof value === 'function'){
              config[key] = wrapFunctionWithScopeApply(config[key]);
            }
          });

          return config;
      };

    this.getLocaleConfig = function(fullCalendarConfig) {
      if (!fullCalendarConfig.lang || fullCalendarConfig.useNgLocale) {
        // Configure to use locale names by default
        var tValues = function(data) {
          // convert {0: "Jan", 1: "Feb", ...} to ["Jan", "Feb", ...]
          var r, k;
          r = [];
          for (k in data) {
            r[k] = data[k];
          }
          return r;
        };
        var dtf = $locale.DATETIME_FORMATS;
        return {
          monthNames: tValues(dtf.MONTH),
          monthNamesShort: tValues(dtf.SHORTMONTH),
          dayNames: tValues(dtf.DAY),
          dayNamesShort: tValues(dtf.SHORTDAY)
        };
      }
      return {};
    };
  }])
  .directive('uiCalendar', ['uiCalendarConfig','$timeout', function(uiCalendarConfig,$timeout) {
    return {
      restrict: 'A',
      scope: {eventSources:'=ngModel',calendarWatchEvent: '&'},
      controller: 'uiCalendarCtrl',
      link: function(scope, elm, attrs, controller) {

        var sources = scope.eventSources,
            sourcesChanged = false,
            calendar,
            eventSourcesWatcher = controller.changeWatcher(sources, controller.sourcesFingerprint),
            eventsWatcher = controller.changeWatcher(controller.allEvents, controller.eventsFingerprint),
            options = null;

        function getOptions(){
          var calendarSettings = attrs.uiCalendar ? scope.$parent.$eval(attrs.uiCalendar) : {},
              fullCalendarConfig;

          fullCalendarConfig = controller.getFullCalendarConfig(calendarSettings, uiCalendarConfig);

          var localeFullCalendarConfig = controller.getLocaleConfig(fullCalendarConfig);
          angular.extend(localeFullCalendarConfig, fullCalendarConfig);
          options = { eventSources: sources };
          angular.extend(options, localeFullCalendarConfig);
          //remove calendars from options
          options.calendars = null;

          var options2 = {};
          for(var o in options){
            if(o !== 'eventSources'){
              options2[o] = options[o];
            }
          }
          return JSON.stringify(options2);
        }

        scope.destroy = function(){
          if(calendar && calendar.fullCalendar){
            calendar.fullCalendar('destroy');
          }
          if(attrs.calendar) {
            calendar = uiCalendarConfig.calendars[attrs.calendar] = $(elm).html('');
          } else {
            calendar = $(elm).html('');
          }
        };

        scope.init = function(){
          calendar.fullCalendar(options);
        };

        eventSourcesWatcher.onAdded = function(source) {
            calendar.fullCalendar('addEventSource', source);
            sourcesChanged = true;
        };

        eventSourcesWatcher.onRemoved = function(source) {
          calendar.fullCalendar('removeEventSource', source);
          sourcesChanged = true;
        };

        eventsWatcher.onAdded = function(event) {
          calendar.fullCalendar('renderEvent', event);
        };

        eventsWatcher.onRemoved = function(event) {
          calendar.fullCalendar('removeEvents', function(e) { 
            return e._id === event._id;
          });
        };

        eventsWatcher.onChanged = function(event) {
          event._start = $.fullCalendar.moment(event.start);
          event._end = $.fullCalendar.moment(event.end);
          calendar.fullCalendar('updateEvent', event);
        };

        eventSourcesWatcher.subscribe(scope);
        eventsWatcher.subscribe(scope, function(newTokens, oldTokens) {
          if (sourcesChanged === true) {
            sourcesChanged = false;
            // prevent incremental updates in this case
            return false;
          }
        });

        scope.$watch(getOptions, function(newO,oldO){
            scope.destroy();
           $timeout(function(){scope.init()});
        });
      }
    };
}]);
/**
 * @license angular-bootstrap-datetimepicker  version: 0.4.0
 * Copyright 2015 Knight Rider Consulting, Inc. http://www.knightrider.com
 * License: MIT
 */
.datetimepicker {
  border-radius: 4px;
  direction: ltr;
  display: block;
  margin-top: 1px;
  -webkit-user-select: none;
     -moz-user-select: none;
      -ms-user-select: none;
          user-select: none;
  width: 320px;
}
.datetimepicker > div {
  display: none;
}
.datetimepicker .hour,
.datetimepicker .minute {
  height: 34px;
  line-height: 34px;
  margin: 0;
  width: 25%;
}

.datetimepicker .table {
  margin: 0;
}
.datetimepicker .table td,
.datetimepicker .table th {
  border: 0;
  border-radius: 4px;
  height: 20px;
  text-align: center;
}
.datetimepicker .minute:hover,
.datetimepicker .hour:hover,
.datetimepicker .day:hover,
.datetimepicker .switch:hover,
.datetimepicker .left:hover,
.datetimepicker .right:hover {
  background: #eeeeee;
  cursor: pointer;
}
.datetimepicker .disabled,
.datetimepicker .disabled:hover {
  background: none;
  color: #ebebeb;
  cursor: default;
}
.datetimepicker .active,
.datetimepicker .active:hover,
.datetimepicker .active.disabled,
.datetimepicker .active.disabled:hover {
  background-color: #0044cc;
  background-image: linear-gradient(to bottom, #0088cc, #0044cc);
  background-repeat: repeat-x;
  border-color: #0044cc #0044cc #002a80;
  color: #ffffff;
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#08c', endColorstr='#04c', GradientType=0);
  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
}
.datetimepicker .active:hover,
.datetimepicker .active:hover:hover,
.datetimepicker .active.disabled:hover,
.datetimepicker .active.disabled:hover:hover,
.datetimepicker .active:active,
.datetimepicker .active:hover:active,
.datetimepicker .active.disabled:active,
.datetimepicker .active.disabled:hover:active,
.datetimepicker .active.active,
.datetimepicker .active:hover.active,
.datetimepicker .active.disabled.active,
.datetimepicker .active.disabled:hover.active,
.datetimepicker .active.disabled,
.datetimepicker .active:hover.disabled,
.datetimepicker .active.disabled.disabled,
.datetimepicker .active.disabled:hover.disabled,
.datetimepicker td.active[disabled],
.datetimepicker td.active:hover[disabled],
.datetimepicker td.active.disabled[disabled],
.datetimepicker td.active.disabled:hover[disabled],
.datetimepicker span.active[disabled],
.datetimepicker span.active:hover[disabled],
.datetimepicker span.active.disabled[disabled],
.datetimepicker span.active.disabled:hover[disabled] {
  background-color: #0044cc;
}
.datetimepicker span {
  border-radius: 4px;
  cursor: pointer;
  display: block;
  float: left;
  height: 54px;
  line-height: 54px;
  margin: 1%;
  width: 23%;
}
.datetimepicker span:hover {
  background: #eeeeee;
}
.datetimepicker .past,
.datetimepicker .future {
  color: #999999;
}

/*# sourceMappingURL=datetimepicker.css.map */
/*globals define, jQuery, module, require */
/*jslint vars:true */

/**
 * @license angular-bootstrap-datetimepicker  version: 0.4.0
 * Copyright 2015 Knight Rider Consulting, Inc. http://www.knightrider.com
 * License: MIT
 */


/**
 *
 *    @author        Dale "Ducky" Lotts
 *    @since        2013-Jul-8
 */

(function (factory) {
  'use strict';
  /* istanbul ignore if */
  if (typeof define === 'function' && /* istanbul ignore next */ define.amd) {
    define(['angular', 'moment'], factory);
    // AMD
    /* istanbul ignore next */
  } else if (typeof exports === 'object') {
    module.exports = factory(require('angular'), require('moment')); // CommonJS
  } else {
    factory(window.angular, window.moment); // Browser global
  }
}(function (angular, moment) {
  'use strict';
  angular.module('ui.bootstrap.datetimepicker', [])
    .constant('dateTimePickerConfig', {
      configureOn: null,
      dropdownSelector: null,
      minuteStep: 5,
      minView: 'minute',
      renderOn: null,
      startView: 'day'
    })
    .directive('datetimepicker', ['$log', 'dateTimePickerConfig', function datetimepickerDirective($log, defaultConfig) {

      function DateObject() {

        var tempDate = new Date();
        var localOffset = tempDate.getTimezoneOffset() * 60000;
        this.utcDateValue = tempDate.getTime();
        this.selectable = true;

        this.localDateValue = function () {
          return this.utcDateValue + localOffset;
        };

        var validProperties = ['utcDateValue', 'localDateValue', 'display', 'active', 'selectable', 'past', 'future'];

        for (var prop in arguments[0]) {
          /* istanbul ignore else */
          //noinspection JSUnfilteredForInLoop
          if (validProperties.indexOf(prop) >= 0) {
            //noinspection JSUnfilteredForInLoop
            this[prop] = arguments[0][prop];
          }
        }
      }

      var validateConfiguration = function validateConfiguration(configuration) {

        var validOptions = [
          'configureOn',
          'dropdownSelector',
          'minuteStep',
          'minView',
          'renderOn',
          'startView'
        ];

        for (var prop in configuration) {
          //noinspection JSUnfilteredForInLoop
          if (validOptions.indexOf(prop) < 0) {
            throw ('invalid option: ' + prop);
          }
        }

        // Order of the elements in the validViews array is significant.
        var validViews = ['minute', 'hour', 'day', 'month', 'year'];

        if (validViews.indexOf(configuration.startView) < 0) {
          throw ('invalid startView value: ' + configuration.startView);
        }

        if (validViews.indexOf(configuration.minView) < 0) {
          throw ('invalid minView value: ' + configuration.minView);
        }

        if (validViews.indexOf(configuration.minView) > validViews.indexOf(configuration.startView)) {
          throw ('startView must be greater than minView');
        }

        if (!angular.isNumber(configuration.minuteStep)) {
          throw ('minuteStep must be numeric');
        }
        if (configuration.minuteStep <= 0 || configuration.minuteStep >= 60) {
          throw ('minuteStep must be greater than zero and less than 60');
        }
        if (configuration.configureOn !== null && !angular.isString(configuration.configureOn)) {
          throw ('configureOn must be a string');
        }
        if (configuration.configureOn !== null && configuration.configureOn.length < 1) {
          throw ('configureOn must not be an empty string');
        }
        if (configuration.renderOn !== null && !angular.isString(configuration.renderOn)) {
          throw ('renderOn must be a string');
        }
        if (configuration.renderOn !== null && configuration.renderOn.length < 1) {
          throw ('renderOn must not be an empty string');
        }
        if (configuration.dropdownSelector !== null && !angular.isString(configuration.dropdownSelector)) {
          throw ('dropdownSelector must be a string');
        }

        /* istanbul ignore next */
        if (configuration.dropdownSelector !== null && ((typeof jQuery === 'undefined') || (typeof jQuery().dropdown !== 'function'))) {
          $log.error('Please DO NOT specify the dropdownSelector option unless you are using jQuery AND Bootstrap.js. ' +
            'Please include jQuery AND Bootstrap.js, or write code to close the dropdown in the on-set-time callback. \n\n' +
            'The dropdownSelector configuration option is being removed because it will not function properly.');
          delete configuration.dropdownSelector;
        }
      };

      return {
        restrict: 'E',
        require: 'ngModel',
        template: '<div class="datetimepicker table-responsive">' +
        '<table class="table table-condensed  {{ data.currentView }}-view">' +
        '   <thead>' +
        '       <tr>' +
        '           <th class="left" data-ng-click="changeView(data.currentView, data.leftDate, $event)" data-ng-show="data.leftDate.selectable"><i class="glyphicon glyphicon-arrow-left"/></th>' +
        '           <th class="switch" colspan="5" data-ng-show="data.previousViewDate.selectable" data-ng-click="changeView(data.previousView, data.previousViewDate, $event)">{{ data.previousViewDate.display }}</th>' +
        '           <th class="right" data-ng-click="changeView(data.currentView, data.rightDate, $event)" data-ng-show="data.rightDate.selectable"><i class="glyphicon glyphicon-arrow-right"/></th>' +
        '       </tr>' +
        '       <tr>' +
        '           <th class="dow" data-ng-repeat="day in data.dayNames" >{{ day }}</th>' +
        '       </tr>' +
        '   </thead>' +
        '   <tbody>' +
        '       <tr data-ng-if="data.currentView !== \'day\'" >' +
        '           <td colspan="7" >' +
        '              <span    class="{{ data.currentView }}" ' +
        '                       data-ng-repeat="dateObject in data.dates"  ' +
        '                       data-ng-class="{active: dateObject.active, past: dateObject.past, future: dateObject.future, disabled: !dateObject.selectable}" ' +
        '                       data-ng-click="changeView(data.nextView, dateObject, $event)">{{ dateObject.display }}</span> ' +
        '           </td>' +
        '       </tr>' +
        '       <tr data-ng-if="data.currentView === \'day\'" data-ng-repeat="week in data.weeks">' +
        '           <td data-ng-repeat="dateObject in week.dates" ' +
        '               data-ng-click="changeView(data.nextView, dateObject, $event)"' +
        '               class="day" ' +
        '               data-ng-class="{active: dateObject.active, past: dateObject.past, future: dateObject.future, disabled: !dateObject.selectable}" >{{ dateObject.display }}</td>' +
        '       </tr>' +
        '   </tbody>' +
        '</table></div>',
        scope: {
          onSetTime: '&',
          beforeRender: '&'
        },
        replace: true,
        link: function link(scope, element, attrs, ngModelController) {

          var configure = function configure() {
            var directiveConfig = {};

            if (attrs.datetimepickerConfig) {
              directiveConfig = scope.$parent.$eval(attrs.datetimepickerConfig);
            }

            var configuration = {};

            angular.extend(configuration, defaultConfig, directiveConfig);

            validateConfiguration(configuration);

            return configuration;
          };

          var configuration = configure();


          var startOfDecade = function startOfDecade(unixDate) {
            var startYear = (parseInt(moment.utc(unixDate).year() / 10, 10) * 10);
            return moment.utc(unixDate).year(startYear).startOf('year');
          };

          var dataFactory = {
            year: function year(unixDate) {
              var selectedDate = moment.utc(unixDate).startOf('year');
              // View starts one year before the decade starts and ends one year after the decade ends
              // i.e. passing in a date of 1/1/2013 will give a range of 2009 to 2020
              // Truncate the last digit from the current year and subtract 1 to get the start of the decade
              var startDecade = (parseInt(selectedDate.year() / 10, 10) * 10);
              var startDate = moment.utc(startOfDecade(unixDate)).subtract(1, 'year').startOf('year');

              var activeYear = ngModelController.$modelValue ? moment(ngModelController.$modelValue).year() : 0;

              var result = {
                'currentView': 'year',
                'nextView': configuration.minView === 'year' ? 'setTime' : 'month',
                'previousViewDate': new DateObject({
                  utcDateValue: null,
                  display: startDecade + '-' + (startDecade + 9)
                }),
                'leftDate': new DateObject({utcDateValue: moment.utc(startDate).subtract(9, 'year').valueOf()}),
                'rightDate': new DateObject({utcDateValue: moment.utc(startDate).add(11, 'year').valueOf()}),
                'dates': []
              };

              for (var i = 0; i < 12; i += 1) {
                var yearMoment = moment.utc(startDate).add(i, 'years');
                var dateValue = {
                  'utcDateValue': yearMoment.valueOf(),
                  'display': yearMoment.format('YYYY'),
                  'past': yearMoment.year() < startDecade,
                  'future': yearMoment.year() > startDecade + 9,
                  'active': yearMoment.year() === activeYear
                };

                result.dates.push(new DateObject(dateValue));
              }

              return result;
            },

            month: function month(unixDate) {

              var startDate = moment.utc(unixDate).startOf('year');
              var previousViewDate = startOfDecade(unixDate);
              var activeDate = ngModelController.$modelValue ? moment(ngModelController.$modelValue).format('YYYY-MMM') : 0;

              var result = {
                'previousView': 'year',
                'currentView': 'month',
                'nextView': configuration.minView === 'month' ? 'setTime' : 'day',
                'previousViewDate': new DateObject({
                  utcDateValue: previousViewDate.valueOf(),
                  display: startDate.format('YYYY')
                }),
                'leftDate': new DateObject({utcDateValue: moment.utc(startDate).subtract(1, 'year').valueOf()}),
                'rightDate': new DateObject({utcDateValue: moment.utc(startDate).add(1, 'year').valueOf()}),
                'dates': []
              };

              for (var i = 0; i < 12; i += 1) {
                var monthMoment = moment.utc(startDate).add(i, 'months');
                var dateValue = {
                  'utcDateValue': monthMoment.valueOf(),
                  'display': monthMoment.format('MMM'),
                  'active': monthMoment.format('YYYY-MMM') === activeDate
                };

                result.dates.push(new DateObject(dateValue));
              }

              return result;
            },

            day: function day(unixDate) {

              var selectedDate = moment.utc(unixDate);
              var startOfMonth = moment.utc(selectedDate).startOf('month');
              var previousViewDate = moment.utc(selectedDate).startOf('year');
              var endOfMonth = moment.utc(selectedDate).endOf('month');

              var startDate = moment.utc(startOfMonth).subtract(Math.abs(startOfMonth.weekday()), 'days');

              var activeDate = ngModelController.$modelValue ? moment(ngModelController.$modelValue).format('YYYY-MMM-DD') : '';

              var result = {
                'previousView': 'month',
                'currentView': 'day',
                'nextView': configuration.minView === 'day' ? 'setTime' : 'hour',
                'previousViewDate': new DateObject({
                  utcDateValue: previousViewDate.valueOf(),
                  display: startOfMonth.format('YYYY-MMM')
                }),
                'leftDate': new DateObject({utcDateValue: moment.utc(startOfMonth).subtract(1, 'months').valueOf()}),
                'rightDate': new DateObject({utcDateValue: moment.utc(startOfMonth).add(1, 'months').valueOf()}),
                'dayNames': [],
                'weeks': []
              };


              for (var dayNumber = 0; dayNumber < 7; dayNumber += 1) {
                result.dayNames.push(moment.utc().weekday(dayNumber).format('dd'));
              }

              for (var i = 0; i < 6; i += 1) {
                var week = {dates: []};
                for (var j = 0; j < 7; j += 1) {
                  var monthMoment = moment.utc(startDate).add((i * 7) + j, 'days');
                  var dateValue = {
                    'utcDateValue': monthMoment.valueOf(),
                    'display': monthMoment.format('D'),
                    'active': monthMoment.format('YYYY-MMM-DD') === activeDate,
                    'past': monthMoment.isBefore(startOfMonth),
                    'future': monthMoment.isAfter(endOfMonth)
                  };
                  week.dates.push(new DateObject(dateValue));
                }
                result.weeks.push(week);
              }

              return result;
            },

            hour: function hour(unixDate) {
              var selectedDate = moment.utc(unixDate).startOf('day');
              var previousViewDate = moment.utc(selectedDate).startOf('month');

              var activeFormat = ngModelController.$modelValue ? moment(ngModelController.$modelValue).format('YYYY-MM-DD H') : '';

              var result = {
                'previousView': 'day',
                'currentView': 'hour',
                'nextView': configuration.minView === 'hour' ? 'setTime' : 'minute',
                'previousViewDate': new DateObject({
                  utcDateValue: previousViewDate.valueOf(),
                  display: selectedDate.format('ll')
                }),
                'leftDate': new DateObject({utcDateValue: moment.utc(selectedDate).subtract(1, 'days').valueOf()}),
                'rightDate': new DateObject({utcDateValue: moment.utc(selectedDate).add(1, 'days').valueOf()}),
                'dates': []
              };

              for (var i = 0; i < 24; i += 1) {
                var hourMoment = moment.utc(selectedDate).add(i, 'hours');
                var dateValue = {
                  'utcDateValue': hourMoment.valueOf(),
                  'display': hourMoment.format('LT'),
                  'active': hourMoment.format('YYYY-MM-DD H') === activeFormat
                };

                result.dates.push(new DateObject(dateValue));
              }

              return result;
            },

            minute: function minute(unixDate) {
              var selectedDate = moment.utc(unixDate).startOf('hour');
              var previousViewDate = moment.utc(selectedDate).startOf('day');
              var activeFormat = ngModelController.$modelValue ? moment(ngModelController.$modelValue).format('YYYY-MM-DD H:mm') : '';

              var result = {
                'previousView': 'hour',
                'currentView': 'minute',
                'nextView': 'setTime',
                'previousViewDate': new DateObject({
                  utcDateValue: previousViewDate.valueOf(),
                  display: selectedDate.format('lll')
                }),
                'leftDate': new DateObject({utcDateValue: moment.utc(selectedDate).subtract(1, 'hours').valueOf()}),
                'rightDate': new DateObject({utcDateValue: moment.utc(selectedDate).add(1, 'hours').valueOf()}),
                'dates': []
              };

              var limit = 60 / configuration.minuteStep;

              for (var i = 0; i < limit; i += 1) {
                var hourMoment = moment.utc(selectedDate).add(i * configuration.minuteStep, 'minute');
                var dateValue = {
                  'utcDateValue': hourMoment.valueOf(),
                  'display': hourMoment.format('LT'),
                  'active': hourMoment.format('YYYY-MM-DD H:mm') === activeFormat
                };

                result.dates.push(new DateObject(dateValue));
              }

              return result;
            },

            setTime: function setTime(unixDate) {
              var tempDate = new Date(unixDate);
              var newDate = new Date(tempDate.getUTCFullYear(), tempDate.getUTCMonth(), tempDate.getUTCDate(), tempDate.getUTCHours(), tempDate.getUTCMinutes(), tempDate.getUTCSeconds(), tempDate.getUTCMilliseconds());

              var oldDate = ngModelController.$modelValue;
              ngModelController.$setViewValue(newDate);

              if (configuration.dropdownSelector) {
                jQuery(configuration.dropdownSelector).dropdown('toggle');
              }

              scope.onSetTime({newDate: newDate, oldDate: oldDate});

              return dataFactory[configuration.startView](unixDate);
            }
          };

          var getUTCTime = function getUTCTime(modelValue) {
            var tempDate = (modelValue ? moment(modelValue).toDate() : new Date());
            return tempDate.getTime() - (tempDate.getTimezoneOffset() * 60000);
          };

          scope.changeView = function changeView(viewName, dateObject, event) {
            if (event) {
              event.stopPropagation();
              event.preventDefault();
            }

            if (viewName && (dateObject.utcDateValue > -Infinity) && dateObject.selectable && dataFactory[viewName]) {
              var result = dataFactory[viewName](dateObject.utcDateValue);

              var weekDates = [];
              if (result.weeks) {
                for (var i = 0; i < result.weeks.length; i += 1) {
                  var week = result.weeks[i];
                  for (var j = 0; j < week.dates.length; j += 1) {
                    var weekDate = week.dates[j];
                    weekDates.push(weekDate);
                  }
                }
              }

              scope.beforeRender({
                $view: result.currentView,
                $dates: result.dates || weekDates,
                $leftDate: result.leftDate,
                $upDate: result.previousViewDate,
                $rightDate: result.rightDate
              });

              scope.data = result;
            }
          };

          ngModelController.$render = function $render() {
            scope.changeView(configuration.startView, new DateObject({utcDateValue: getUTCTime(ngModelController.$viewValue)}));
          };

          if (configuration.configureOn) {
            scope.$on(configuration.configureOn, function () {
              configuration = configure();
              ngModelController.$render();
            });
          }
          if (configuration.renderOn) {
            scope.$on(configuration.renderOn, ngModelController.$render);
          }
        }
      };
    }]);
}));