Simple line graph using d3.js

<!DOCTYPE html>
<meta charset="utf-8">
    <script src="https://code.jquery.com/jquery-2.0.2.min.js"></script>
    <link data-require="bootstrap@3.2.0" data-semver="3.2.0" rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.css" />
    <script data-require="bootstrap@3.2.0" data-semver="3.2.0" src="https://maxcdn.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.js"></script>

<style> /* set the CSS */

body { font: 12px Arial;}

path { 
  stroke: steelblue;
	stroke-width: 2;
	fill: none;
}

.axis path,
.axis line {
	fill: none;
	stroke: grey;
	stroke-width: 1;
	shape-rendering: crispEdges;
}

.node {
  cursor: pointer;
}

.node circle {
  fill: #fff;
  stroke: steelblue;
  stroke-width: 1.5px;
}

.node text {
  font: 10px sans-serif;
}

.link {
  fill: none;
  stroke: #ccc;
  stroke-width: 1.5px;
}

.control.glyphicon {
  position: static;
}

</style>
<body>

<!-- load the d3.js library -->	
<script src="http://d3js.org/d3.v3.min.js"></script>

<script>
var treeData = [
  {
    "name": "Top Level",
    "parent": "null",
    "children": [
      {
        "name": "Level 2: A",
        "parent": "Top Level",
        "children": [
          {
            "name": "Son of A",
            "parent": "Level 2: A"
          },
          {
            "name": "Daughter of A",
            "parent": "Level 2: A"
          }
        ]
      },
      {
        "name": "Level 2: B",
        "parent": "Top Level"
      }
    ]
  }
];

// Set the dimensions of the canvas / graph
var	margin = {top: 30, right: 20, bottom: 30, left: 100},
	width = 800 - margin.left - margin.right,
	height = 270 - margin.top - margin.bottom;

var i = 0,
	duration = 750,
	root;
 
var tree = d3.layout.tree()
	.size([height, width]);
 
var diagonal = d3.svg.diagonal()
	.projection(function(d) { return [d.y, d.x]; });
 
var svg = d3.select("body").append("svg")
	.attr("width", width + margin.right + margin.left)
	.attr("height", height + margin.top + margin.bottom)
  .append("g")
	.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
 
root = treeData[0];
root.x0 = height / 2;
root.y0 = 0;

update(root);
  
function update(source) {
 
  // Compute the new tree layout.
  var nodes = tree.nodes(root).reverse(),
	  links = tree.links(nodes);
 
  // Normalize for fixed-depth.
  nodes.forEach(function(d) { d.y = d.depth * 180; });
 
  // Update the nodes…
  var node = svg.selectAll("g.node")
	  .data(nodes, function(d) { return d.id || (d.id = ++i); });
 
  // Enter any new nodes at the parent's previous position.
  var nodeEnter = node.enter().append("g")
	  .attr("class", "node")
	  .attr("transform", function(d) { return "translate(" + source.y0 + "," + source.x0 + ")"; })
	  .on("click", click);
 
  nodeEnter.append("circle")
	  .attr("r", 1e-6)
	  .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });

  nodeEnter.append("svg:foreignObject")
        .attr("width", 20)
        .attr("height", 20)
        .attr("y", "-7px")
        .attr("x", "-7px")
    .append("xhtml:span")
	      .attr("class", "control glyphicon glyphicon-zoom-in");
	  
  nodeEnter.append("text")
	  .attr("x", function(d) { return d.children || d._children ? -13 : 13; })
	  .attr("dy", ".35em")
	  .attr("text-anchor", function(d) { return d.children || d._children ? "end" : "start"; })
	  .text(function(d) { return d.name; })
	  .style("fill-opacity", 1e-6);
 
  // Transition nodes to their new position.
  var nodeUpdate = node.transition()
	  .duration(duration)
	  .attr("transform", function(d) { return "translate(" + d.y + "," + d.x + ")"; });
 
  nodeUpdate.select("circle")
	  .attr("r", 10)
	  .style("fill", function(d) { return d._children ? "lightsteelblue" : "#fff"; });
 
  nodeUpdate.select("text")
	  .style("fill-opacity", 1);
 
  // Transition exiting nodes to the parent's new position.
  var nodeExit = node.exit().transition()
	  .duration(duration)
	  .attr("transform", function(d) { return "translate(" + source.y + "," + source.x + ")"; })
	  .remove();
 
  nodeExit.select("circle")
	  .attr("r", 1e-6);
 
  nodeExit.select("text")
	  .style("fill-opacity", 1e-6);
 
  // Update the links…
  var link = svg.selectAll("path.link")
	  .data(links, function(d) { return d.target.id; });
 
  // Enter any new links at the parent's previous position.
  link.enter().insert("path", "g")
	  .attr("class", "link")
	  .attr("d", function(d) {
		var o = {x: source.x0, y: source.y0};
		return diagonal({source: o, target: o});
	  });
 
  // Transition links to their new position.
  link.transition()
	  .duration(duration)
	  .attr("d", diagonal);
 
  // Transition exiting nodes to the parent's new position.
  link.exit().transition()
	  .duration(duration)
	  .attr("d", function(d) {
		var o = {x: source.x, y: source.y};
		return diagonal({source: o, target: o});
	  })
	  .remove();
 
  // Stash the old positions for transition.
  nodes.forEach(function(d) {
	d.x0 = d.x;
	d.y0 = d.y;
  });
}
 
// Toggle children on click.
function click(d) {
  if (d.children) {
	d._children = d.children;
	d.children = null;
  } else {
	d.children = d._children;
	d._children = null;
  }
  update(d);
}

</script>
</body>

date,close
1-May-12,58.13
30-Apr-12,53.98
27-Apr-12,67.00
26-Apr-12,89.70
25-Apr-12,99.00
24-Apr-12,130.28
23-Apr-12,166.70
20-Apr-12,234.98
19-Apr-12,345.44
18-Apr-12,443.34
17-Apr-12,543.70
16-Apr-12,580.13
13-Apr-12,605.23
12-Apr-12,622.77
11-Apr-12,626.20
10-Apr-12,628.44
9-Apr-12,636.23
5-Apr-12,633.68
4-Apr-12,624.31
3-Apr-12,629.32
2-Apr-12,618.63
30-Mar-12,599.55
29-Mar-12,609.86
28-Mar-12,617.62
27-Mar-12,614.48
26-Mar-12,606.98