Binding Radio buttons in AngularJs

<!doctype html>
<html>

<head>
  <meta charset="utf-8">
  <title>Binding Radio buttons in AngularJs</title>
  <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.3/angular.js"></script>
  <script>
    var app = angular.module('radiobtnApp', []);

    app.controller('radiobtnCtrl', function($scope) {
      $scope.getGender = function() {
        return true;
      };
    });
  </script>
</head>

<body ng-app="radiobtnApp">
  <div ng:controller="radiobtnCtrl">
    <h1>Binding Radio buttons in AngularJs</h1> Select your Gender :
    <br/>
    <input type="radio" name="gender" ng-model="getGender()" ng-value="true">Male
    <input type="radio" name="gender" ng-model="getGender()" ng-value="false">Female
   <br>
      <div>
    <br><a href="http://www.code-sample.com/2014/09/angularjs-documentation.html">Click for more detail</a>
  </div>
  </div>
  

</body>

</html>

// Code goes here

/* Styles go here */