Page navigation bar in Angular.js

http://amitgharat.wordpress.com/2012/09/19/page-navigation-bar-in-angular-js/

HTML

<link rel="stylesheet" href="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/2.1.1/css/bootstrap.min.css">
<nav class="navbar navbar-default navbar-fixed-top navbar-inverse" role="navigation">
  <!-- Brand and toggle get grouped for better mobile display -->
  <div class="navbar-header">
    <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
      <span class="sr-only">Toggle navigation</span>
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
      <span class="icon-bar"></span>
    </button>
    <a class="navbar-brand" href="#">The Home Depot</a>
  </div>

  <!-- Collect the nav links, forms, and other content for toggling -->
  <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
    <ul class="nav navbar-nav">
      <li class="active">
      
      <a href="#"><i class="glyphicon glyphicon-home"></i> Home</a></li>
      <li><a href="announcements.html">Announcements</a></li>
      <li><a href="#">Hours of Operation</a></li>

    </ul>
    <form class="navbar-form navbar-right" role="search">
      <div class="form-group">
        <input type="text" class="form-control" placeholder="Search">
      </div>
      <button type="submit" class="btn btn-default"><i class="glyphicon glyphicon-search"></i></button>
    </form>
    <ul class="nav navbar-nav navbar-right">
      <li><a href="analytics.html">Analytics</a></li>
      <li class="dropdown">
        <a href="#" class="dropdown-toggle" data-toggle="dropdown">Dropdown <b class="caret"></b></a>
        <ul class="dropdown-menu">
          <li><a href="#">Action</a></li>
          <li><a href="#">Another action</a></li>
          <li><a href="#">Something else here</a></li>
          <li class="divider"></li>
          <li><a href="#">Separated link</a></li>
        </ul>
      </li>
    </ul>
  </div><!-- /.navbar-collapse -->
</nav>
<div class="well navbar-fixed-top navbar-inverse" ng-app="navList">
 ...

JavaScript

var navList = angular.module('navList', []);

navList.controller('navCtrl', ['$scope', '$location', function ($scope, $location) {
    $scope.navClass = function (page) {
        var currentRoute = $location.path().substring(1) || 'home';
        return page === currentRoute ? 'active' : '';
    };        
}]);