The following code shows how to create nav bar with active item.
<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js'></script>
<script type="text/javascript"
src="http://code.jquery.com/ui/1.8.18/jquery-ui.min.js"></script>
<script type='text/javascript'
src="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/js/bootstrap.min.js"></script>
<link rel="stylesheet" type="text/css"
href="http://netdna.bootstrapcdn.com/twitter-bootstrap/2.2.1/css/bootstrap-combined.min.css">
</head><!-- w w w . j a va 2 s . c o m-->
<body style='margin:30px'>
<div class="navbar">
<div class="navbar-inner">
<a class="brand" href="#">Title</a>
<ul class="nav">
<li class="active"><a href="#">Home</a></li>
<li><a href="#">Link</a></li>
<li><a href="#">Link</a></li>
</ul>
</div>
</div>
</body>
</html>