Requried
Example
<link rel="stylesheet" href="css/iphone.css" type='text/css' media='all' />
<script type="text/javascript" src="js/jquery.js"></script>
<script type="text/javascript" src="js/jquery-ui.js"></script>
<script type="text/javascript" src="js/ui/ui.iMenu.js"></script>
<script type="text/javascript">
$(document).ready(function(){
// jquery.iphone.js have autoloader, but you can use
// alternative method of init widget
$(".menu").iMenu();
});
</script>
<ul class="menu">
<li><a href="#" title="Label 1" class="arrow">Label 1</a></li>
<li><a href="#" title="Label 2">Label 2</a></li>
<li><a href="#" title="Label 3">Label 3</a></li>
<li><a href="#" title="Label 4">Label 4</a></li>
</ul>
Demo