<!DOCTYPE html>
<html>
<head>
<script type='text/javascript'
src='http://code.jquery.com/jquery-1.9.1.js'></script>
<script type='text/javascript'>
$(window).load(function(){
$('li:gt(3)').hide();
});
</script>
</head>
<body>
<ul>
<li>list</li>
<li>list</li>
<li>list</li>
<li>list</li>
<li>hide this list</li>
<li>hide this list</li>
<li>hide this list</li>
<li>hide this list</li>
<li>hide this list</li>
<li>hide this list</li>
</ul>
</body>
</html>