Mega Code Archive
Select inside body tag
<![CDATA[
< html>
<head>
<style>
.test{ border: 1px solid red; }
</style>
<script type="text/javascript" src="js/jquery-1.3.2.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("span:first").text($(":hidden", document.body).length + " hidden elements.");
});
</script>
</head>
<body>
<span></span>
<div></div>
<div style="display:none;">Hider!</div>
<div></div>
<form>
<input type="hidden" />
</form>
<span></span>
</body>
</html>
]]>