<html>
<head>
<script type="text/javascript" src='http://code.jquery.com/jquery-1.5.2.js'></script>
<script type="text/javascript">
$(document).ready(function(){
$("p").clone().add("<span>Again</span>").appendTo(document.body);
});
</script>
<style>
div { width:40px; height:40px; margin:10px; float:left;}
</style>
</head>
<body>
<p>Hello</p>
</body>
</html>