The code copy is as follows:
<script type="text/javascript" src="jquery1.4.js"></script>
<script type="text/javascript">
$(function(){
$(".test li,.test dd").click(function(){
alert('self is capitalized: ' + $(this).get(0).tagName + '/n convert to lowercase using toLowerCase(): ' + $(this).get(0).tagName.toLowerCase() + '/n convert to uppercase using toUpperCase(): ' + $(this).get(0).tagName.toUpperCase());
})
});
</script>
<div>
<ul>
<li>lili</li>
<li>lili</li>
</ul>
<dl>
<dd>dddd</dd>
<dd>dddd</dd>
</dl>
</div>