<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "
http://www.w3.org/TR/html4/loose.dtd">
<HTML>
<HEAD>
<BODY>
<ul id="ul">
<li>1</li>
<li>2</li>
<li>3</li>
</ul>
<script type="text/javascript">
var _ul = document.getElementById('ul');
var _li = _ul.getElementsByTagName('li');
alert(_li.length)
</script>
</BODY>
</HTML>
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