<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>An XHTML 1.0 Strict standard template</title>
<meta http-equiv="content-type" content="text/html;charset=gbk" />
<script type="text/javascript">
function getElementsByClass(node,searchClass,tag)
{
var classElements = new Array();
if ( node == null ) node = document;
if ( tag == null ) tag = '*';
var els = node.getElementsByTagName(tag);
var elsLen = els.length;
var pattern = new RegExp("(^|\\s)"+searchClass+"(\\s|$)");
for (i = 0, j = 0; i < elsLen; i++)
{
if ( pattern.test(els[i].className) )
{
classElements[j] = els[i]; j++;
}
}
return classElements;
}
</script>
</head>
<body>
<div class="foo">
在做完getElementsByClass的测试时，有点困惑。就是不能像用getElementsById（）那样的随便，但是它也能够很好地工作，像它们一样。<p/>
</div>
<script type="text/javascript">
var oO=getElementsByClass(document,'foo','*');
var p=(oO.background="#f00"); //可以直接访问或设置属性
alert(p);
</script>
</body>
</html>