<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
var s=[];
function findChild(x){
var c=x.childNodes;
for(var i=0;i<c.length;i++){
if(c[i].tagName){
s.push(c[i].id);
}
if(c[i].childNodes){
findChild(c[i]);
}
}
}
function init(){
var a=document.getElementById("a");
s.push(a.id);
findChild(a);
alert(s);
}
window.onload=init;
</script>
</head>
<body>
<div id="a">
a
<div id="b">
b
<div id="c">c</div>
<div>
</div>
</body>
</html>
这样试试
