请帮忙解答
<html>
<head>
<script type="text/javascript">
var xmlDoc;
function loadXML()
{
if (window.ActiveXObject)
{
xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
xmlDoc.async=false;
xmlDoc.load("1.xml");
getmessage();
}
else if (document.implementation && document.implementation.createDocument)
{
xmlDoc=document.implementation.createDocument("","",null);
xmlDoc.load("1.xml");
xmlDoc.onload=getmessage;
}
else
{
alert('Your browser cannot handle this script');
}
}
function getmessage()
{
document.getElementById("to").innerHTML=xmlDoc.getElementsByTagName("to")[0].childNodes[0].nodeValue;
document.getElementById("from").innerHTML=xmlDoc.getElementsByTagName("from")[0].childNodes[0].nodeValue;
document.getElementById("message").innerHTML=xmlDoc.getElementsByTagName("body")[0].childNodes[0].nodeValue;
}
</script>
</head>
<body onload="loadXML()">
<h1>xml test</h1>
<p><b>To:</b> <span id="to"></span><br />
<b>From:</b> <span id="from"></span><br />
<b>Message:</b> <span id="message"></span>
</p>
</body>
</html>
<?xml version="1.0" ?>
<TreeNodes>
<Treenode to="1" from="jbsz" body="0" >
</Treenode>
<Treenode to="2" from="grsz" body="1">
</Treenode>
<Treenode to="3" from="bmdmsz" body="1">
</Treenode>
</TreeNodes>