body>
xmp id=x1>
    root>
        node>test/node>
    /root>
/xmp>
/body>
script>
if(!document.all)
    XMLDocument.prototype.__defineGetter__("xml",function(){return new XMLSerializer().serializeToString(this)})

function createXml(str){
    if(document.all){
        var xmlDom=new ActiveXObject("Microsoft.XMLDOM")
        xmlDom.loadXML(str)
        return xmlDom
    }
    else
        return new DOMParser().parseFromString(str, "text/xml")
}
xml=createXml(document.getElementById("x1").innerHTML)
alert(xml.xml)
/script>