reading xml embedded in HTML with JavaScript.

I`m trying to write XML in HTML and read it with JavaScript,
but it`s not working.
please help.

my XML in HTML.

<xml id="xmldata" style='display:none;'>
<markers>
<marker lat="50.895842" lng="-1.4051" html="text"/>
</markers>
</xml> 

Code (markup):

Javascript trying to read my XML.

document.getElementById('xmldata');
if(xml.documentElement == null)
xml.documentElement = xml.firstChild;

 var markers = xmlDoc.documentElement.getElementsByTagName("marker");
          
          for (var i = 0; i < markers.length; i++) {
            // obtain the attribues of each marker
            var lat = parseFloat(markers[i].getAttribute("lat"));
            var lng = parseFloat(markers[i].getAttribute("lng"));
            var point = new GLatLng(lat,lng);
            var html = markers[i].getAttribute("html");
          

            // create the marker
            var marker = createMarker(point,label,html);
            map.addOverlay(marker);
          }

Code (markup):

 

try:

var xml = document.getElementById('xmldata');
if(xml.documentElement == null)
xml.documentElement = xml.firstChild;

 var markers = xml.getElementsByTagName("marker");
          
          for (var i = 0; i < markers.length; i++) {
            // obtain the attribues of each marker
            var lat = parseFloat(markers[i].getAttribute("lat"));
            var lng = parseFloat(markers[i].getAttribute("lng"));
            var point = new GLatLng(lat,lng);
            var html = markers[i].getAttribute("html");
          

            // create the marker
            var marker = createMarker(point,label,html);
            map.addOverlay(marker);
          }

Code (markup):

the getElementsByTagName function is not a member of the documentElement, i believe this should solve your problem.