XML Document Passed As Jsp Parameter In Javascript Ok With Mozilla, Not In IE!!

I have a strange problem... I have a form with a text area that contains an XML document. This document can be modified by the user.

Once the document has been modified, the user pressed the "Submit" button to submit the modification (onclick=modify())... and go to another jsp page.... in my javascript, I have the following code:

function modify()
{
myRand=parseInt(Math.random()*99999999); // cache buster
var docXML=document.forms[0].xml.value;
var plist="myRand="+myRand+"&docXML="+escape(docXML);
url="modify_xml.jsp?"+plist;
document.forms[0].action=url;
document.forms[0].submit();
}


With Firefox, the problem does not occur.... but with Explorer, the form is not even submitted!!!!! Is there a workaround for this? The XML document is not even very big.