I use this way try to get "xml document"

$.get("test.xml","",dealXML(),"xml");

It works in FF, but can not use in IE,I still get "string" data type in IE,

than I google it ,found that the header Content must be "text\\xml",but I use JQuery in a CD, so it`s impossible to change the header , but finally I found a way to solve this problem.

function parseXML( xml ) {

if( window.ActiveXObject && window.GetObject) {

var dom = new ActiveXObject( 'Microsoft.XMLDOM' );

dom.loadXML( xml );

return dom;

}

if( window.DOMParser )

return new DOMParser().parseFromString( xml, 'text/xml' );

throw new Error( 'No XML parser available' );

}

I use this function to change the data to be XML document,

and it work , hope it can help JQuery to be more powerful in the future.