AS3: Load fresh XML without Caching.

I found the problem, and I try to found on the internet. Some poster commanded using this:

var Randomstr:String = '?somvarname='+random(100);

I don't know, but it does not for me. so I use this instead of:

var iRequestXML:URLRequest = new URLRequest("images/" + editData);
var iLoaderXML:URLLoader = new URLLoader;
var iVaXML:URLVariables = new URLVariables;
iVaXML.noCach = int(Math.random() * 999);
iRequestXML.method = URLRequestMethod.POST;
iRequestXML.data = iVaXML;
iLoaderXML.addEventListener(Event.COMPLETE, loadXMLEdit);
iLoaderXML.addEventListener(IOErrorEvent.IO_ERROR, loadXMLError);
iLoaderXML.load(iRequestXML);

Use URLVariable instead of use query string.