Externally specifying the URL of a .xml document?

Hey guys,

Pretty new to CS4 and could do with some help. I have a .FLA file which is loading images dynamically from a .xml file called “source.xml” using this code:

// url to slideshow xml
var strXMLPath:String = “source.xml”;
// slideshow xml loader
var xmlLoader:URLLoader;
// slideshow xml
var xmlSlideshow:XML;

function init():void {
// create new urlloader for xml file
xmlLoader = new URLLoader();
// add listener for complete event
xmlLoader.addEventListener(Event.COMPLETE, onXMLLoadComplete);
// load xml file
xmlLoader.load(new URLRequest(strXMLPath));

It all works fine, but instead of specifying the URL for the .xml file within the .FLA file, I need to be able to specify it externally, preferably within the HTML doc the flash is used in. What is the best way to do this? FlashVars? Any help/advice would be great, thanks.

Lee.