Loading Variables from PHP

programming flash
1

I have a main movie that loads variables from a php script using URLLoader. When I test the movie in flash on my computer, everything works fine. When I upload it to my site, it stops working. Any help is appreciated. Thx.

var newsLoader:URLLoader = new URLLoader();
var newsRequest:URLRequest = new URLRequest("http://www.myDomain.com/getNews.php");
newsLoader.dataFormat = URLLoaderDataFormat.VARIABLES;
newsLoader.addEventListener(Event.COMPLETE, newsLoadComplete);

function newsLoadComplete(event:Event):void {
	newsText.htmlText = newsLoader.data.importedText;
	gotoAndPlay("loadComplete");
}