full browser external preloader

I have a preloader and on completion it loads an external .swf. My external swf has full browser actionscript. How can I get the external PRELOADER to load the external swf and retain its full browser settings?

This is my preloader actionscript:

var l:Loader = new Loader();
l.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loop);
l.contentLoaderInfo.addEventListener(Event.COMPLETE, done);
l.load(new URLRequest("tester.swf"));

function loop(e:ProgressEvent):void
{
 var perc:Number = e.bytesLoaded / e.bytesTotal;
 percent.text = Math.ceil(perc*100).toString();
}
function done(e:Event):void
{
 removeChildAt(0);
 percent = null;
 addChild(l);
}