I have two files A.swf and B.swf written in ActionScript 2 and 3 seperately. In the A.swf, i have a button btnA which loads the B.swf and in the latter, i have a button btnB which loads the A.swf. My dilema is that it works perfectly well in ActionScript 2.0 using the codes below while i have display issues with that written in AS3.

In Action Script 2.0, i could load either A.swf or B.swf using the codes below and when i do, the calling swf is replaced by the called.

on (release)
{
loadMovieNum("A.swf", 0);
}

on (release)
{
loadMovieNum("B.swf", 0);
}

Presently, i use ActionScript 3.0 and loading the external movie using the loader class presents a dilema as the calling swf remains in the background thus, obstructing the called's display view. Here's a look at my code for both movies:

btnA.addEventListener(MouseEvent.CLICK,loadB);

function loadB(evt:MouseEvent):void{
var swfRequest:URLRequest = new URLRequest("B.swf";
var swfLoader:Loader = new Loader();
swfLoader.load(swfRequest);
addChild(swfLoader);
}

btnB.addEventListener(MouseEvent.CLICK,loadA);

function loadA(evt:MouseEvent):void{
var swfRequest:URLRequest = new URLRequest("A.swf";
var swfLoader:Loader = new Loader();
swfLoader.load(swfRequest);
addChild(swfLoader);
}

I've tried using the addChildAt() method too but the calling movie remains in the background.