Resize mc to stage h/w

programming flash
1

I’ve been working on my web site. Its 1024x768px and i run it fullscreen.
I come up with an idea and i added a 1024x768px to the top (new frame) as a intro like action.
When i try to resize it to stage it will really mess up my whole page
And also cause of resize my movieclip stretched and looking terrible

var xy:Tween = new Tween(asdasd, "_x", Strong.easeInOut, 0, -1024, 2, true);

asdasd._width=Stage.width;
asdasd_height=Stage.height;

Stage.scaleMode = "noScale"
var myListener:Object = new Object();

myListener.onResize = function () {

    asdasd_width=Stage.width;
    asdasd._height=Stage.height;

}
Stage.addListener(myListener);

I need a opinion to solve this little problem :eye: