Problem resizing movieclip width to stage width dynamically

programming flash
1

Hello all,
I need a tutorial or suggestion as to how to get a movieclip named “topnav” to resize it’s width to match that of the stage. I am trying to resize the width of a top nav bar across a resizable RIA. I have started with the following code but with only partial success:


stage.addEventListener(Event.RESIZE, resizeListener);

function resizeListener (e:Event):void {
    var reg2 = stage.stageWidth / 100;
    topnav.scaleX = reg2;

}
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;

Basically, all I need to know is why isn’t what I have in the resizeListener function not working? Anyone know how to do this correctly? I sure would appreciate it.