Add child and stage events

Hi all
so my issue is that when my stage is resized one of my attached library items. Is side the document class called myMenu is not repositioning itself after the resize event is being called once the stage resizing event occurs.

cheers for any pointers brndn

function resizer(event:Event = null):void{
	circleMenu.y = stage.stageHeight/2;
	myMenu.y = stage.stageHeight/2;
}
			
function LOADMENU():void
			{
			
var newMenuHolder:MenuHolder = new MenuHolder();
var myMenu = addChild( newMenuHolder);;

myMenu.y = stage.stageHeight/2;
myMenu.x = 240;

}