A stageX, stageY property for MovieClips - how do you do it?

Question

Getting the absolute position of dynamically created, moving MovieClips can be a real pain, especially if you use radomization and don`t know where or how deeply nested they spawn.
The localToGlobal function can make your code really unreadable, so I tried to come up with a functionality that would give me access to any Sprite/MovieClips position on the stage no matter where.
Kind of a property that some Events have (stageX, stageY).
Basically my goal would be to have no localToGlobal/GlobalToLocal conversions in my document class, but doing all that stuff inside the instances themselves.
What I have so far:
import flash.display.MovieClip;
import flash.geom.Point;
var _nestLevel:int = 0;
var l:int = 0;
var parentList:Array = new Array();
getAbsolutePoint(this);
function getAbsolutePoint(_mc:MovieClip):void
    if (_mc != MovieClip(root))
        _nestLevel++;
        getAbsolutePoint(MovieClip(_mc.parent));
    else
        while (l<_nestLevel)
            l++;
            parentList.push("parent");
            trace(parentList);
          //traces correctly depending on the nesting Level (e.g. parent,parent,parent)
        //this throws a 1010 Error
        trace("Global coords : " + _mc[parentList].localToGlobal(new Point(_mc[parentList].x,_mc[parentList].y)));
Any ideas how to get this to work?

Answer 1

if you answered yes and if the final shape is at 0,0, you can use returnF to return the movieclips position relative to the global coordinate system:
var stageX:int=this.x;
var stageY:int=this.y;
defineF(this);
function defineF(mc:MovieClip):void{
stageX+=mc.parent.x;
stageY+=mc.parent.y;
if(mc.parent.parent is MovieClip){
defineF(MovieClip(mc.parent));
function returnF():Array{
return [stageX,stageY];