Relative positioning external loaded elements

I’m trying positioning external loaded images from an XML and position them according to the stage dimensions.
Here’s what I’ve come so far: creating a loader for each image and then position them according to their size.
Is there any way to do this avoiding to create a multidimensional array (that’s to say two arrays one for the images name and one for the loaders)?


private function loadBg():void {
            for each (var image:XML in xml.BG..IMG) {
                var loader:Loader = new Loader();
                loader.load(new URLRequest([email protected]));
                loader.addEventListener(Event.COMPLETE, positionBg);
                addChild(loader);
            }
        }
        
        private function positionBg(e:Event):void {
            .....
            switch (?????) {
                    case "bg_br.jpg":
                    loader.x=stage.stageWidth-loader.width;
                    loader.y= stage.stageHeight-loader.height;
                    break;
                    case "bg_bl.jpg":
                    loader.x=stage.stageWidth-loader.width;
                    loader.y= stage.stageHeight-loader.height;
                    break;
                    case "bg_tr.jpg":
                    loader.x=stage.stageWidth-loader.width;
                    loader.y= 0;
                    break;
                }
            ......
        }