AS3: Copy display Object

copy.as

public static function copy(d:DisplayObject, w:Number, h:Number, smoothing : Boolean = true):	Bitmap
{
	var data:BitmapData = new BitmapData(w, h, true, 0xffffff);
			
	var bmp:Bitmap = new Bitmap(data);
	bmp.smoothing = smoothing;
	bmp.bitmapData.draw(d);
			
	return bmp;
}