This function will trace the path DisplayObject for a DisplayObject back to root in Actionscript 3. Useful for seeing witch containers it’s belonging to.

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private function tracePath (dispObj : DisplayObject, s : String = "") : void
{
	if(dispObj.parent != null)
	{
		tracePath(dispObj.parent, s + "." + dispObj.name);
	}
	else
	{
		var a : Array = s.split(".").reverse();
		var output : String = "";
		for (var i : Number = 0;i < a.length; i++) 
		{
			output = output + "." + a[i];
		}
		trace("PATH: " + output.substr(1, output.length - 2));
	}
}

Usage example:

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objName.name = "myDisplayObjectTest"
tracePath(objName);

Output example:

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PATH: root1.movPreloaderHolder.loaderHolder.instance3.myDisplayObjectTest

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