How to call a function on the main timeline

programming flash
1

I have a button in a movieclip and im trying to tell it to call a function on the main timeline. How do I do this? root something?

Here is the function on the main timeline im trying to call


function hallwaylurkerload (evt:MouseEvent):void {
var currentGalleryID:int = 1;
loader.load(new URLRequest(galleries[currentGalleryID][0]));
}

and here is the code inside the movieclip


stop();
apartmentlurker.addEventListener(MouseEvent.CLICK, hallwaylurkerload);