Moving movie clips to orginal start positions advice?

Is there action script for returning a movie clip to its original position within a movie? In a drag and drop situation for example, if the drop target does not equal its intended hit target it should return to its original position. I’m aware that this can be done with entering its x/y positions, but I was hoping to use this code in a function that could be used for more than one movie clip without having to enter the different x/y positions. Thanks