Using getRect as a drop target?

Question

Hi Team,
I want to use getRect for a target that is on the bottom layer of my timeline so that I can detect is an answer has been dropped on a target even if something is covering it.  My code at the moment isnt working, anywhere I drop my answer acts as if it is on the target.
This is so I can have multiple answers for the one target, the problem I have been having is once a correct answer has been dropped, it then covers the target and causes other answers to not be able to "see" it.
Any ideas,
Cheers
Sub
var startX:Number;
var startY:Number;
trace(getRect(target1));
this.ans1.addEventListener(MouseEvent.MOUSE_DOWN, pickMe1);
this.ans1.addEventListener(MouseEvent.MOUSE_UP,dropMe1);
function pickMe1(event:MouseEvent):void {
    event.target.startDrag();
          startX = event.target.x;
    startY = event.target.y;
function dropMe1(event:MouseEvent):void {
    event.target.stopDrag();
          var myTargetName:String = "ans1" + event.target.name;
if (event.target.dropTarget != null && getRect(target1)){
        event.target.removeEventListener(MouseEvent.MOUSE_DOWN, pickMe1);
        event.target.removeEventListener(MouseEvent.MOUSE_UP, dropMe1);
        event.target.buttonMode = false;
        event.target.x = target1.x;
        event.target.y = target1.y;
}else{
          event.target.x = startX;
    event.target.y = startY;
this.ans1.buttonMode = true;

Answer 1

what exactly do you mean by "Over the target and not just touching it"? 
i know roughly what you mean but that's not good enough for computer programming.  you must be precise.