Drag drop objects to multiple target areas

Question

Hi,
I am trying to  make a quiz on metals. I have several elements which i want to fall into  multiple target areas (e.g. the target areas are shaded grey in the  following swf; metal_mc, nonmetal_mc, metalloid_mc). I can make  individuals match to target areas (as there are tutorials for that) but i  want each one to be able to slide in to any target area (and someday i  want to create a solve button which will then place each element in the  correct place).
http://megaswf.com/serve/65365/
I  have started all over and have designated only chlorine to move (for  the moment) but how do i code it to allow it to fall into any of the  grey areas?
var objectoriginalX:Number;
var objectoriginalY:Number;
chlorine_mc.addEventListener(MouseEvent.MOUSE_DOWN, pickUp);
chlorine_mc.addEventListener(MouseEvent.MOUSE_UP, dropIt);
function pickUp(event:MouseEvent):void {
    event.target.startDrag(true);
function dropIt(event:MouseEvent):void {
    event.target.stopDrag();
chlorine_mc.buttonMode = true;
function pickupObject(event:MouseEvent):void {
event.target.startDrag(true);
event.target.parent.addChild(event.target);
objectoriginalX = event.target.x;
objectoriginalY = event.target.y;
(I would like to do it in AS3)
any ideas or other similar tutorials most appreciated.
many thanks,
sosodef

Answer 1

If you are not familiar with using the trace function, you should become familiar with it ASAP.  It is made for troubleshooting... it is your firend in finding things out.
If you place...
trace(event.target.dropTarget);
before your conditional line, you will see what you are actually looking at wrt the dropTarget.  Your code from yesterday is not what you just showed, it was...
if (event.target.dropTarget != null && event.target.dropTarget.parent == matchingTarget){
As for that first bit of code, remove it for now.  It is AS2 which will not work in an AS3 file, and the stuff inside the function is not legitimate code in any AS version.