naming duplicate objects

[barryb at libero.it]

Hello all!
I have a short handler in an image object  which does something if 
it 
intersects two graphics, called "circle1" and "circle2", overlaying each 

other - it should not do anything if only one graphic is present. 

To my 
stupefaction it works BUT only with the two original grcs, 
nothing happens if 
the grcs are copies, clones or duplicates of the 
originals carrying the same 
name. 
As I need to have several of these 'triggers' on the same card, how 
should I name or call them correctly?
Yes, it's a game and the script, [code,
talk] in the images looks something like this.

on mouseDown
  grab me
end 
mouseDown

on mouseUp 
    if intersect (me,grc "circle1") then
            if 
intersect (me,grc "circle2") then                    
            DoMyTrick  

         end if
      end if
end mouseUp

TIA  Barry Barber