CLONE movie clip when dragging and dropping

hi

i’ve built a little game, where the user can drag and drop objects on a canvas. there’s a button wheren the canvas turns black, and the objetcs (images) become white, like a photographic image.

What I’m trying to do without sucess until now, it to make the draggable objects infinit, so the user can drag as many objects as he can.

if some one could take a look at the fla and help me out with this would be very greatful since i’m trying for days to make this work.

click here to download the fla

thanks in advance.