Swapping depths problemo

Hi again everyone :slight_smile:
I’ve got a question about depths. Im building a gallery that contains thumbnails (like the thread that happened a week or so ago). Each thumbnail is dragged and dropped somewhere to load something else. But, all of the thumbnails are going underneath the other thumbnails when dragged. What do i need to add to my movieclip thumbnails to have each one getFocus :puzzled: from the others when dragged?

I hope i explained well enough! Thanks in advance