"Verify Avatar is in use" hack. SO EASY!!!

[Velocd]

This would be extremely helpful, if anybody could code out.

This basically should show a little verify button in the avatar selection screen, where if you select an avatar and hit the avatar verify button, it will pop up a window telling you if the avatar is in use or not.

Easy right? Its like the verify user accepts private messages hack, but just for avatars! Please somebody do this

edit!!
Also, could you make it if the user still chooses an avatar that is being used, and hits submit it will give them an error message and redirect them back! thanks, if not asking for too much