No mouse

Very simple quick query:

Doing flash interface project with only the 4 arrow keyboard keys and the “a” key as the activater! No mouse allowed!!

I have created movie clips which have a roll over affect created by an array but i now want to make these movie clips into button which can be selected using the arrow keys and the “a” button. Which then takes the user to the desired page!

Really dont want to change them from movie clips format does anyone know what would be a simple way of doing this:

Thanks people