MouseOut Event

While I await the delayed delivery of my flash mx & actionscript books can anyone please help me with the following…

I had originally, using a tutorial, made a sliding menu and with the kind help of “Cello” managed to make ammendments to the speed of the scroll but now I’m trying to make the button zoom in and out on mouseover and mouseout. I have managed the zoom effect but haven’t understood how to zoom back out on mouseout event.

On a single button got this to work by creating the mouseover event within the button itself and then created a zoomout movies clip on the scene and using actionscript called that event on the mouseout… if that makes sense.