Buttons Using ActionScript <--Newbie

Hi Guys,

Bit of a noob on the ActionScript front, trying to self learn it and being a bit slow this is taking some time. What I’m wanting to do for my web site is do a animation on a button so that when the mouse cursor is over it a drop down list animation starts revealing more buttons. How would I go about doing this using Action script in the noobiest terms possible?

Cheers .