Clever button menu

Hi all,

So, I’m building a flash site for my client. He wants the set of buttons to function just the same as this site (www.boffi.com).

To summarize, he wants it so that when one of the text buttons is clicked, a list of options pops down underneath it, thus pushing the other buttons below further down the page. Then, when another link is clicked, the list disappears and a new one appears under the last clicked button.

I’m no actions scripter, more a designer, so I’d really appreciate any help or advice you guys could throw.

My guess would be that I would create a movie clip for the ‘down state’ on each buttoon showing the desired movement of the list being unvelied. But how would I the effect of the ‘closing up’ part? I can’t get my head round it.

Sorry for my loose description but I don’t know how best to phrase it all.

Hope to hear from you, thanks in advance, Ian.