Menu Actions?

I’m trying to build something similar to this:
http://www.iomega.com/na/landing.jsp

But I’m having trouble with the rollover actions…

basically, when I hover over one item, I need it to stay up even when I rollout of that button.

Then when I hover over another button, I need the opened button to close.

Is there a script I can use that will do something similar to that?

something like “when I rollover another button, gotoAndPlay(“out”);” ?

I’m sorry if this is vague. I’m self taught, and admittedly not as good at the scripts as I would like.

Thanks in advance!