Magnifying menu

i need a little help in making a Magnifying menu i have text menu

i.e( about
gallery
stuff
blah
blah)

and i have this idea that when user scrolls on top on the button it will enlarge a little and at the same time it will enlarge other menu buttons. I don’t know how to explain it but it should look something like MAC X menu.something like that

I wonder if there is a way to do that.

Thanks for anyvhelp or suggestion.

this what you’re looking for?

http://www.flashkit.com/tutorials/Interactivity/Navigation/Mac_OS_X-Aaron_Ha-722/index.php