Any Hacks that allow people to "minimize/close down" Forum subsections?

[Mithan]

My forum is located here:
http://dynamic5.gamespy.com/~ac2hq/forum/

My question is this:

-I have 5 main Forum listings, each with a bunch of forums inside.

-Is it possible, via Cookies to offer some kind of expand/contracted view so people can just expand what forum listings they want, and close the rest down?



So for my site, if you came here and only wanted to see the "AC2HQ General Forums" by default, but not the other forums, is there a way to minimize the rest, so only the names of the actualy listing shows, but not the individual forums underneath?

This would basically be equivalent to people setting a "Depth of Forums" option for each main forum listing/forum parent.