3.0 menus and possibilities…?

I was wondering if there was any way to have the wordpress menus that we can setup in the options fold and/or unfold.

Would be nice and actually take less space. I have some menus I want to create but they would have 10-14 options, so it would take a lot of space on the sidebar.

Is there any way to modify the code to do this?

Example of what I’m talking about (not from a WP site though) on http://www.anhs.qc.ca/fusion, the menus on the left open up when you click on the little square.

Any help would be appreciated!