Dropdown "FAQ" thingy

Hi guys.

I am making a site using WordPress, and you gotta love it!
Anyways, i need to make a FAQ thingy page. Well it will actually work as a sort of a dictionary. I then need a plugin that can make me something like this: http://www.facebook.com/help/?page=204630599572703

So if you click on a question, the awnser drops down.
I would be using it like, so if you click on a surtain word in the dictionary, the description drops down.

Do you get it? 🙂