How can I do this? Slide up box?

JavaScript
1

I would like to create a slide up box similar to this site:

When you click Joomla templates the box slides up. I am okay with the frames
that they created I was able to do that, but I can’t figure out how to create a slide up box similar to this.

2

http://api.jquery.com/slideUp/

http://wiki.github.com/madrobby/scriptaculous/effect-slideup

This particular site is using mootools Fx:

http://mootools.net/docs/core/Fx/Fx