I'm not sure how to explain this but... How do I make a menu like on the page I have posted below? I don't want to hover on the menu button and have it pop down; I just want to have buttons when you hover on them and 'subbuttons' pop up. If you know how to do this please help.

Click Here (http://www.petzfriends.com)
(Enter into the site first to find the menu I want to make).