Calling all carz

Since you dont check yer email that often, Elrick: What does the jazascript u have in this webpage do? I'm trying to figure it out between the book u lent me and messing around with HotMetal, but I'm still a little lost. Also, style-sheets are kinda throwing me for a batmantheride-loop - I think I understand the concept, but in THIS page you made "actionstyle" style sheet- what did you put in it? Sorry- maybe some of you gyros-of-teh-gnet can help- THANKS.

ADDED: In the process of answering my own questions, I came across this cool looking site called Code Punk where they've got a lot of tutorials on html stuff (including javascript coding) - so, I'll be checking it out, put please still help poor steverimsteve!