Need help with rollover buttons.

[linuxllama22]

I have buttons, they look like this: http://img176.imageshack.us/my.php?image=asdfbp7.png

I have an image map already setup for them. It's setup with "poly" area shapes.
How do I use that in conjunction with JavaScript or something similar to turn them into rollover buttons?

[icu222much]

you can use the code from my site. it is sort of messy so beware. i'm not really too strong on JavaScript...

http://www.sfu.ca/~jca41/stuph/rysa/template.html
http://www.sfu.ca/~jca41/stuph/rysa/dropdowntabs.js