Buttons

Hi,

I have a little question for you guys.

I am working on a application for school.

See: http://www.paulmeelen.nl/rommel/mizuno

Now my question is when you press for example: man/women you see a rollover. but now i want when you press the button the word will stay black. (and ofcourse when you press a another button it will swich back to white)

How does that work or must it be done with AS?

I hope you know what i mean. :S

thx