How to make mouse button mute sound?

The Apple mouse has a button on the top that I would like to use to Mute the sound. I can program a Logitech mouse to do it with Logitech drivers, but I don't know how hard it would be to get an Apple mouse to do it. I looked around for scripts/hacks... How could I make a mighty mouse Mute the system? I know there is a button on the keyboard if I could just tell the mouse button to mimic it.

Thanks...

Rosco