Want a button which looks like it is always in the pushed state

[Antony Stace <antony claire co jp>]

Hi Folks

I want to have a button that always looks like it has been pushed.  Is
there anyway I can do this?
All I want is that my button looks like the default button when  the
mouse is over the button or when someone clicks the button.

Any help appriciated.

Cheers

Tony