Button color trouble

Hi all,

I would be very grateful if you could help me with this one:

I need to make my custom buttons change color on press or on release (for this part there is a tute right here on kirupa, I know :-)), but then change the color back to the original color when another button on the menu bar is pressed. How to solve this one? Through some sort of global variable, through if/ then and enable, or…?

Help!!! And thanks **a lot **in advance!!!