Array trouble (i think) - help!

I have 5 buttons; button1, buttin2, button3, button4, and button5. All are movieclips are they have animations to them. What I want to do is have them reset to their original state whenever another is clicked.

For example, they all start of with a colour of CCCCCC. When you roll over button1, it turns a different colour and stays that colour when you click on it. When you then click on button2 or any of the others, I want button1 to return to CCCCCC. This same method is to be applied to all the buttons. From what I’ve read it’s something to do with “associative array syntax” but I’m not too sure.

Can anyone help? I’m a bit of a newbie to coding!