Button problems!

Hey i was wondering if anybody could help me… I am trying to create a menu system that when you click a button it tweens or is activated. But when you click another button on the menu, the previous button goes back to its original possition. Hope this makes sense. Thanks in advance for your help. I usually do this through a lot of tweening and if then statements. i was wondering if there are any smooth actionscript way of doing this. thanks…