Help with my swishmax site

I'm trying to develop a swishmax site, but am trying to learn swish as I develop.

I have created a sprite that contains buttons. When the user clicks on a button, I want that button to move to the left, and grow by 15%. Then when the user clicks a different button, I want the button that is out, to shrink by the 15%, and move right. The button that was recently clicked will then go out to the left and grow by 15%.

What is the easiest way to do this? I thought that I could use if(FrameLoaded), but then I came to realize this is only to test if a frame has been downloaded onto the users computer.

Is there a way to determine if an action has just been played? Or determine if a frameLabel has just been played.

I have attached my swish to try and show what I'm talking about.