Creating a button that will change when selected

hi all,

i’ve created “advanced” buttons as described in this tutorial:
http://www.kirupa.com/developer/mx2004/button_effect.htm

i have a few of these, and when clicked they bring up an external swf into my _root movie.

is there a way to make these buttons appear “clicked” once the external swf was loaded? and then “unclick” them once a different one is loaded?