Movie cilp buttons

I am making a movie clip that acts a button. I am pretty much using the good old
on{rollover} gotoandStop(2) (i know this isn’t the right format but you guys get the idea.

Well is there any way i can make it so my onRollOver effect finishes before my onRollOut effect occurs (like if a ball bounces when I roll over it, can I make it so it finishes bouncing even though i rolloff before the animation ends, and then triggers the onRollOut effect?)

Thanks for any suggestions.

Mike