Basically, a random amount of movieclips have been attached to the stage using attachMovieClip().
so each one was assigned the instance name of “rock”+b
(b started out at 0 and was increased by one each time a new movie was created)
how do i remove one of these movieclips from the stage?
I tried this[“rock”+b].removeMovieClip()
but that didn’t work
PLEASE HELP! 
-Matt
