Is it possible to remove a function

Hi All,

I have another issue that I’ve been searching and searching for but can’t seem to figure it out. If i have a function:

my_mc.addEventListener(e:MouseEvent.ROLL_OVER, audioOver)

function audioOver(e:MouseEvent) {
     //a bunch of other things are going in here, not just the changeAudio(); function


That is called when a user initially rolls over a certain movieclip. After it happens that first time, I don’t want it to happen again so I’d like to remove that changeAudio(); function some how. Is anyone familiar with how to do that?