Actionscript 1 to 2 button reverse

Question

Hey guys, i found some nice code on AS1 to use with my Button and MC.
Basically
the MC doesnt play when mouse is not on button
when mouse over button i want the MC to play. (only once then stop)
when mouse off button i want the MC to play in reverse. (and stop when its back to the beginning)
(btw both the MC and Button are in a movie clip - as i need to make many of them)
the code is in AS1 and doesnt seem to work in AS2 which is where i need it.
Maybe someone can see whats wrong and convert parts for me or give me a new code
code for button:
on (rollOver) {
mc1.goBack = false;
mc1.play();
on (rollOut) {
mc1.goBack = true;
code for MC:
onClipEvent (enterFrame) {
    this.rewind();
code for actions layer:
MovieClip.prototype.rewind = function () {
if (goBack && (_currentframe>1)) {
gotoAndStop (_currentframe-1);
thanks i really need this code!!!! appriecate any1s help =)

Answer 1

remove code from your button and assign your button an instance name, say btn:
btn.onRollOver=function(){
mc1.onEnterFrame=function(){
this.nextFrame();
if(this._currentframe==this._totalframes){
delete this.onEnterFrame;
btn.onRollOut=function(){
mc1.onEnterFrame=function(){
this.prevFrame();
if(this._currentframe==1){
delete this.onEnterFrame;