try this (actionscript 2):
var Bt:Array = [_root.clip.starters.btn1, _root.clip.starters.btn2, _root.clip.starters.btn3];
for(i=0; i<Bt.length; i++){
Bt[i].iv = i;
Bt[i].onRollOver = function(){
for( i=0; i<Bt.length; i++ ){ Bt[i]._visible = false; }
Bt[this.iv]._visible = true;
};
Bt[i].onRollOut = function(){
for( i=0; i<Bt.length; i++ ){ Bt[i]._visible = true; }
};
};
animated:
import mx.transitions.Tween;
import mx.transitions.easing.*;
var Bt:Array = [_root.clip.starters.btn1, _root.clip.starters.btn2, _root.clip.starters.btn3];
for(i=0;i<Bt.length;i++){
Bt[i].iv = i;
Bt[i].onRollOver=function(){
for(i=0;i<Bt.length;i++){
if(i != this.iv){
new Tween(Bt[i], "_alpha", Strong.easeOut, 100, 0, 15, false);
new Tween(Bt[i], "_x", Back.easeOut, Bt[i]._x, (Bt[i]._x-10), 1, true);
}
}
};
Bt[i].onRollOut=function(){
for(i=0;i<Bt.length;i++){
if(Bt[i]._alpha ==0){
new Tween(Bt[i], "_alpha", Strong.easeOut, 0, 100, 15, false);
new Tween(Bt[i], "_x", Back.easeOut, Bt[i]._x, (Bt[i]._x+10), 1, true);
}
}
};
};