[KidsKilla]

var my_snd= new Sound ();
my_snd.attachSound("fon");
my_snd.start();

first_btn = function(){
this._parent.onEnterFrame = function(){
if(my_snd.volume) my_snd.volume--
}
}
second_btn = function(){
this._parent.onEnterFrame = function(){
if(my_snd.volume<currVolume) my_snd.volume++
}
}