Flash Volume Controler ActionScript 2

//Set Variables
var mySnd        :Sound;
var levelSpeed    :Number;
var musicOn        :Boolean;

//SetUp Items

mySnd = new Sound();
mySnd.attachSound("soundLoop");
levelSpeed = 5;
volLevel_txt.text = 100;
volSpeed_txt.text = levelSpeed;
musicOn = false;

//Buttons
volumeOn_mc.onRelease     = Delegate.create ( this, volOn);
volumeOff_mc.onRelease     = Delegate.create ( this, volOff);
control_mc.onRelease     = Delegate.create ( this, controls);

//Functioins  ** DANGER
function volOn() : Void {

var volLev = getVolume();

onEnterFrame = function() {

var volLev = getVolume();
var levelSpeed = getSpeed();

if (volLev < 100 ) {

setVolume( volLev + levelSpeed);
}else{

setVolume(100);
delete onEnterFrame;
trace("sound on");
}
}

};

function volOff() : Void {

onEnterFrame = function() {

var volLev = getVolume();
var levelSpeed = getSpeed();

if (volLev > 0 ) {

setVolume( volLev - levelSpeed);
}else{

setVolume(0);
delete onEnterFrame;
trace("sound off");
}
}
};

function getSpeed():Number {
return (volSpeed_txt.text > 100 ? (100,setSpeed(100)) : Number(volSpeed_txt.text) );
}

function setSpeed(val) {
volSpeed_txt.text = val

}
function getVolume():Number {

return mySnd.getVolume();
}

function setVolume(val) :Void {

mySnd.setVolume(val);
volLevel_txt.text = val;
}

function controls() {

if (musicOn == false) {
control_mc.gotoAndStop("on");
mySnd.start(0,999);
musicOn = true;
}else {
control_mc.gotoAndStop("off");
mySnd.stop();
musicOn = false;
}
}