button fades AS3

import fl.transitions.Tween;
import fl.transitions.easing.*;
// Dont duplicate the things above


// Start value for the button. buttonOne is the instance name of the button. Alpha is between 0 and 1 so 50% is 0.5
buttonOne.alpha = 0;
buttonOne.addEventListener(MouseEvent.MOUSE_OVER, fadingInButtonOne);
buttonOne.addEventListener(MouseEvent.MOUSE_OUT, fadingOutButtonOne);

//buttonTwo.alpha = 0;
//buttonTwo.addEventListener(MouseEvent.MOUSE_OVER, fadingInButtonOne);
//buttonTwo.addEventListener(MouseEvent.MOUSE_OUT, fadingOutButtonOne);


//Read about the Tween class here if you want. There is alot that can be changed to the fade
// http://www.republicofcode.com/tutorials/flash/as3tweenclass/


function fadingInButtonOne(event: MouseEvent): void {
    var myTween = new Tween(buttonOne, "alpha", Regular.easeIn, 0, 1, 15, false);
    stop();
}
function fadingOutButtonOne(event: MouseEvent): void {
     var myTween = new Tween(buttonOne, "alpha", Regular.easeIn, 1, 0, 15, false);
}

//function fadingInButtonOne(event: MouseEvent): void {
//  var myTween = new Tween(buttonOne, "alpha", Regular.easeIn, 0, 1, 15, false);
//  stop();
//}
//function fadingOutButtonOne(event: MouseEvent): void {
//   var myTween = new Tween(buttonOne, "alpha", Regular.easeIn, 1, 0, 15, false);
//}