Scripted Fade In / Out

onSelfEvent (load) {
    /*
    simple scripted fade in / out script
    by Craig Lowe
    www.loweonline.co.uk
    www.swish-designs.co.uk
    */
    fading=true; // fade out on start false
    alpha=100; // makes object opaque
    fadeSpeed=3; // how quick the fade is
}
onSelfEvent (enterFrame) {
    this.onRollOver = function(){
    fading=false; 
    }
    this.onRollOut = function(){
    fading=true; 
    }
    if(fading && alpha>0){
        alpha-=fadeSpeed;
        this._alpha=alpha;
    }
    if(!fading && alpha<100){
        alpha+=fadeSpeed;
        this._alpha=alpha;
    }
}