Volume control wheel - need help

programming flash
1

I’m making a volume control wheel, sort of like iPod. I’ve been working on it some hours now and everything seems perfectly logical in my code. However, it does not work in real life. I can’t figure out what I’m doing wrong. Can someone help me out?

here’s my code, and the fla is attached.


onClipEvent (mouseDown) {
    var current_vol = position_vol;
    var current_vol = getProperty(this.drag_layer, _rotation);
}
onClipEvent (mouseMove) {
    position_vol = getProperty(this.drag_layer, _rotation);
    var tmpPosition = Number(position_vol)+180;
    var tmpCurrent = Number(current_vol)+180;
    var Movement = tmpPosition-tmpCurrent;
    if (Movement>1) {
        Movement = -1;
    } else if (Movement<-1) {
        Movement = 1;
    }
    Movement = Movement/360;
    var vol = current_vol+Movement;
    position_vol = position_vol;
    if (vol<0) {
        vol = 0;
    }
    if (vol>100) {
        vol = 100;
    }
    thevolume = Math.round(vol);
    this._parent.volX.text = thevolume;
    _parent.mySound.setVolume(thevolume);
}



/*

//rotate back
onClipEvent (mouseUp) {
    pos = getProperty(this.drag_layer, _rotation);
    import mx.transitions.Tween;
    import mx.transitions.easing.*;
    var rotate_back:Tween = new Tween(this, "_rotation", Regular.easeOut, pos, 0, 10, false);
}

*/

cheers:gm: