Frustrating problem with tween class!

programming flash
1

Can anyone point me in the direction as to why this isn’t working?

changeWidth (quiz_holder, _width + 200, mx.transitions.easing.Strong.easeInOut);

function changeWidth(movName, moveTo, moveType){
    var time = 50;
    var sceney = movName._width;
    var endsceney = moveTo;
    new mx.transitions.Tween(movName, "_width", moveType, sceney, endsceney , time);
    changeWidth.onMotionFinished = function (){
        trace ("worked");
        changeHeight(quiz_holder, _height + 200, mx.transitions.easing.Strong.easeInOut);
    };
}

function changeHeight(movName, moveTo, moveType){
    var time = 50;
    var sceney = movName._height;
    var endsceney = moveTo;
    new mx.transitions.Tween(movName, "_height", moveType, sceney, endsceney , time);
}

What I want to happen is that the quiz_holder box expands sideways, then when this is finished, it expands lengthways. At the moment it’s just getting to the point where it’s expanded sideways and then stops? Any ideas?

Thanks
Tom