Q: Can I keep the Accordion Tree Menu V3 vertically aligned on my stage?

A: Yes you can. Below is the actionscrip that is doing the job.

var lis={}
lis.onDraw=function(){
    arrange()
}
lis.onChange=function(item){
    arrange()
}
acc.addEventListener("onChange",lis)
acc.addEventListener("onDraw",lis)
//function for arranging the accordion's position
function arrange(){
    var finV=Stage.height/2-acc.height/2
    moveMe(acc,finV,20)
}

function moveMe(a, param, t):Void {
    var tween = new mx.transitions.Tween(a, "prop", mx.transitions.easing.Strong.easeOut, a._y, param, t, false);
    //we make the tween onMotionChange so we cand round the tween's values for a smooth tween
    tween.onMotionChanged=function(){
        a._y=Math.round(tween.position)
    }
}






Files: verticalAlign.zip