menu da orizzontale a verticale

[Stabiano]

salve ragazzi potete aiutarmi con questo codice


è un menu orizzontale io vorrei metterlo in verticale come posso fare?

import mx.transitions.Tween;
import mx.transitions.easing.*;

//create function to add buttons on stage
function addButtons() {
    pushOverX = 0;
    for (i=0; i<obj.buttons.length; i++) {
        btn = menu.attachMovie("button", "btn"+i, -i, {_x:pushOverX, id:i});
        btn.t.autoSize = "left";
        btn.t.text = obj.buttons[i].attributes.title;
        btn.t.textColor = 0xffffff;
        btn.back._width = btn.t._width;
        pushOverX += Math.round(btn._width+bS);
        setBtnEvents(btn);
    }
    selectFirstBtn();
    var cl:Color = new Color(menu.bar);
    cl.setRGB(tROC);
}

//create function for buttons events
function setBtnEvents(btn:MovieClip) {
    btn.onRollOver = function() {
        btn = this;
        st = obj.buttons[btn.id].attributes.title;
        //apply effect to this btn
        btn.t.textColor = tROC;
        typeText(btn.t,st,0,5);
        //stop current tween
        menu.bar.tweenX.stop();
        menu.bar.tweenWidth.stop();
        //tween bar
        menu.bar.tweenX = new Tween(menu.bar, "_x", Strong.easeOut, menu.bar._x, btn._x, .6, true);
        menu.bar.tweenWidth = new Tween(menu.bar, "_width", Strong.easeOut, menu.bar._width, btn.back._width, .6, true);
        //apply effect to pressed btn
        pressedBtn.t.textColor = 0xffffff;
        typeText(pressedBtn.t,obj.buttons[pressedBtn.id].attributes.title,0,1);
        //play sound
        s.start();
    };
    btn.onRollOut = function() {
        btn = this;
        st = obj.buttons[btn.id].attributes.title;
        //apply effect to this btn
        btn.t.textColor = 0xffffff;
        typeText(btn.t,st,0,1);
        //stop current tween
        menu.bar.tweenX.stop();
        menu.bar.tweenWidth.stop();
        //tween bar
        menu.bar.tweenX = new Tween(menu.bar, "_x", Strong.easeOut, menu.bar._x, pressedBtn._x, .6, true);
        menu.bar.tweenWidth = new Tween(menu.bar, "_width", Strong.easeOut, menu.bar._width, pressedBtn.back._width, .6, true);
        //apply effect to pressed btn
        pressedBtn.t.textColor = tROC;
        typeText(pressedBtn.t,obj.buttons[pressedBtn.id].attributes.title,0,5);
        //play sound
        s.start();
    };
    btn.onPress = function() {
        pressedBtn.enabled = true;
        pressedBtn = this;
        this.enabled = false;
        //ADD HERE CUSTOM FUNCTION
        st  = obj.buttons[pressedBtn.id].attributes.title + " button is pressed"; 
        demoFunction(st);
    };
}


function selectFirstBtn(){
    pressedBtn = menu.btn0;
    pressedBtn.enabled = false;
    //tween bar
    menu.bar.tweenX = new Tween(menu.bar, "_x", Strong.easeOut, menu.bar._x, pressedBtn._x, .6, true);
    menu.bar.tweenWidth = new Tween(menu.bar, "_width", Strong.easeOut, menu.bar._width, pressedBtn.back._width, .6, true);
    //apply effect to this btn
    pressedBtn.t.textColor = tROC;
    typeText(pressedBtn.t,obj.buttons[pressedBtn.id].attributes.title,0,5);
}

//create typing effect
function typeText(t:TextField, finalString:String, initRandomStringLength:Number, speed:Number) {
    var currentLength:Number = 0;
    var counter:Number = 0;
    t._parent.onEnterFrame = function() {
        if (currentLength<finalString.length) {
            counter++;
            var currentString:String = "";
            var randString:String = "";
            //get random char
            for (i=currentLength; i<initRandomStringLength; i++) {
                randString += String.fromCharCode(random(50)+20);
            }
            //add char to complete string
            for (i=0; i<=currentLength; i++) {
                currentString += finalString.charAt(i);
            }
            //if counter is equal to speed or the correct char is found add one unit to current length and set counter equal to 0  
            if (counter>=speed || randString.charAt(stL) == finalString.charAt(stL)) {
                currentLength++;
                counter = 0;
            }
            
            if (initRandomStringLength<finalString.length-1) {
                initRandomStringLength++;
            }
            t.text = currentString+randString;
        } else {
            delete t._parent.onEnterFrame;
        }
    };
}


//this function is for preview
function demoFunction(st:String){
    demoMC._alpha = 100;
    demoMC.t.text = st;
    demoMC.t.textColor = tROC;
    demoMC.tweenAlpha = new Tween(demoMC, "_alpha", Strong.easeIn, 100, 0, 1, true);
}



var tC:Number = new Number();//text color
var tROC:Number = new Number();//rollover text color
var bS:Number = new Number();//buttons spacing

var pressedBtn:MovieClip = new MovieClip();


//object that contains data from xml
var obj:Object = new Object();

//create nex xml object
var xml:XML = new XML();
xml.ignoreWhite = true;



//after the xml is loaded, load variables and parse the date to obj
xml.onLoad = function(succes) {
    if (succes) {
        tC = Number(this.firstChild.attributes.textColor);
        tROC = Number(this.firstChild.attributes.rolloverColor);
        bS = Number(this.firstChild.attributes.spacing);
        obj.buttons = this.firstChild.childNodes;

        //function call
        addButtons();
    } else {
        trace("xml could not load");
    }
};

//the path to the xml file
xml.load("menu.xml");