Probleme carroussel avec xml

<icons>

<icon image="carroussel/disque.png" tooltip="Jukebox" />

<icon image="carroussel/animation.png" tooltip="Animation" />

<icon image="carroussel/graphisme.png" tooltip="Graphisme" />

<icon image="carroussel/mail.png" tooltip="Contact" />

<icon image="carroussel/cadenas.png" tooltip="Votre projet"/>

<icon image="carroussel/tarif.png" tooltip="Tarifs"/>

</icons>

import mx.utils.Delegate;

var numOfItems:Number;
var radiusX:Number = 180;
var radiusY:Number = 75;
var centerX:Number = 900;
var centerY:Number = 150;
var speed:Number = 0.05;
var perspective:Number = 1;
var home:MovieClip = this;

var tooltip:MovieClip = this.attachMovie("tooltip","tooltip",10000);
tooltip._alpha = 0;

var xml:XML = new XML();
xml.ignoreWhite = true;

xml.onLoad = function()
{
	var nodes = this.firstChild.childNodes;
	numOfItems = nodes.length;
	for(var i=0;i<numOfItems;i++)
	{
		var t = home.attachMovie("item","item"+i,i+1);
		t.angle = i * ((Math.PI*2)/numOfItems);
		t.onEnterFrame = mover;
		t.toolText = nodes[i].attributes.tooltip;
		t.icon.inner.loadMovie(nodes[i].attributes.image);
		t.r.inner.loadMovie(nodes[i].attributes.image);
		t.icon.onRollOver = over;
		t.icon.onRollOut = out;
		t.icon.onRelease = released;
	}
}

function over()
{
	home.tooltip.tipText.text = this._parent.toolText;
	home.tooltip._x = this._parent._x;
	home.tooltip._y = this._parent._y - this._parent._height/2;
	home.tooltip.onEnterFrame = Delegate.create(this,moveTip);
	home.tooltip._alpha = 100;
}

function out()
{
	delete home.tooltip.onEnterFrame;
	home.tooltip._alpha = 0;
}

function released()
{
	var sou:Sound = new Sound();
	sou.attachSound("click");
	sou.start();
	trace(this._parent.toolText);
	rubrique = tipText.text;
	if ((nodes[i].attributes.image) = "Jukebox"){
		getURL("jukebox.html", "_blank");
}else if ((nodes[i].attributes.image) = "Animation"){
		getURL("Animation.html", "_blank");
}
}

function moveTip()
{
	home.tooltip._x = this._parent._x;
	home.tooltip._y = this._parent._y - this._parent._height/2;
}

xml.load("icons.xml");

function mover()
{
	this._x = Math.cos(this.angle) * radiusX + centerX;
	this._y = Math.sin(this.angle) * radiusY + centerY;
	var s = (this._y - perspective) /(centerY+radiusY-perspective);
	this._xscale = this._yscale = s*100;
	this.angle += this._parent.speed;
	this.swapDepths(Math.round(this._xscale) + 100);
}

this.onMouseMove = function()
{
	speed = (this._xmouse-centerX)/10000;
}

function released()
{
	var sou:Sound = new Sound();
	sou.attachSound("click");
	sou.start();
	trace(this._parent.toolText);
	rubrique = tipText.text;
	if (rubrique = "Jukebox"){
		getURL("jukebox.html", "_blank");
}else if (rubrique = "Animation"){
		getURL("animation.html", "_blank");
}
}