[Action Script 2.0] Réaliser un fondu enchainé

var page1:MovieClip = new Page1();
addChild(Page1);
page1.alpha = 0;

var tween:Tween = new Tween ( page1, "alpha", Elastic.easeOut, 100, 0, 2, true );
var tween:Tween = new Tween ( page2, "alpha", Elastic.easeOut, 0, 100, 2, true );

button_page1.onRelease = function() { gotoAndStop("page1"); }
button_page2.onRelease = function() { gotoAndStop("page2"); }
button_page3.onRelease = function() { gotoAndStop("page3"); }
button_page4.onRelease = function() { gotoAndStop("page4"); }

stop();

monBouton.addEventListener(MouseEvent.CLICK, clicHandler)
function clicHandler(event:MouseEvent)
{
    trace(ok);
}

/*import des classes nécessaires*/
import fl.transitions.Tween;
import fl.transitions.TweenEvent;
import fl.transitions.easing.*;

/*définition des paramètres*/
var array_menu:Array = new Array();
array_menu["btnMenu1"]=["ma jolie page 1", "Page1"];
array_menu["btnMenu2"]=["ma jolie page 2", "Page2"];
array_menu["btnMenu3"]=["ma jolie page 3", "Page3"];
array_menu["btnMenu4"]=["ma jolie page 4", "Page4"];
array_menu["btnMenu5"]=["ma jolie page 5", "Page5"];
var length_menu:int = 5;
var conteneur:MovieClip = new MovieClip();

/*ajout des éléments sur la scène*/
addChild(conteneur);

/*définition des écouteurs*/
for (var i:int=1; i<=length_menu; i++)
{
	this["btnMenu"+i].addEventListener(MouseEvent.CLICK, clickHandler);
	this["btnMenu"+i].texte.text = array_menu["btnMenu"+i][0];
	this["btnMenu"+i].texte.mouseEnabled = false;
}

/*définition des fonctions*/
function clickHandler(event:MouseEvent):void
{
	while(conteneur.numChildren>0)
	{
		conteneur.removeChildAt(0);
	}
	var class_page:Class = getDefinitionByName(array_menu[event.target.parent.name][1]) as Class;
	var page:MovieClip = new class_page();
	conteneur.addChild(page);
	var tween_page:Tween = new Tween(conteneur, "alpha", Strong.easeIn, 0, 100, 1, true);
}

var monImage:Sprite = new MonImage();
monImage.x = 140; //défini la position en abscisse
monImage.y = 78; //défini la position en ordonnée
monImage.alpha = 75; //définie la transparence, pour le fun  :p
addChild(monImage);

page.x=345;
page.y=163;