diaporama loadmovie : SetInterval qui ne se vide pas

var monClip:MovieClip = this.createEmptyMovieClip("conteneur", 0);//clip conteneur
monClip._x = 28;
monClip._y = -40;
monClip._xscale = 94;
monClip._yscale = 102;
var mct:MovieClipLoader = new MovieClipLoader();//gestionnaire du chargement

var liste:Object = new Object();

liste.onLoadProgress = function(target:MovieClip, loaded:Number, total:Number):Void  {
	var total = target.getBytesTotal();
	var loaded = target.getBytesLoaded();
	part_load = Math.round((loaded/total)*100);
	display = part_load+"%";
	bar._xscale = part_load;
};
liste.onLoadComplete = function(target:MovieClip):Void  {
	display = "";
	bar._visible = false;
	contour_bar._visible = false;
};

mct.addListener(liste);
mct.loadClip("./diapo.swf",monClip);//chargement de monswf.swf dans monClip

stop();

this._lockroot=true
//Création des variables
var images:Array = new Array();
var param:Array = new Array();
var imageActu:Number;
var imageNext:Number;
var annee:Date = new Date();
//Viariables des intervals
var interAlpha:Number;
var interImage:Number;
var interTest:Number;
//Temps de pause par défaut
var timeStart:Number = 200;
var timeBetween:Number = 100;
//Variable pour la transition alpha
var val_alpha:Number = 0;
//Création des flags
var image1:Boolean = false;
var image2:Boolean = false;
var init:Boolean = true;

//MovieClip Conteneur1
var conteneur1:MovieClip = this.createEmptyMovieClip("conteneur1", 2);
var mclListener1:Object = new Object();
var mcl1:MovieClipLoader = new MovieClipLoader();
mcl1.addListener(mclListener1);

//MovieClip Conteneur2
var conteneur2:MovieClip = this.createEmptyMovieClip("conteneur2", 1);
var mclListener2:Object = new Object();
var mcl2:MovieClipLoader = new MovieClipLoader();
mcl2.addListener(mclListener2);

//Création d'un nouveau menu contextuel
var rootMenu = new ContextMenu();
rootMenu.hideBuiltInItems();
var rootMenuItem = new ContextMenuItem("© "+annee.getFullYear()+" Arobase Services", email);
rootMenu.customItems.push(rootMenuItem);
_root.menu = rootMenu;

function email() {
	//getURL("@", "_self");
}


//Chargement du fichier XML contenant la liste des photos
var diapo:XML = new XML();
diapo.ignoreWhite = true;
diapo.load("diapo.xml");
//Traitement une fois le chargement effectuer
diapo.onLoad = function(success:Boolean) {
	if(success){
		//Creation des noeud
		var noeudImage:XMLNode = this.firstChild.childNodes[0];
		var noeudParam:XMLNode = this.firstChild.childNodes[1];
		for (var i:Number = 0; i<noeudImage.childNodes.length; i++){
			var temp:Object = new Object();
			temp.titre = noeudImage.childNodes[i].attributes.titre;
			temp.comm = noeudImage.childNodes[i].attributes.comm;
			temp.xTxt = noeudImage.childNodes[i].attributes.xTxt;
			temp.yTxt = noeudImage.childNodes[i].attributes.yTxt;
			images.push(temp);
		}
		for (var i:Number = 0; i<noeudParam.childNodes.length; i++){
			var temp:Object = new Object();
			temp.valeur = noeudParam.childNodes[i].attributes.valeur;
			temp.comm = noeudParam.childNodes[i].attributes.comm;
			param.push(temp);
		}
		imageInit();
	}
}

imageInit = function(){
	if((param[0].valeur == "true")|(param[0].valeur == undefined)){
		imageActu = randomNum(0, images.length-1);
		imageNext = randomNum(0, images.length-1);
		imageRandom();
	}else{
		imageActu = 0;
		imageNormal();
	}
	if(param[1].valeur != undefined){timeStart = param[1].valeur;}
	if(param[2].valeur != undefined){timeBetween = param[2].valeur;}
	mcl1.loadClip(images[imageActu].titre, conteneur1);
	mcl2.loadClip(images[imageNext].titre, conteneur2);
}

mclListener1.onLoadComplete = function(target:MovieClip):Void {
	image1 = true;
	if(init){
		if(image2){
		init = false;
		interImage = setInterval(_root,"imageSwap",timeStart);
		}
	}else{
		conteneur2.swapDepths(conteneur1);
		mcl2.loadClip(images[imageNext].titre, conteneur2);
	}
}

mclListener2.onLoadComplete = function(target:MovieClip):Void {
	image2 = true;
	if(init){
		if(image1){
		init = false;
		interImage = setInterval(_root,"imageSwap",timeStart);
		}
	}else{
		interImage = setInterval(_root,"imageSwap",timeBetween);
	}
}

imageSwap = function(){
	clearInterval(interImage);	
	interAlpha = setInterval(this,"imageAlpha",6);
}

imageAlpha = function(){
	if(val_alpha < 100){
		conteneur1._alpha = (100-val_alpha);
		conteneur2._alpha = val_alpha;
		val_alpha += 1;
	}
	else{
		clearInterval(interAlpha);
		val_alpha = 0;
		imageActu = imageNext;
		if(param[0].valeur == "true"){
			imageRandom();
		}else{
			imageNormal();
		}
		conteneur1.swapDepths(conteneur2);
		conteneur1._alpha = 100;
		mcl1.loadClip(images[imageActu].titre, conteneur1);
	}
}

imageRandom = function(){
	while(imageActu == imageNext){
		imageNext = randomNum(0, images.length-1);
	}
}

imageNormal = function(){
	if(imageActu == images.length-1){
		imageNext = 0;
	}else{
		imageNext = imageActu+1;
	}
}

randomNum = function(min:Number, max:Number):Number{
	var num:Number = Math.floor(Math.random() * (max - min + 1)) + min;
	return num;
}