comment jouer le removeChild ???

var chargement_1:Loader = new Loader();
addChild(chargement_1);
chargement_1.x = 25;
chargement_1.y = 120;

function clique_1(pEvt:MouseEvent):void
{
var Requette_1:URLRequest = new URLRequest("presentation.swf");
chargement_1.load(Requette_1);
}

function clique_2(pEvt:MouseEvent):void
{
var Requette_2:URLRequest = new URLRequest("deuxieme_anim.swf");
chargement_1.load(Requette_2);
}

chargement_1.unLoad();

var chargement_1:Loader = new Loader();
addChild(chargement_1);
chargement_1.x = 25;
chargement_1.y = 120;
bouton_1.addEventListener (MouseEvent.Click,charger1);
function charger1(evt:MouseEvent){
var Requette_1:URLRequest = new URLRequest("anim_1.swf");
chargement_1.load(Requette_1);
}
bouton_2.addEventListener (MouseEvent.Click,charger2);
function charger2(evt:MouseEvent){
var Requette_2:URLRequest = new URLRequest("anim_2.swf");
chargement_1.load(Requette_2);
}