Load/Unload

var conteudo:MovieClip = new MovieClip();
conteudo.x = 15;
conteudo.y = 15;
addChild(conteudo);

var _loader:Loader;
function setupLoader():void {
	_loader = new Loader();
	_loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, loadProgress);
	_loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loadComplete);
	conteudo.addChild(_loader);
}

function loadProgress(event:ProgressEvent):void {
	var percentLoaded:Number = event.bytesLoaded/event.bytesTotal;
	percentLoaded = Math.round(percentLoaded * 100);
	trace("Loading: "+percentLoaded+"%");
}

function loadComplete(event:Event):void {
	trace("Complete");
}

function novoConteudo(target) {
	//animacao saida
	abrirConteudo(target);
}

function abrirConteudo(file:String):void {
	_loader.load(new URLRequest(file));
}

setupLoader();

abrirConteudo('home.swf');

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o que acontece, as coisas do home, continuam carregadas, oq eu queria fazer era algo tipo:

function novoConteudo(target) {
	//animacao saida
	conteudo.unloadMovie(); // AS2 bizarro..
	abrirConteudo(target);
}