// sprite containers for loaded content...
var top:Sprite = new Sprite();
var contento:Sprite = new Sprite();

// adding a listener that listens to buttonclicks from the loaded top-navigation...
addEventListener(MouseEvent.CLICK, topContentButtonListener);

// add them to the display list...
addChild(contento);
addChild(top);

// create loaders...
var topLoader:Loader = new Loader();
var contentLoader:Loader = new Loader();

// add COMPLETE-listener for when content has loaded...
contentLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, contentLoadCompleteListener);
topLoader.contentLoaderInfo.addEventListener(Event.COMPLETE, function() { top.addChild(topLoader.content); } );

// load initial stuff...
topLoader.load(new URLRequest("TopContent.swf"));
contentLoader.load(new URLRequest("Home.swf"));

// listen to COMPLETE-event from contentLoader...
function contentLoadCompleteListener(evt:Event):void {

	trace("content loaded:", evt.currentTarget.content);

	// clear content-sprite of old loaded stuff...
	while (contento.numChildren > 0) {
		contento.removeChild(contento.getChildAt(0));
	}

	// add loaded content to content-sprite...
	contento.addChild(evt.currentTarget.content);
}

// listener for Mouseclicks...
function topContentButtonListener(evt:Event) {
	trace(evt.target.name)

	var clickedItem:String = evt.target.name;

	if(clickedItem == "btnHome") {
		contentLoader.load(new URLRequest("Home.swf"));

	} else if(clickedItem == "btnGallery") {
		contentLoader.load(new URLRequest("Gallery.swf"));
	}

}