BEI KLICK:
var event:NavigationEvent = new NavigationEvent(NavigationEvent.OPEN_SIGHT);
event.sight = NavigationEvent.BIG_BEN;
dispatchEvent(event);



var sightLoader:Loader;
addEventListener(NavigationEvent.OPEN_SIGHT, openSight);
addEventListener(NavigationEvent.CLOSE_SIGHT, closeSight);

function openSight(evt:NavigationEvent):void{
	var request:URLRequest;
	switch(evt.sight){
		case NavigationEvent.TOWER_BRIDGE:
			request = new URLRequest("landkarte.swf");
			break;
		case NavigationEvent.LONDON_EYE: break;
		case NavigationEvent.BIG_BEN: break;
		case NavigationEvent.SPEAKERS_CORNER: break;
		case NavigationEvent.WESTMINSTER_ABBEY: break;
		default : break;
	}
	sightLoader = new Loader()
	sightLoader.load(request);
	addChild(sightLoader);
}

function closeSight(evt:NavigationEvent):void{
	sightLoader.unloadAndStop();
	removeChild(sightLoader);
}