Guardate il with(movieClip) {ISTRUZIONI}...

codice:
function Galleria(path) {
	trace(path);
	//GALLERIA
	for (k=0; k<path[0]; k++) {
		this.createEmptyMovieClip("container"+k, this.getNextHighestDepth()-k);
		with ("container"+k) {
			_visible = false; //perkè qui invece di nascondermi le foto e basta mi nasconde tutto lo stage??
		}// se invece metto true funziona tutto...
		var mcLoader:MovieClipLoader = new MovieClipLoader();
		var listener:Object = new Object();
		listener.onLoadProgress = function(target:MovieClip, bytesLoaded:Number, bytesTotal:Number):Void  {
			trace(target+".onLoadProgress with "+bytesLoaded+" bytes of "+bytesTotal);
		};
		listener.onLoadInit = function(target:MovieClip):Void  {
			trace(target+".onLoadInit");
		};
		mcLoader.addListener(listener);
		mcLoader.loadClip(path[k+1], "container"+k);
	}
}
HELP Me!!