this.createEmptyMovieClip("viereck", 1);
with (viereck) {
	beginFill(0x000000, 100);
	lineStyle();
	lineTo(100, 0);
	lineTo(100, 100);
	lineTo(0, 100);
	endFill();
	_alpha = 0;
	onEnterFrame = function () {
		trace("alpha++ ausfuehren");
		_alpha += 10;
		if (_alpha>=100) {
			delete this.onEnterFrame;
		}
		myInt = setInterval(function () {
			onEnterFrame = function () {
				trace("alpha-- ausfuehren");
				_alpha -= 10;
				if (_alpha<1) {
					delete this.onEnterFrame;
					clearInterval(myInt);
				}
			};
		}, 5000);
	};
}