function FensterOeffnen (Adresse) {
		var screenwidth = screen.width;
		var screenheight = screen.height;
		var windowwidth = 700;
		var windowheight = 500;
		var horpos = (screenwidth - windowwidth) / 2;
		var vertpos = (screenheight - windowheight) / 2;
		MeinFenster = window.open(Adresse, "ARACHON", "width=" + windowwidth + ", height=" + windowheight + ", left=" + horpos + ", top=" + vertpos);
		MeinFenster.focus();
};