function openAnfahrtsskizze (url,breite,hoehe) {
	var links = (screen.width/2)-(breite/2);
	var oben = (screen.height/2)-(hoehe/2);
	thewin = window.open(url,"anfahrtsskizze","height="+hoehe+",width="+breite+",status = no,toolbar = no,menubar = no,location = no,resizable = no,titlebar = no,scrollbars = no,fullscreen = no,top ="+oben+",left ="+links);
	thewin.focus();
}