function open_mandantenbereich()

{

	url = 'http://15524994749.cm4allbusiness.de ';

	title = 'Mandantenbereich';

	weite = 800;

	hoehe = 500;

	links = (screen.width-weite)/2;

	oben = (screen.height-hoehe-100)/2;

	fenster = window.open(url, title, 'left=' + links + ',top=' + oben + ',width=' + weite + ',height=' + hoehe + ',resizable,scrollbars');

}