function PopUp()
 {
	var URL = "impressum.php";
	var Name = "popup";
	var Fensteroptionen = "toolbar=1,scrollbars=0,location=0,statusbar=1,menubar=1,resizable=1";
	var Breite = "435";
	var Hoehe = "670";
	window.open(URL, 'Name', Fensteroptionen + ',width=' + Breite + ',height=' + Hoehe);
 }