var callendar = new CalendarPopup("div_callendar");
	callendar.setDisplayType("month");
	callendar.setReturnMonthFunction("monthReturn");
	callendar.showYearNavigation();
	//callendar.addDisabledDates("04/2010",null);
	function monthReturn(y,m) {
		document.forms[0].nachste_hu.value=m+"/"+y;
	}