function calendar_jumpdate() {
	var month = document.forms.mod_calendar.calendar_month.options[document.forms.mod_calendar.calendar_month.selectedIndex].value;
	var year = document.forms.mod_calendar.calendar_year.options[document.forms.mod_calendar.calendar_year.selectedIndex].value;
	location.href = 'index.php?a=calendar&sm='+month+'&sy='+year+'&cd='+document.forms.mod_calendar.cd.value;
}

var curSubNav = 0;
function showSubNav(nr) {
	if (curSubNav > 0) {
		document.getElementById("subnav_"+curSubNav).style.display = "none";
	}
	if (nr > 0) {
		document.getElementById("subnav_"+nr).style.display = "block";
	}
	curSubNav = nr;
}

var droppeddown = false;
function dropdown_show() {
	if (!droppeddown) {
		document.getElementById('dropdown_contact').style.display = 'block';
		droppeddown = true;
	}
}
function dropdown_hide(e) {
	if (!e) { var e = window.event; }
	var reltg = (e.relatedTarget) ? e.relatedTarget : e.toElement;
	if (reltg.id.indexOf('dropdown_') < 0) {
		if (droppeddown) {
			document.getElementById('dropdown_contact').style.display = 'none';
			droppeddown = false;
		}
	}
}