function btvjahr() {
	var datum = new Date();
	var jahr = datum.getFullYear();
	document.write(jahr);
}

function openPrintWindow(url)
{
	newwin = window.open(url,'Drucken','menubar,status,scrollbars,resizable,width=700,height=500');
}

function changeOption(URL)
{
	location.href = URL;
}

var menuopen = "";
var aktivmenu = "";
var aktiv = "";

function aufklappen(ebene) {
	window.clearTimeout(aktiv);
	if (menuopen != "") zuklappen(menuopen);
	menuopen = ebene;
	if (document.getElementById(ebene)) {
		document.getElementById(ebene+"li").className="navi1sel";
    	document.getElementById(ebene+"link").className="navi1sel";
		document.getElementById(ebene).style.visibility = "visible";
	}
}

function checkMenu(ebene) {
	aktiv = window.setTimeout("zuklappen('"+ebene+"')",1000);
}

function zuklappen(ebene) {
	if (document.getElementById(ebene)) {
		document.getElementById(ebene).style.visibility = "hidden";
		if (ebene != aktivmenu) document.getElementById(ebene+"li").className="navi1";
		if (ebene != aktivmenu) document.getElementById(ebene+"link").className="navi1";
	}
}