function neu(menue){
	if(document.getElementById){
		zeigen = menue+"2";
		verstecken = menue+"1";
		zeig = document.getElementById(zeigen);
		versteck = document.getElementById(verstecken);
	}
	zeig.style.visibility = "visible";
	versteck.style.visibility = "hidden";
}
function alt(menue){
	if(document.getElementById){
		zeigen = menue+"1";
		verstecken = menue+"2";
		zeig = document.getElementById(zeigen);
		versteck = document.getElementById(verstecken);
	}
	zeig.style.visibility = "visible";
	versteck.style.visibility = "hidden";
}

function popup(bildname){
	url = "bilderpopup.html?"+bildname;
	popup = window.open(url, "popup", "width=440, height=400, left=50, top=50, location=no, scrollbars=no, menubar=no, resizable=no, status=no, toolbar=no");
	self.location.reload();
}

function slpopup(url){
	fenster = window.open(url, name, "width=570, height=250, left=180, top=182, location=no, scrollbars=no, menubar=no");
}

function stopErrors(){
	return true;
}
window.onerror = stopErrors;

function callback(){
	fenster = window.open("callback.html","Fenster","width=220, height=250, left=612, top=226, location=no, scrollbars=no, menubar=no");
}
zuletzt = "";
function zeige(ebene){
	if(zuletzt != ""){
		verstecke(zuletzt);
		clearTimeout(ursprung);
	}
	if (document.getElementById){
		document.getElementById(ebene).style.visibility='visible';
	} else if (document.layers){
		div = layerByName(ebene);
		div.visibility = 'show';
	}
	zuletzt = ebene;
}

function verstecke(ebene){
	if (document.getElementById){
		document.getElementById(ebene).style.visibility='hidden';
	} else if (document.layers){
		div = layerByName(ebene);
		div.visibility = 'hide';
	}
}

function zeitaus(ebene){
	folie = ebene;
	ursprung = setTimeout('verstecke(folie)', 15000);
}

function zeitausaus(ebene){
	folie = ebene;
	clearTimeout(ursprung);
}

function callback(){
	fenster = window.open("callback.html","Fenster","width=220, height=250, left=612, top=226, location=no, scrollbars=no, menubar=no");
}