var isNav4 = false; var isIE = false; var isW3C = false;
if (navigator.appName.indexOf("Netscape") != -1) {
	if (parseInt(navigator.appVersion) == 4) { isNav4 = true;}
	else if (parseInt(navigator.appVersion) >= 5) { isW3C = true;}
	}
else { 
	if ((parseInt(navigator.appVersion) >= 4) && (navigator.appName.indexOf("Microsoft") != -1)) { isIE = true;}
	if (navigator.userAgent.indexOf("Opera 5") != -1) { isIE = true;}
	}

var old = "m0";
function zE(ebene_name,event){
	hi(eval('old'));
	sh(eval('ebene_name'),event);
	old = ebene_name; 
	}

function sh(name,event) {
	if (isNav4)	{ document.layers[''+name].visibility = "show"; }
	if (isW3C)	{ document.getElementById(''+name).style.visibility = "visible"; }
	if (isIE)	{ document.all[''+name].style.visibility = "visible"; }
	}

function hi(name) {
	if (isNav4)	{ document.layers[''+name].visibility = "hide"; }
	if (isW3C)	{ document.getElementById(''+name).style.visibility = "hidden"; }
	if (isIE)	{ document.all[''+name].style.visibility = "hidden"; }
	}
		
function zErel(ebene_name,event){
	hi(eval('old'));
	shrel(eval('ebene_name'),event);
	old = ebene_name; 
	//alert ( 'y='+ document.all['Shopleft'].scrollTop);
	}

function shrel(name,event) {
	if (isNav4)	{ doc = document.layers[''+name]; doc.visibility = "show"; doc.left = event.pageX -290; doc.bottom = 410 - event.pageY;}
	if (isW3C)	{ doc = document.getElementById(''+name).style; doc.visibility = "visible"; doc.left = event.clientX -290; doc.bottom = 410 - event.clientY;}
	if (isIE)	{ doc = document.all[''+name].style; doc.visibility = "visible"; doc.left = window.event.x -290; doc.bottom = 410 - window.event.y;}
	}

function showMerker() {
	//alert ( ''+top.Seite.Navigation.length);
	if (isNav4)	{ top.Seite.Navigation.document.layers['Merkliste'].visibility = "show"; }
	if (isW3C)	{ top.Seite.Navigation.document.getElementById('Merkliste').style.visibility = "visible"; }
	if (isIE)	{ top.Seite.Navigation.document.all['Merkliste'].style.visibility = "visible"; }
	}

function hideMerker() {
	if (isNav4)	{ top.Seite.Navigation.document.layers['Merkliste'].visibility = "hide"; }
	if (isW3C)	{ top.Seite.Navigation.document.getElementById('Merkliste').style.visibility = "hidden"; }
	if (isIE)	{ top.Seite.Navigation.document.all['Merkliste'].style.visibility = "hidden"; }
	}