var fadeout=500;
var layertimeout1 = window.setTimeout("dummy()",10);
var newDHTML = (document.getElementById) ? true : false;
var ns = (navigator.appName.indexOf('Netscape')!=-1) ? true : false;
var ie = (document.all) ? true : false;
var navVersion = navigator.appVersion.substring(0,1)

function dummy(){return true;}

function showlayer(nr)
{
	if (nr==1){window.clearTimeout(layertimeout1);}
	if (newDHTML)	{document.getElementById(''+eval('"zitat' + nr +'"')).style.visibility ="visible";}
	else if (ns)	{document.layers[''+eval('"zitat' + nr +'"')].visibility="show";}
	else				{document.all[''+eval('"zitat' + nr +'"')].style.visibility="visible";}
}

function layerout(nr)
{
	if (nr==1){layertimeout1 = window.setTimeout("hidelayer(1)",fadeout);}
	if (nr==2){layertimeout2 = window.setTimeout("hidelayer(2)",fadeout);}
	if (nr==3){layertimeout3 = window.setTimeout("hidelayer(3)",fadeout);}
}

function hidelayer(nr)
{
	if (newDHTML)	{document.getElementById(''+eval('"zitat' + nr +'"')).style.visibility ="hidden";}
	if (ns==true)	{document.layers[''+eval('"zitat' + nr +'"')].visibility="hide";}
	else				{document.all[''+eval('"zitat' + nr +'"')].style.visibility="hidden";}
}