var altStyle = "kontrast";
var Tage = 0;
var isAlt=readCookie("kontrast");
var strURLOffset="/webbeta";

function switchStylesheet() {
  //if (!document.getElementById) return;
  isAlt=Math.abs(isAlt-1);
  createCookie("kontrast",isAlt,Tage);
  window.location.reload();
}

function BildWechsel()
{	var maxAnzahl=12;
	var aktBild=Math.round(Math.random()*(maxAnzahl-1)+1);
	document.getElementById("bildlinks").src="images/index/banner" + aktBild + ".jpg";
	document.getElementById("bildrechts").src="images/index/banner" + (maxAnzahl-aktBild+1) + ".jpg";
	
}


function AktiverLink()
{
	var NullEbene="webbeta plaene"; //Ordnernamen, die keinen korrespondierenden Navigationspunkt besitzen
	var strID=document.location.pathname;
	strID=strID.substring(0,strID.lastIndexOf("/"));
	strID=strID.substring(strID.lastIndexOf("/")+1);
	strID=strID.toLowerCase();
	//strID ist jetzt der Ordnername aus der URL 
	if (strID!="" && NullEbene.indexOf(strID)<0)
	{
		with (document.getElementById(strID))
			{	style.backgroundPositionY="0.55em";
				style.fontWeight="bold";
			}
	}
}

function BreadCrumb() {
	var strBC=document.location.pathname;
	strBC=strBC.replace(strURLOffset,"");
	var strFullBC="";
	var arrBC=strBC.split("/");
	var strHref="";
	if (arrBC.length>3) {
	for (var i=1;i<arrBC.length-2;i++){
		arrBC[i]=arrBC[i].toLowerCase();
		strLink=document.getElementById(arrBC[i]).innerHTML;
		strHref = strHref + "/" + arrBC[i];
		strFullBC=strFullBC+"<a href='"+ strHref +"'>"+strLink+"</a>|"
	}
	strLink=document.getElementById(arrBC[i].toLowerCase()).innerHTML;
	strFullBC=strFullBC+strLink;
	document.getElementById("BC").innerHTML=strFullBC;
	}
}

function UpdDatum()
{
var arrDatum=document.lastModified.substr(0,10).split("/");
if (navigator.appName=="Netscape") 
{return "";}
else
{return arrDatum[1]+"."+arrDatum[0]+"."+arrDatum[2];}
}

function createCookie(name,value,days) {
	if (days) {
	  var date = new Date();
	  date.setTime(date.getTime()+(days*24*60*60*1000));
	  var expires = ";expires="+date.toGMTString();
	  }
	else expires = "";
	document.cookie=name+"="+value+expires + ";" +"path=/";
}
function readCookie(name) {
 var nameEQ = name + "=";
 var ca = document.cookie.split(';');
 for (var i=0;i<ca.length;i++) {
 	var c = ca[i];
 	while (c.charAt(0)==' ') c=c.substring(1,c.length);
 	if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
 	}
 	return null;
}

function SiteMap() {
strH2="hochschule sav ssv spz srp lsbk service ";
strH2Link="studium ";
strH3="fbav fbsv fbpz fbrp ai fi ipaf bewerbung ";
arrLinks=document.getElementsByTagName("a");
intAnzahl=arrLinks.length;
for (i=0;i<intAnzahl;i++) if (arrLinks[i].id=="hochschule") {intFirst=i;break;}
for (var i=intFirst;i<intAnzahl;i++) {
if (arrLinks[i].id=="") continue;

if (strH2.indexOf(arrLinks[i].id+" ")>=0) document.write("<h2>"+arrLinks[i].innerHTML+"</h2>");
	else if (strH2Link.indexOf(arrLinks[i].id+" ")>=0) 
		document.write("<h2><a href='"+arrLinks[i].href+"'>"+arrLinks[i].innerHTML+"</a></h2>"); 
	else if (strH3.indexOf(arrLinks[i].id+" ")>=0) 
		document.write("<h3><a href='"+arrLinks[i].href+"'>"+arrLinks[i].innerHTML+"</a></h3>"); 
	else
		document.write("<a class='ebene3' href='"+arrLinks[i].href+"'>"+arrLinks[i].innerHTML+"</a><br/>");
	
}
}

function NeuesFenster(strDateiname,Breite,Hoehe,strText) {
var posX=(screen.availWidth-Breite)/2;
var posY=(screen.availHeight-Hoehe)/2;
var strEigenschaften="width="+Breite+",height="+Hoehe+",top="+posY+",left="+posX;

window.open(strDateiname,"neu",strEigenschaften);

}