var browser = "none";
/* Netscape check */

if(navigator.appName == "Netscape")
   	{
   	/* Netscape 5 and higher check*/
   	if (parseInt(navigator.appVersion) >= 5)
   		{
   		browser = "Netscape5 and above";
   		doclobj = "document.getElementById";
   		objtagopen = "('";
   		objtagclose = "').";
   		leftpix = "style.left";
   		toppix = "style.top";
   		visprop = "style.visibility";
   		showstr = "'visible'";
   		hidestr = "'hidden'";
   		}
/* all old Netscapes */
else
       	{
   		browser = "Netscape 4";
   		doclobj = "document.layers";
   		objtagopen = "['";
   		objtagclose = "'].";
   		leftpix = "left";
   		toppix = "top";
   		visprop = "visibility";
   		showstr = "'show'";
   		hidestr = "'hide'";
   		}
   	}
/* all other bowsers */
else
   		{
   		browser = "MSIE";
   		doclobj = "document.all";
   		objtagopen = "['";
   		objtagclose = "'].";
   		leftpix = "style.pixelLeft";
   		toppix = "style.pixelTop";
   		visprop = "style.visibility";
   		showstr = "'visible'";
   		hidestr = "'hidden'";
   		}

function hi(nam)
   	{
   	bla = doclobj + objtagopen + nam + objtagclose + visprop + " = " + showstr;
   	eval(bla);
   	}

function lo(nam)
	{
	bla = doclobj + objtagopen + nam + objtagclose + visprop + " = " + hidestr;
	eval(bla);
	}

function popup(url,windowtitle,params)
	{
	window1=window.open(url, windowtitle, params);
	}



/* ab hier rollover button navi */

n1 = new Image();
n1.src = "/images/navi/aktuell1.gif";
o1 = new Image();
o1.src = "/images/navi/aktuell2.gif";
n2 = new Image();
n2.src = "/images/navi/archiv1.gif";
o2 = new Image();
o2.src = "/images/navi/archiv2.gif";
n3 = new Image();
n3.src = "/images/navi/waswannwo1.gif";
o3 = new Image();
o3.src = "/images/navi/waswannwo2.gif";
n4 = new Image();
n4.src = "/images/navi/unterricht1.gif";
o4 = new Image();
o4.src = "/images/navi/unterricht2.gif";
n5 = new Image();
n5.src = "/images/navi/aboservice1.gif";
o5 = new Image();
o5.src = "/images/navi/aboservice2.gif";
n6 = new Image();
n6.src = "/images/navi/shop1.gif";
o6 = new Image();
o6.src = "/images/navi/shop2.gif";

function chp(Bildnr,Bildobjekt)
{
 window.document.images[Bildnr].src = Bildobjekt.src;
}
function fix1() {
n1.src = "/images/navi/aktuell2.gif";
n2.src = "/images/navi/archiv1.gif";
n3.src = "/images/navi/waswannwo1.gif";
n4.src = "/images/navi/unterricht1.gif";
n5.src = "/images/navi/aboservice1.gif";
n6.src = "/images/navi/shop1.gif";
chp(1,o1)
}

function fix2() {
n1.src = "/images/navi/aktuell1.gif";
n2.src = "/images/navi/archiv2.gif";
n3.src = "/images/navi/waswannwo1.gif";
n4.src = "/images/navi/unterricht1.gif";
n5.src = "/images/navi/aboservice1.gif";
n6.src = "/images/navi/shop1.gif";
chp(2,o2)
}

function fix3() {
n1.src = "/images/navi/aktuell1.gif";
n2.src = "/images/navi/archiv1.gif";
n3.src = "/images/navi/waswannwo2.gif";
n4.src = "/images/navi/unterricht1.gif";
n5.src = "/images/navi/aboservice1.gif";
n6.src = "/images/navi/shop1.gif";
chp(3,o3)
}

function fix4() {
n1.src = "/images/navi/aktuell1.gif";
n2.src = "/images/navi/archiv1.gif";
n3.src = "/images/navi/waswannwo1.gif";
n4.src = "/images/navi/unterricht2.gif";
n5.src = "/images/navi/aboservice1.gif";
n6.src = "/images/navi/shop1.gif";
chp(4,o4)
}

function fix5() {
n1.src = "/images/navi/aktuell1.gif";
n2.src = "/images/navi/archiv1.gif";
n3.src = "/images/navi/waswannwo1.gif";
n4.src = "/images/navi/unterricht1.gif";
n5.src = "/images/navi/aboservice2.gif";
n6.src = "/images/navi/shop1.gif";
chp(5,o5)
}

function fix6() {
n1.src = "/images/navi/aktuell1.gif";
n2.src = "/images/navi/archiv1.gif";
n3.src = "/images/navi/waswannwo1.gif";
n4.src = "/images/navi/unterricht1.gif";
n5.src = "/images/navi/aboservice1.gif";
n6.src = "/images/navi/shop2.gif";
chp(6,o6)
}


/* ab hier gehe zum jahr der auswahlbox */

function GotoURL(f) {
  self.location.href = f.archivjahr.options[f.archivjahr.selectedIndex].value;
}