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/current1.gif";
o1 = new Image();
o1.src = "images/navi/current2.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/download1.gif";
o3 = new Image();
o3.src = "images/navi/download2.gif";
n4 = new Image();
n4.src = "images/navi/subscription1.gif";
o4 = new Image();
o4.src = "images/navi/subscription2.gif";

function chp(Bildnr,Bildobjekt)
{
 window.document.images[Bildnr].src = Bildobjekt.src;
}
function fix1() {
n1.src = "images/navi/current2.gif";
n2.src = "images/navi/archiv1.gif";
n3.src = "images/navi/download1.gif";
n4.src = "images/navi/subscription1.gif";
chp(1,o1)
}

function fix2() {
n1.src = "images/navi/current1.gif";
n2.src = "images/navi/archiv2.gif";
n3.src = "images/navi/download1.gif";
n4.src = "images/navi/subscription1.gif";
chp(2,o2)
}

function fix3() {
n1.src = "images/navi/current1.gif";
n2.src = "images/navi/archiv1.gif";
n3.src = "images/navi/download2.gif";
n4.src = "images/navi/subscription1.gif";
chp(3,o3)
}

function fix4() {
n1.src = "images/navi/current1.gif";
n2.src = "images/navi/archiv1.gif";
n3.src = "images/navi/download1.gif";
n4.src = "images/navi/subscription2.gif";
chp(4,o4)
}

function fix5() {
n1.src = "images/navi/current1.gif";
n2.src = "images/navi/archiv1.gif";
n3.src = "images/navi/download1.gif";
n4.src = "images/navi/subscription1.gif";
chp(5,o5)
}

function fix6() {
n1.src = "images/navi/current1.gif";
n2.src = "images/navi/archiv1.gif";
n3.src = "images/navi/download1.gif";
n4.src = "images/navi/subscription1.gif";
chp(6,o6)
}


/* ab hier gehe zum jahr der auswahlbox */

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