var aktbild=1;
var bim=0;
function na(n){
  var xn=String(n);
  if(String(n).length==2) document.getElementById("nv"+xn.substr(0,1)).style.color="#0099CC";
  document.getElementById("nv"+xn).style.color="#0099CC";
  var el = document.getElementsByName("xlink");
  bim=el.length;
}
function sa(m){
 if(aktbild != m){
  if(aktbild!=0){
    document.getElementById('anz'+String(aktbild)).style.visibility="hidden";
    document.getElementById('un'+String(aktbild)).className="xan";
  }
  document.getElementById('anz'+String(m)).style.visibility="visible";
  document.getElementById('un'+String(m)).className="xaus";
  aktbild=m;
 }
}

function setBild(a,b,c){
  var pf="";
  if(a){
    pf="img/"+b+"/gross/"+c+".jpg";
    document.getElementById('ob0').style.visibility="visible";
    document.getElementById('ob2').style.visibility="visible";
  
  } else {
    pf="img/laedt.gif";
    document.getElementById('ob0').style.visibility="hidden";
    document.getElementById('ob2').style.visibility="hidden";
  }
    if(pf!="") document.getElementById('vorschau').src=pf;
}
function sx(k){
  var tn=aktbild+k;
  if(tn>bim) tn=1;
  if(tn<1) tn=bim;
  sa(tn);
}