<!--dhtml.js (Bibliothek)-->


vorgeladeneBilder=new Array();
function Bilderladen () {
  for (i=0; i<arguments.length ; i++ ) {
     Bild=new Image();
     Bild.src=arguments[i];
     vorgeladeneBilder[i]=Bild;
     }
return
}


var N4=false;
var IE=false;
var W3C=false;
// browserbestimmung


function checkBrowser () {

   if (document.layers)
    N4=true;
  else if (document.all)
    IE=true;
  else if (document.getElementById)
    W3C=true;
}

function wechselDivImage (a,b,c) {       //erwartet Bildquelle,Bildname,DivId
 if (N4)
document.layers[c].document.images[b].src=a
 else {
  if (IE)
  document.images[b].src=a
  else {
   if (W3C)
   document.getElementById(b).src=a
  }
 }
 return
}


function dhtml_obj(id) {
  if (N4)
    return document.layers[id];
  else if (IE)
    return document.all[id];
  else if (W3C)
    return document.getElementById(id);
}

function dhtml_style(id) {
  if (N4)
    return dhtml_obj(id);
  else if (IE || W3C)
    return dhtml_obj(id).style;
}

function dhtml_hide(id) {
        dhtml_style(id).visibility = "hidden";
    return
}

function dhtml_show(id) {
          dhtml_style(id).visibility = "visible";
    return
}

function zeige_bild (id) {
if(ns) {
parent.unav.document.layers[id].visibility="show";
}
if(ns6) {
parent.unav.document.getElementById(id).style.visibility="visible";
}
if(ie){
parent.unav.document.all[id].style.visibility="visible";
}
}

function hide_bild (id) {
if(ns) {
parent.unav.document.layers[id].visibility="hidden";
}
if(ns6) {
parent.unav.document.getElementById(id).style.visibility="hidden";
}
if(ie){
parent.unav.document.all[id].style.visibility="hidden";
}
}

function zeige_layer (a) {
hideall ();
if(ns) {
parent.unav.document.layers[a].visibility="show";
}
if(ns6) {
parent.unav. document.getElementById(a).style.visibility="visible";
}
if(ie){
 parent.unav.document.all[a].style.visibility="visible";
 
}
}
function hide_layer (a) {
if(ns) {
parent.unav.document.layers[a].visibility="hidden";
}
if(ns6) {
 parent.unav.document.getElementById(a).style.visibility="hidden";
}
if(ie){
 parent.unav.document.all[a].style.visibility="hidden";
}
}

function zeige_text (a) {
hideall2 ();
if(ns) {
parent.unav.document.layers[a].visibility="show";
}
if(ns6) {
parent.unav. document.getElementById(a).style.visibility="visible";
}
if(ie){
 parent.unav.document.all[a].style.visibility="visible";
}
}

function hide_text (a) {
if(ns) {
parent.unav.document.layers[a].visibility="hidden";
}
if(ns6) {
parent.unav. document.getElementById(a).style.visibility="hidden";
}
if(ie){
 parent.unav.document.all[a].style.visibility="hidden";
}
}