<!--
  dom = (document.getElementById)? true:false
  ns = (document.layers)? true:false
  ie = (document.all)? true:false

function zeigpopup(p){
  if (dom){
    document.getElementById("popup1").style.visibility = "hidden";
    document.getElementById("popup2").style.visibility = "hidden";
    document.getElementById("popup3").style.visibility = "hidden";
    document.getElementById("popup4").style.visibility = "hidden";
    document.getElementById("popup5").style.visibility = "hidden";
    document.getElementById(p).style.visibility = "visible";
  }
  else if (ie){
    if (p == "popup1") p = popup1;
    if (p == "popup2") p = popup2;
    if (p == "popup3") p = popup3;
    if (p == "popup4") p = popup4;
    if (p == "popup5") p = popup5;
    popup1.style.visibility = "hidden";
    popup2.style.visibility = "hidden";
    popup3.style.visibility = "hidden";
    popup4.style.visibility = "hidden";
    popup5.style.visibility = "hidden";
    p.style.visibility = "visible";
  }

  else if (ns){
    document.popup1.visibility = "hide";
    document.popup2.visibility = "hide";
    document.popup3.visibility = "hide";
    document.popup4.visibility = "hide";
    document.popup5.visibility = "hide";
    if (p == "popup1") document.popup1.visibility = "show";
    if (p == "popup2") document.popup2.visibility = "show";
    if (p == "popup3") document.popup3.visibility = "show";
    if (p == "popup4") document.popup4.visibility = "show";
    if (p == "popup5") document.popup5.visibility = "show";
  }
}



function wegpopup(){
  if (dom){
    document.getElementById("popup1").style.visibility = "hidden";
    document.getElementById("popup2").style.visibility = "hidden";
    document.getElementById("popup3").style.visibility = "hidden";
    document.getElementById("popup4").style.visibility = "hidden";
    document.getElementById("popup5").style.visibility = "hidden";
  }
  else if (ie){
    popup1.style.visibility = "hidden";
    popup2.style.visibility = "hidden";
    popup3.style.visibility = "hidden";
    popup4.style.visibility = "hidden";
    popup5.style.visibility = "hidden";
  }

  else if (ns){
    document.popup1.visibility = "hide";
    document.popup2.visibility = "hide";
    document.popup3.visibility = "hide";
    document.popup4.visibility = "hide";
    document.popup5.visibility = "hide";
  }
}
//-->