<!--
// showlayer functions done with brute force
// (could use an array of these things to simplify 
// the code).

function showlayer1() {
  document.getElementById("layer1").style.display="block";
  document.getElementById("layer2").style.display="none";
  document.getElementById("layer3").style.display="none";
  document.getElementById("layer4").style.display="none";
  document.getElementById("layer5").style.display="none";
  document.getElementById("layer6").style.display="none";
 }

function showlayer2() {
  document.getElementById("layer1").style.display="none";
  document.getElementById("layer2").style.display="block";
  document.getElementById("layer3").style.display="none";
  document.getElementById("layer4").style.display="none";
  document.getElementById("layer5").style.display="none";
  document.getElementById("layer6").style.display="none";
}


function showlayer3() {
  document.getElementById("layer1").style.display="none";
  document.getElementById("layer2").style.display="none";
  document.getElementById("layer3").style.display="block";
  document.getElementById("layer4").style.display="none";
  document.getElementById("layer5").style.display="none";
  document.getElementById("layer6").style.display="none";
}
	
function showlayer4() {
  document.getElementById("layer1").style.display="none";
  document.getElementById("layer2").style.display="none";
  document.getElementById("layer3").style.display="none";
  document.getElementById("layer4").style.display="block";
  document.getElementById("layer5").style.display="none";
  document.getElementById("layer6").style.display="none";
}

function showlayer5() {
  document.getElementById("layer1").style.display="none";
  document.getElementById("layer2").style.display="none";
  document.getElementById("layer3").style.display="none";
  document.getElementById("layer4").style.display="none";
  document.getElementById("layer5").style.display="block";
  document.getElementById("layer6").style.display="none";
  }


function showlayer6() {
  document.getElementById("layer1").style.display="none";
  document.getElementById("layer2").style.display="none";
  document.getElementById("layer3").style.display="none";
  document.getElementById("layer4").style.display="none";
  document.getElementById("layer5").style.display="none";
  document.getElementById("layer6").style.display="block";
}
	

function Venster(URL) {
venster = window.open(URL, 'popupvenster', 'width=1000, height=750, resizable=no, menubar=no, scrollbars=no, status=no, toolbar=no');
}

   
//-->