var blinkant=0;
document.getElementById('blink').style.color='black';
setTimeout('blinkoff()',1000);

function gassu() {document.getElementById('beskriv').innerHTML="Well";}
function sigev() {document.getElementById('beskriv').innerHTML="Leachate treatment";}
function sigev() {document.getElementById('beskriv').innerHTML="Tank for collection of leachate";}
function gasso() {document.getElementById('beskriv').innerHTML="Process and control room";}
function siger() {document.getElementById('beskriv').innerHTML="Leachate treatment";}        
function gassm() {document.getElementById('beskriv').innerHTML="Gas engine";}
function strom() {document.getElementById('beskriv').innerHTML="Electric power distribution";}
function vvann() {document.getElementById('beskriv').innerHTML="Hot water distribution";}
function avfal() {document.getElementById('beskriv').innerHTML="Membrane";}
function fakke() {document.getElementById('beskriv').innerHTML="Flare";}
function beskr() {document.getElementById('beskriv').innerHTML="";}

function blink() {
  document.getElementById('blink').style.color='red';
  setTimeout('blinkoff()',300);
}
function blinkoff() {
  document.getElementById('blink').style.color='black';
  blinkant++;
  if (blinkant>9) {return false};
  setTimeout('blink()',300);
}