// preload images
if (document.images)  {
  leafOn = "pix/listo_on.png";
  leafOff = "pix/listo.png";
  smokeOn = "pix/smoke.png";
  smokeOff = "pix/blind.gif";
  
  leaf1On = new Image(17,26);
  leaf1On.src = leafOn;  
  leaf2On = new Image(17,26);
  leaf2On.src = leafOn; 
  leaf3On = new Image(17,26);
  leaf3On.src = leafOn; 
  etiketOn = new Image(26,27);
  etiketOn.src = "pix/etiket_on.png"
  
  leaf1Off = new Image(17,26);
  leaf1Off.src = leafOff;
  leaf2Off = new Image(17,26);
  leaf2Off.src = leafOff;
  leaf3Off = new Image(17,26);
  leaf3Off.src = leafOff;
  etiketOff = new Image(26,27);
  etiketOff.src = "pix/etiket.png"
  
  smoke1On = new Image(24,33);
  smoke1On.src = smokeOn;  
  smoke2On = new Image(24,33);
  smoke2On.src = smokeOn; 
  smoke3On = new Image(24,33);
  smoke3On.src = smokeOn; 
  
  smoke1Off = new Image(24,33);
  smoke1Off.src = smokeOff;
  smoke2Off = new Image(24,33);
  smoke2Off.src = smokeOff;
  smoke3Off = new Image(24,33);
  smoke3Off.src = smokeOff;
}

function lightup(imgName) {
   if (document.images) {
      imgOn = eval(imgName + "On.src");
      document[imgName].src = imgOn;
    }
}

function turnoff(imgName) {
   if (document.images)
    {
      imgOff = eval(imgName + "Off.src");
      document[imgName].src = imgOff;
    }
}


/*
function imgChange(divID, imgName) {
  divHTML = '<img src="pix/' + imgName + '" border="0">';
  document.getElementById(divID).innerHTML = divHTML;
}
*/