var interval = 2.5; // tijd tussen wisselen van de afbeeldingen (in seconden)
  var random_display = 0; // 0 = vaste volgorde, 1 = willekeurige volgorde
  interval *= 1000;
  var image_index = 0;
  image_list = new Array();
  image_list[image_index++] = new imageItem("images/FSC_MarjanCornille.jpg");
  image_list[image_index++] = new imageItem("images/FSC_AnkieKeultjes.jpg");
  image_list[image_index++] = new imageItem("images/FSC_AdvMeurs.jpg");
  var number_of_image = image_list.length;
  function imageItem(image_location) {
   this.image_item = new Image();
   this.image_item.src = image_location;}
  function get_ImageItemLocation(imageObj) {
   return(imageObj.image_item.src)}
  function generate(x, y) {
   var range = y - x + 1;
   return Math.floor(Math.random() * range) + x;}
  function getNextImage() {
   if (random_display) {image_index = generate(0, number_of_image-1);}
   else {image_index = (image_index+1) % number_of_image;}
   var new_image = get_ImageItemLocation(image_list[image_index]);
   return(new_image);}
  function beeldwissel(place) {
  var new_image = getNextImage();
  document[place].src = new_image;
  var recur_call = "beeldwissel('"+place+"')";
  setTimeout(recur_call, interval);}