var rotator_images = new Array();
var rotator_descriptions = new Array(
  "Boat Launching, Father Hennepin Park",
  "Basket 2",
  "Flower Boat",
  "Boat Fleet, Lake Phalen",
  "Brown Boat",
  "Checking out his boat, Father Hennepin Park",
  "Bridge Boats—Line",
  "Dinner Composition",
  "Maple Syrup Dispensers",
  "Tile Installation"
);
var num_images = rotator_descriptions.length;
var current_index = num_images - 1;
var img_div;

window.onload = function() {
  img_div = document.getElementById('img');
  for(var i = 0; i < num_images; i++) {
    rotator_images.push(new Image());
    //rotator_images[i].width = 640;
    rotator_images[i].height = 480;
    rotator_images[i].src = "images/home/" + i + ".jpg";
    rotator_images[i].alt = rotator_descriptions[i];
  }
  rotator_next();
}

function rotator_next() {
  current_index++;
  if (current_index >= num_images) current_index = 0;
  img_div.innerHTML = '';
  img_div.appendChild(rotator_images[current_index]);
  setTimeout(rotator_next, 3000);
}