function LoadRotatingImages() {
  for (var i in rotating_images) {
    LoadRotatingImage(i);
  }
}

function LoadRotatingImage(a) {
  var c = Math.round(rotating_images[a].length*Math.random()) - 1;
  if (c < 0) c = 0;
  if (c > (rotating_images[a].length - 1)) c = rotating_images[a].length -1;
  document.getElementById(a).src = rotating_images[a][c];
}

var rotating_images = new Object();

function AddRotatingImage(a, b) {
  if (!rotating_images[a])
    rotating_images[a] = new Array();
  rotating_images[a][rotating_images[a].length] = b;
}


AddRotatingImage("rotating_image_1","http://org.elon.edu/urweb/anac/images/anac1.jpg");
AddRotatingImage("rotating_image_1","http://org.elon.edu/urweb/anac/images/anac2.jpg");
AddRotatingImage("rotating_image_1","http://org.elon.edu/urweb/anac/images/anac3.jpg");