// Creat new image objects
function newImage(arg) {
   if (document.images) {
      rslt = new Image();
      rslt.src = arg;
      return rslt;
   }
}

// Change the image if the rest of the page is loaded
function changeImages() {
   if (document.images && (preloadFlag == true)) {
      for (var i=0; i<changeImages.arguments.length; i+=2) {
         document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
      }
   }
}

// Preloads the images
var preloadFlag = false;
function preloadImages() {
   if (document.images) {
      image1 = newImage("ftp://ftp.redrose.net/mhcustom/moondance/animation1.gif");
            preloadFlag = true;
   }
}