if(document.images){
  SLIDES.image = document.images.SLIDESIMG;
  // Create a function to ramp up the image opacity in Mozilla
  var fadein_opacity = 0.04;
  var fadein_img = SLIDES.image;
  function fadein(opacity) {
    if (typeof opacity != 'undefined') { fadein_opacity = opacity; }
    if (fadein_opacity < 0.99 && fadein_img && fadein_img.style &&
        typeof fadein_img.style.MozOpacity != 'undefined') {
  
      fadein_opacity += .05;
      fadein_img.style.MozOpacity = fadein_opacity;
      setTimeout("fadein()", 50);
    }
  }
  // Tell the slideshow to call our function whenever the slide is changed
  SLIDES.post_update_hook = function() { fadein(0.04); }
}