var slideShowSpeed = 7500;
var crossFadeDuration = 5000;
var Pic = new Array();
Pic[0] = 'images/rotation/1.jpg';
Pic[1] = 'images/rotation/2.jpg';
Pic[2] = 'images/rotation/3.jpg';
Pic[3] = 'images/rotation/4.jpg';
var t;
var j = 0;
var p = Pic.length;
var preLoad = new Array();
for (i = 0; i < p; i++) {
   preLoad[i] = new Image();
   preLoad[i].src = Pic[i];
}
function runSlideShow() {
   if (document.all) {
      document.images.SlideShow.style.filter="blendTrans(duration=2)";
      document.images.SlideShow.style.filter="blendTrans(duration=crossFadeDuration)";
      document.images.SlideShow.filters.blendTrans.Apply();
   }
   document.images.SlideShow.src = preLoad[j].src;
   if (document.all) {
      document.images.SlideShow.filters.blendTrans.Play();
   }
   j = j + 1;
   if (j > (p-1)) j=0;
   t = setTimeout('runSlideShow()', slideShowSpeed);
}