var slideShowSpeed = 5000;
var crossFadeDuration = 100;
var Pic = new Array() 
Pic[0] = 'top.jpg'
Pic[1] = 'top2.jpg'
Pic[2] = 'top3.jpg'
Pic[3] = 'top4.jpg'

var t;
var j = 0;
var y;
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(){
   j = Math.round(Math.random()*(p));
   //alert("j="+j+" | y="+y);
   if (j == y) j++;
   if (j > (p-1)) j = 0;
   if (document.all){
      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();
   }
   t = setTimeout('runSlideShow()', slideShowSpeed);
   y = j;
}