var SlideShowSpeed = 3000;
var CrossFadeDuration = 4;
var Photo = new Array(); 

Photo[1]='img/step-1.gif';
Photo[2]='img/step-2.gif';
Photo[3]='img/step-3.gif';

var tss;
var iss;
var jss = 1;
var pss = Photo.length-1;
var preLoad = new Array();
for (iss = 1; iss < pss+1; iss++){
preLoad[iss] = new Image();
preLoad[iss].src = Photo[iss];}

function runSlideShow(){
if (document.all){
	document.images.MainPhoto.style.filter="blendTrans(duration=2)";
	document.images.MainPhoto.style.filter="blendTrans(duration=CrossFadeDuration)";
	document.images.MainPhoto.filters.blendTrans.Apply();}
	document.images.MainPhoto.src = preLoad[jss].src;
	if (document.all) document.images.MainPhoto.filters.blendTrans.Play();
	jss = jss + 1;
	if (jss > (pss)) jss=1;
	tss = setTimeout('runSlideShow()', SlideShowSpeed);
}