var slideShowSpeed = 4000;
// Duration of crossfade (seconds)
var crossFadeDuration = 5;
// Specify the image files

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();
//alert (document.url_change.value);
}

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);
}
function stopshow(){
clearInterval(t);
}