// Set slideShowSpeed (milliseconds)
var slideShowSpeed = 3500;
// Duration of crossfade (seconds)
var crossFadeDuration = 3;
// Specify the image files
var Pic = new Array();
var Pict = new Array();
var Picture = new Array();
// to add more images, just continue
// the pattern, adding to the array below

Pic[0] = 'gifs/magni.jpg';
Pic[1] = 'gifs/achromatic-lenses.jpg';
Pic[2] = 'gifs/binocular.jpg';
Pic[3] = 'gifs/lenses-telescope.jpg';
Pic[4] = 'gifs/plano-convex-lenses.jpg';


Pict[0] = 'gifs/optical-flats.jpg';
Pict[1] = 'gifs/cylindrical-lenses.jpg';
Pict[2] = 'gifs/meniscus-lenses.jpg';
Pict[3] = 'gifs/mirrors.jpg';
Pict[3] = 'gifs/prisms.jpg';


Picture[0] = 'gifs/lenss.jpg';
Picture[1] = 'gifs/double-concave-lenses.jpg';
Picture[2] = 'gifs/filters.jpg';
Picture[3] = 'gifs/plano-concave-lenses.jpg';
Picture[3] = 'gifs/triplets.jpg';

// do not edit anything below this line

var t;
var j = 0,k=0;
var p = Pic.length;
var q = Pict.length;
var r = Picture.length;

var preLoad = new Array();
var preLoad2 = new Array();
var preLoad3 = new Array();

for (i = 0; i < p; i++) {
preLoad[i] = new Image();
preLoad[i].src = Pic[i];
}

for (i = 0; i < q; i++) {
preLoad2[i] = new Image();
preLoad2[i].src = Pict[i];
}

for (i = 0; i < r; i++) {
preLoad3[i] = new Image();
preLoad3[i].src = Picture[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.SlideShow1.style.filter="blendTrans(duration=2)";
document.images.SlideShow1.style.filter="blendTrans(duration=crossFadeDuration)";
document.images.SlideShow1.filters.blendTrans.Apply();

document.images.SlideShow2.style.filter="blendTrans(duration=2)";
document.images.SlideShow2.style.filter="blendTrans(duration=crossFadeDuration)";
document.images.SlideShow2.filters.blendTrans.Apply();

}
document.images.SlideShow.src = preLoad[k].src;
document.images.SlideShow1.src = preLoad2[j].src;
document.images.SlideShow2.src = preLoad3[j].src;

if (document.all) {
document.images.SlideShow.filters.blendTrans.Play();
document.images.SlideShow1.filters.blendTrans.Play();
document.images.SlideShow2.filters.blendTrans.Play();
}
j = j + 1;
k = k + 1;
if (j > (q - 1))j = 0;
if(k>(p-1)) k=0;
{
}
t = setTimeout('runSlideShow()', slideShowSpeed);
}
//  End -->