var c=0
var s
function photoGallery()
{
if (c%5==0){
document.getElementById('photo-gallery').src = "Images/pic1.jpg";
}
if (c%5==1){
document.getElementById('photo-gallery').src = "Images/pic2.jpg";
}
if (c%5==2){
document.getElementById('photo-gallery').src = "Images/pic3.jpg";
}
if (c%5==3){
document.getElementById('photo-gallery').src = "Images/pic4.jpg";
}
if (c%5==4){
document.getElementById('photo-gallery').src = "Images/pic5.jpg";
}
c=c+1
s=setTimeout("photoGallery()",3000)
}