NewImg = new Array (
"images/Tour005.jpg",
"images/Tour006.jpg",
"images/Tour007.jpg",
"images/Tour008.jpg",
"images/Tour010.jpg",
"images/Tour011.jpg",
"images/Tour012.jpg",
"images/Tour013.jpg",
"images/Tour014.jpg",
"images/Tour015.jpg",
"images/Tour016.jpg",
"images/Tour017.jpg",
"images/Tour019.jpg",
"images/Tour020.jpg",
"images/Tour021.jpg",
"images/Tour022.jpg",
"images/Tour023.jpg",
"images/Tour024.jpg",
"images/Tour025.jpg",
"images/Tour026.jpg"
);
var ImgNum = 0;
var ImgLength = NewImg.length - 1;

//Time delay between Slides in milliseconds
var delay = 3000;

var lock = false;
var run;
function chgImg(direction) {
if (document.images) {
ImgNum = ImgNum + direction;
if (ImgNum > ImgLength) {
ImgNum = 0;
}
if (ImgNum < 0) {
ImgNum = ImgLength;
}
document.tourshow.src = NewImg[ImgNum];
   }
}
function auto() {
if (lock == true) {
lock = false;
window.clearInterval(run);
}
else if (lock == false) {
lock = true;
run = setInterval("chgImg(1)", delay);
   }
}