NewImg = new Array (
"images/Home/DandD01b.jpg",
"images/Home/Family01b.jpg",
"images/Home/Throw01b.jpg",
"images/Home/Tulips01b.jpg"
);

var ImgNum = 0;
var ImgLength = NewImg.length - 1;
//Time delay between Slides in milliseconds
var delay = 3500;
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.slideshow.src = NewImg[ImgNum];
}
}

function auto() {
if (lock == true) {
lock = false;
window.clearInterval(run);
}
else if (lock == false) {
lock = true;
run = setInterval("chgImg(1)", delay);
   }
}