// JavaScript Document
var interval = 1500;
	var random_display = 0;
	var imageDir = "myImages/"; 
	
	var imageNum = 0;
	imageArray = new Array();
	imageArray[imageNum++] = new imageItem(imageDir + "0.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "1.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "2.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "3.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "4.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "5.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "6.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "7.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "8.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "9.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "10.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "11.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "12.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "13.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "14.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "15.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "16.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "17.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "18.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "19.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "20.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "21.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "22.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "23.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "24.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "25.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "26.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "27.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "28.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "29.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "30.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "31.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "32.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "33.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "34.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "35.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "36.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "37.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "38.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "39.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "40.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "41.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "42.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "43.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "44.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "45.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "46.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "47.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "48.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "49.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "50.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "51.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "52.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "53.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "54.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "55.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "56.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "57.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "58.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "59.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "60.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "61.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "62.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "63.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "64.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "65.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "66.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "67.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "68.jpg");
	
	 var totalImages = imageArray.length;
	 
	function imageItem(image_location) {
		this.image_item = new Image();
		this.image_item.src = image_location;
	}
	function get_ImageItemLocation(imageObj) {
		return(imageObj.image_item.src)
	}
	
	function randNum(x, y) {
		var range = y - x + 1;
		return Math.floor(Math.random() * range) + x;
	}
	
	function getNextImage() {
		if (random_display) {
			imageNum = randNum(0, totalImages-1);
		}
		else {
			imageNum = (imageNum+1) % totalImages;
		}
		
	var new_image = get_ImageItemLocation(imageArray[imageNum]);
	return(new_image);
	}
	
	function getPrevImage() {
		imageNum = (imageNum-1) % totalImages;
		var new_image = get_ImageItemLocation(imageArray[imageNum]);
		return(new_image);
	}
	
	function prevImage(place) {
		var new_image = getPrevImage();
		document[place].src = new_image;
	}
	
	function switchImage(place) {
		var new_image = getNextImage();
		document[place].src = new_image;
		var recur_call = "switchImage('"+place+"')";
		timerID = setTimeout(recur_call, interval);
        }