var interval = 3000;
	var random_display = 0;
	var imageDir = "images/virtual-tour/";

var imageNum = 0;
	imageArray = new Array();
	imageArray[imageNum++] = new imageItem(imageDir + "001.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "002.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "003.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "004.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "005.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "006.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "007.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "008.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "009.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "011.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "012.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "013.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "014.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "015.jpg");

var captionNum = 0;
	captionArray = new Array();
	captionArray[captionNum++] = "Welcome to the Albany County Hall of Records!";
	captionArray[captionNum++] = "Entrance to the Search Room";
	captionArray[captionNum++] = "County Clerk Tom Clingan welcomes you";
	captionArray[captionNum++] = "Hall of Records Search Room";
	captionArray[captionNum++] = "Hall of Records Search Room";
	captionArray[captionNum++] = "Hall of Records Warehouse";
	captionArray[captionNum++] = "Records to be cleaned and processed for storage";
	captionArray[captionNum++] = "Deputy Director Craig Carlson cleaning records";
	captionArray[captionNum++] = "John Esek preparing records for microfilming";
	captionArray[captionNum++] = "Bob McDonald retrieving an agency request";
	captionArray[captionNum++] = "John Paul Ciejka retrieving a research request";
	captionArray[captionNum++] = "An interested researcher";
	captionArray[captionNum++] = "Another interested researcher";
	captionArray[captionNum++] = "Deputy Director Craig Carlson conducting a workshop";

var totalItems = 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 getNextImage() {
		if (random_display) {
			imageNum = randNum(0, totalItems-1);
		}
		else {
			imageNum = (imageNum+1) % totalItems;
		}

 	var new_image = get_ImageItemLocation(imageArray[imageNum]);
	return(new_image);
	}

	function getPrevImage() {
		imageNum = (imageNum-1) % totalItems;
		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+"')";
		imageTimer = setTimeout(recur_call, interval);
        }


	function getNextCaption() {
		if (random_display) {
			captionNum = imageNum;
		}
		else {
			captionNum = imageNum;
		}

 	var new_caption = (captionArray[captionNum]);
	return(new_caption);
	}

	function getPrevCaption() {
		captionNum = (captionNum-1) % totalItems;
		var new_caption = (captionArray[captionNum]);
		return(new_caption);
	}

	function prevCaption(place) {
		var new_caption = getPrevCaption();
		document.getElementById("captionText").innerHTML = new_caption;
	}

	function switchCaption(place) {
		var new_caption = getNextCaption();
		document.getElementById("captionText").innerHTML = new_caption;
		var recur_call = "switchCaption('"+place+"')";
		captionTimer = setTimeout(recur_call, interval);
        }