var preloadFlag = false;

function newImg(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
		}
	}
	
function swapImg(imgID,imgSource) {
	if (document.images) {
		document.images[imgID].src = imgSource;
		}
	}

function preloadImages(root) {
	if (document.images && (preloadFlag == false)) {
		pre00 = newImg(root+"/images/thumb/booth-ov.jpg");
		pre01 = newImg(root+"/images/thumb/bubblewand-ov.jpg");
		pre02 = newImg(root+"/images/thumb/eyewire012202-ov.jpg");
		pre03 = newImg(root+"/images/thumb/eyewire012212-ov.jpg");
		pre04 = newImg(root+"/images/thumb/eyewire012543-ov.jpg");
		pre05 = newImg(root+"/images/thumb/eyewire012561-ov.jpg");
		pre06 = newImg(root+"/images/thumb/finalblitz-ov.jpg");
		pre07 = newImg(root+"/images/thumb/goldbat-ov.jpg");
		pre08 = newImg(root+"/images/thumb/hospital-ov.jpg");
		pre09 = newImg(root+"/images/thumb/kettlevalley-ov.jpg");
		pre10 = newImg(root+"/images/thumb/lampsurgery-ov.jpg");
		pre11 = newImg(root+"/images/thumb/saanich-ov.jpg");
		pre12 = newImg(root+"/images/thumb/techbclightbulb-ov.jpg");
		pre13 = newImg(root+"/images/thumb/tinfoilhat-ov.jpg");
		pre14 = newImg(root+"/images/thumb/wateringcan-ov.jpg");
		pre15 = newImg(root+"/images/thumb/breadgarden-ov.jpg");
		pre16 = newImg(root+"/images/thumb/broccopops-ov.jpg");
		pre17 = newImg(root+"/images/thumb/klassen-ov.jpg");
		pre18 = newImg(root+"/images/thumb/lwfish-ov.jpg");
		pre19 = newImg(root+"/images/thumb/lwpierre-ov.jpg");
		pre20 = newImg(root+"/images/thumb/lwpigs-ov.jpg");
		pre21 = newImg(root+"/images/thumb/mckinnyrd-ov.jpg");
		pre22 = newImg(root+"/images/thumb/orchard-ov.jpg");
		pre23 = newImg(root+"/images/thumb/orchardladder-ov.jpg");
	preloadFlag = true;
		}
	}



/*

var interval = 2.5;
var random_display = 0;
var image_index = 0;
interval *= 1000;

image_list = new Array();
image_list[image_index++] = new imageItem("");
image_list[image_index++] = new imageItem("");
image_list[image_index++] = new imageItem("");
image_list[image_index++] = new imageItem("");
image_list[image_index++] = new imageItem("");
var number_of_image = image_list.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 generate(x, y) {
	var range = y - x + 1;
	return Math.floor(Math.random() * range) + x;
	}

function getNextImage() {
	if (random_display) {
		image_index = generate(0, number_of_image-1);
	} else {
		image_index = (image_index+1) % number_of_image;
	}
	var new_image = get_ImageItemLocation(image_list[image_index]);
	return(new_image);
	}

function rotateImage(place) {
	var new_image = getNextImage();
	document[place].src = new_image;
	var recur_call = "rotateImage('"+place+"')";
	setTimeout(recur_call, interval);
	}

*/