//slideshow from webmonkey.com
//set interval for slide show speed (milliseconds)
	var interval = 5000;
//	
// set random or sequential 0=sequential, 1=random
	var random_display = 0;
	var imageDir = "../images/photos/galleries/mainpage/images/";
//	
//make array
	var imageNum = 0;
	imageArray = new Array();
	imageArray[imageNum++] = new imageItem(imageDir + "00.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "01.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "02.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "03.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "04.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "05.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "06.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "07.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "08.jpg");
	imageArray[imageNum++] = new imageItem(imageDir + "09.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");
					
//find array length
	var totalImages = imageArray.length;

//find image location
		function imageItem(image_location) {
		this.image_item = new Image();
		this.image_item.src = image_location;
	}
	function get_ImageItemLocation(imageObj) {
		return(imageObj.image_item.src)
	}
	
//random function	
	function randNum(x, y) {
		var range = y - x + 1;
		return Math.floor(Math.random() * range) + x;
	}

//get next image
	function getNextImage() {
		if (random_display) {
			imageNum = randNum(0, totalImages-1);
		}
		else {
			imageNum = (imageNum+1) % totalImages;
		}

//return image value
 	var new_image = get_ImageItemLocation(imageArray[imageNum]);
	return(new_image);
	}
	
function getPrevImage() {
ImageNum = (ImageNum-1) % number_of_image;
var new_image = get_ImageItemLocation(imageArray[ImageNum]);
return(new_image);
}
 
function prevImage(place) {
var new_image = getPrevImage();
document[place].src = new_image;
}
 
function rotateImage(place) {
var new_image = getNextImage();
document[place].src = new_image;
var recur_call = "rotateImage('"+place+"')";
timerID = setTimeout(recur_call, interval);
}