// JavaScript Document
var interval = 3; // delay between rotating images (in seconds)
	var random_display = 1; // 0 = no, 1 = yes
	interval *= 1000;
	
	var image_index = 0;
	image_list = new Array();
	image_list[image_index++] = new imageItem("/Portals/0/01.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/02.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/03.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/04.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/05.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/06.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/07.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/08.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/09.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/10.jpg");
	image_list[image_index++] = new imageItem("/Portals/0/11.jpg");
	
	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) {
		if(document[place]){
			var new_image = getNextImage();
			document[place].src = new_image;
			var recur_call = "rotateImage('"+place+"')";
			setTimeout(recur_call, interval);
		}
	}