var interval = 2.5; // 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("data/stage/02.jpg");
		image_list[image_index++] = new imageItem("data/stage/03.jpg");
		image_list[image_index++] = new imageItem("data/stage/04.jpg");
		image_list[image_index++] = new imageItem("data/stage/05.jpg");
		image_list[image_index++] = new imageItem("data/stage/06.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) {
		var new_image = getNextImage();
		document[place].src = new_image;
		var recur_call = "rotateImage('"+place+"')";
		setTimeout(recur_call, interval);
		}
		
		window.onload = function(){
			rotateImage('rImage');
		}