var interval = 10; // delay between rotating images (in seconds)
	var random_display = 1; // 0 = no, 1 = yes
	interval *= 1000;

	var image_index = 0;
	imagesAndTextsList = new Array();
	var number_of_image = 0;
	
	function initImageRotator(list, eltName) {
		for (i = 0 ; i < list.length ; i++) {
			imagesAndTextsList[i] = [new imageItem(list[i][0]), list[i][1], list[i][2]];
		}
		number_of_image = imagesAndTextsList.length;
		rotateImage(eltName);
	}
	
	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 getNextImageAndText() {
		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(imagesAndTextsList[image_index][0]);
		var new_text = imagesAndTextsList[image_index][1];
		var new_link = imagesAndTextsList[image_index][2];
		return([new_image, new_text, new_link]);
	}
	
	function rotateImage(place) {
		var new_image_text_link = getNextImageAndText();
		document[place].src = new_image_text_link[0];
		if ((new_image_text_link[1] != null) && (new_image_text_link[1] != "")) {
			document.getElementById("productDiscountDisplay").innerHTML = new_image_text_link[1];
			document.getElementById("productDiscountLink").href = new_image_text_link[2];
			document.getElementById("productDiscountDisplay").style.visibility = "visible";
		} else {
			document.getElementById("productDiscountDisplay").style.visibility = "hidden";
		}
		var recur_call = "rotateImage('"+place+"')";
		setTimeout(recur_call, interval);
	}