var image_index = 0;
image_list = new Array();
image_list[image_index++] = new imageItem("Images/cappuccino_js.jpg", "Ita/Prodotti/Servizi.html");
image_list[image_index++] = new imageItem("Images/materiaprima_js.jpg", "Ita/Azienda/Produzione/Materia_Prima.html");
image_list[image_index++] = new imageItem("Images/prodottiottolina_js.jpg", "Ita/Prodotti/Caffe/Professionali.html");
image_list[image_index++] = new imageItem("Images/torrefazione_js.jpg", "Ita/Azienda/origini.html");
image_list[image_index++] = new imageItem("Images/logo_js.jpg", "Ita/Info/contatti.html");

var interval = 3; // delay between rotating images (in seconds)
var random_display = 1; // 0 = no, 1 = yes
var number_of_image = image_list.length;
interval *= 1000;
var image_index = 0;


function imageItem(image_location, link) {

	this.image_item = new Image();
	this.image_item.src = image_location;
	this.image_item.link = link;
}

function getNextImage() {

	if (random_display) { //random image rotation
		image_index = Math.floor(Math.random() * image_list.length);
	}
	else { //sequential image rotation
		if (image_index > number_of_image) {
			image_index = 1;		
		}
		else {
			image_index = image_index + 1;
		}
	}
	var new_image = image_list[image_index];
	return(new_image);
}


function rotateImage(rImage, link) {

	var new_image = getNextImage();
	document.getElementById("rImage").src = new_image.image_item.src;
	document.getElementById("rLink").href = new_image.image_item.link;

	setTimeout("rotateImage()", interval);
}