var openInNewWin = true;

var banners = new Array();
banners[0] = new Banner("http://www.esplodem.it", "ESPLODEM Service - Demolizioni tecniche con esplosivo", "images/banner_esplodem.gif");
banners[1] = new Banner("http://www.geotaglio.it", "Interventi Speciali", "images/geotaglio_468x60.gif");

function Banner(url, description, image) {
	this.url = url;
	this.description = description;
	this.image = image;
	return this;
}
var bNum = Math.round(Math.random() * (banners.length - 1));


document.write("<a href=\"" + banners[bNum].url + "\"");
if (openInNewWin) {
	document.write(" target=\"_blank\"");
}
document.write(">");
document.write("<img src=\"" + banners[bNum].image + "\" border=\"0\" alt=\"" + banners[bNum].description + "\">");
document.write("</a>");