var openInNewWin = true;
var banners = new Array();
banners[0] = new Banner("http://www.rainstars.net/sponsor_rs.html", "Diventa Partner/Sponsor di RainStars", "http://www.rainstars.net/images/b/spazio_cinemateatro.jpg");
banners[1] = new Banner("http://www.rainstars.net/canale/letteratura_poesia/concorso.html", "Concorso di Poesia 2012", "http://www.rainstars.net/images/concorsi/poesia2012.jpg");

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>");