src = ["/images/sponsors/1.jpg", "/images/sponsors/2.jpg", "/images/sponsors/3.jpg", "/images/sponsors/4.jpg", "/images/sponsors/5.jpg"]
/* url = ["http://www.google.it","http://www.google.it","http://www.google.it","http://www.google.it","http://www.google.it"]   
*/
duration = 2;

ads=[]; ct=0;
function switchAd() {
var n=(ct+1)%src.length;
if (ads[n] && (ads[n].complete || ads[n].complete==null)) {
document["Imagine_parteneri"].src = ads[ct=n].src;
}
ads[n=(ct+1)%src.length] = new Image;
ads[n].src = src[n];
setTimeout("switchAd()",duration*1000);
}

function doLink(){
location.href = url[ct];
} onload = function(){
if (document.images)
switchAd();
}