url = ["", "", "", ""]
duration = 4;

//Please do not edit below
ads=[]; ct=0;
function switchAd() {
	var n=(ct+1)%src.length;
	if (ads[n] && (ads[n].complete || ads[n].complete==null)) {
		document["Ad_Image"].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();
}