//set image paths
var src = ["/images/partners/pfi.jpg", "/images/partners/everest.jpg", "/images/partners/ipsb.jpg", "/images/partners/nesta.gif", "/images/partners/propta.gif", "/images/partners/scuhs.jpg", "/images/partners/nasn.gif", "/images/partners/enw.gif"]

//set corresponding urls
var url = ["/professional-fitness-institute/default.aspx", "/everest-college/default.aspx", "/ipsb/default.aspx", "/nesta/default.aspx", "/propta/default.aspx", "/scuhs/default.aspx", "/nasn/default.aspx", "/excercise-nutrition-works/default.aspx"]

//set duration for each image
var duration = 4;

var ads=[]; 
var 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];
}