var i = 6;// Number of banners that you have

banner1 = new Image();
banner1.src = "images/ads/fredc.jpg"; 
banner2 = new Image();
banner2.src = "images/ads/ad13.jpg";
banner3 = new Image();
banner3.src = "images/ads/adMiller.jpg";
banner4 = new Image();
banner4.src = "images/ads/ad15.jpg";
banner5 = new Image();
banner5.src = "images/ads/ad17.jpg";
banner6 = new Image();
banner6.src = "images/ads/ad_hillbank.jpg";

//you may add as many as needed
links = new Array
links[1] = "";
links[2] = "http://www.cobraaccessories.com";
links[3] = "";
links[4] = "http://www.firestone.com";
links[5] = "";
links[6] = "http://www.hillbankmotorsports.com/";

//be sure to ad message numbers consecutively 
function randombanner() {
	var randomnumber = Math.random();
	i = Math.round( (i - 1) * randomnumber) + 1;
	document.getElementById('SponsorAd').src = eval("banner" + i + ".src");
}
function startTime() {
	var time= new Date();
	hours= time.getHours();
	mins= time.getMinutes();
	secs= time.getSeconds();
	closeTime=hours*3600+mins*60+secs;
	closeTime+=10;	// How many seconds until the next banner rotation
	Timer();
}

function Timer() {
	var time= new Date();
	hours= time.getHours();
	mins= time.getMinutes();
	secs= time.getSeconds();
	curTime=hours*3600+mins*60+secs
	if (curTime>=closeTime) {
		if (i < 6) {	// The number 10 is the amount of banners that you have above - adjust accordingly
			i++;
			document.getElementById('SponsorAd').src = eval("banner" + i + ".src");
		}
		else {
			i = 1;
			document.getElementById('SponsorAd').src = eval("banner" + i + ".src");
		}
		startTime();
	}
	else{
		window.setTimeout("Timer()",1000);
	}
}
	
function clickLink() {
	window.open(links[i],'SponsorLink');
}

function init () {
	randombanner();
	startTime();
	P7_ExpMenu();
}

window.onload = init;