var how_many_ads = 6;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;

if (ad==1)
{
	id="1";
	url="www.observingstars.com/banner.htm";
	alt="become a sponsor";
	img="banner.jpg";
	width="360";
	height="60";
	border="0";
}

if (ad==2)
{
	id="3";
	url="www.ggwire.com";
	alt="G&G Wire Products Custom Display Racks";
	img="ggwire.jpg";
	width="360";
	height="80";
	border="0";
}

if (ad==3)
{
	id="4";
	url="www.jpohanlons.com";
	alt="J.P.O'Hanlons Irish Restaurant & Pub";
	img="hanlonlogo.jpg";
	width="360";
	height="100";
	border="0";
}

if (ad==4)
{
	id="5";
	url="www.shelburnefarm.com";
	alt="Shelburne Farms pick your own apples";
	img="shelburne.jpg";
	width="360";
	height="114";
	border="0";
}

if (ad==5)
{
	id="6";
	url="www.nelliesniche.com";
	alt="Nellie's Niche";
	img="nellies.jpg";
	width="360";
	height="100";
	border="0";
}

if (ad==6)
{
	id="6";
	url="www.nelliesniche.com";
	alt="Nellie's Niche";
	img="nellies.jpg";
	width="360";
	height="100";
	border="0";
}

	
document.write("<a href=http://www.observingstars.com/cgi-bin/banners/banners.pl?id=" + id + "&url=" + url +">");
document.write("<img src=http://www.observingstars.com/banners/" + img + " border=" + border + " width=" + width + " height=" + height + " alt='" + alt + "'>");
document.write("</a>");