var how_many_ads = 5;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) {
txt="";
url="";
alt="";
banner="http://www.activebit.com/banners/banner-1.gif";
width="518";
height="130";
}
if (ad==2) {
txt="";
url="";
alt="";
banner="http://www.activebit.com/banners/banner-2.gif";
width="518";
height="130";
}
if (ad==3) {
txt="";
url="";
alt="";
banner="http://www.activebit.com/banners/banner-3.gif";
width="518";
height="130";
}
if (ad==4) {
txt="";
url="";
alt="";
banner="http://www.activebit.com/banners/banner-4.gif";
width="518";
height="130";
}
if (ad==5) {
txt="";
url="";
alt="";
banner="http://www.activebit.com/banners/banner-5.gif";
width="518";
height="130";
}