var how_many_ads = 2;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) {
url="http://www.monroecountychamber.org/new/pages/banners02.htm";
alt="Chamber Members!  Advertise your Business or Upcoming Event Here!  6 Months or 1 Year!";
banner="http://www.monroecountychamber.org/banners/advertise01.jpg";
width="640";
height="80";
}
if (ad==2) {
url="http://www.monroecountychamber.org/new/pages/dining.htm";
alt="View, Print, or Download Monroe County Area Restaurant Menus!";
banner="http://www.monroecountychamber.org/banners/menus.jpg";
width="640";
height="80";
}

document.write('<a href=\"' + url + '\" target=\"_blank\">');
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0></a>');