var how_many_ads = 6;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % how_many_ads;
ad +=1;
if (ad==1) {
url="http://www.madmanaudio.com/shure-srh440-p-2450.html";
alt="madman 1";
banner="http://www.5chicago.com/campaigns/madman-shure-300.jpg";
width="300";
height="300";
}
if (ad==2) {
url="http://www.madmanaudio.com/pioneer-hdj2000-headphones-p-2178.html";
alt="madman 2";
banner="http://www.5chicago.com/campaigns/madman-pioneer-300.jpg";
width="300";
height="300";
}
if (ad==3) {
url="http://www.boomboomroomchicago.com/";
alt="boom boom room chicago";
banner="http://www.5chicago.com/campaigns/bbr-1-300.jpg";
width="300";
height="300";
}
if (ad==4) {
url="http://www.boomboomroomchicago.com/";
alt="boom boom room chicago";
banner="http://www.5chicago.com/campaigns/bbr-2-300.jpg";
width="300";
height="300";
}
if (ad==5) {
url="http://www.5chicago.com/";
alt="addicted to house at the zone";
banner="http://www.5chicago.com/campaigns/addicted-300.jpg";
width="300";
height="300";
}
if (ad==6) {
url="http://www.yoroc.com/";
alt="quench at detox ultra lounge";
banner="http://www.5chicago.com/campaigns/quench-300.jpg";
width="300";
height="300";
}

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