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.myspace.com/sothis";
alt="SOTHIS"; 
banner="images/banners/bannerads/sothis468x60.gif"; 
width="468"; 
height="60"; 
}

if (ad==2) { 
url="http://www.streetfightersinc.com";
alt="Street Fighters Inc."; 
banner="images/banners/bannerads/StreetFighterInc.jpg"; 
width="468"; 
height="60"; 
}

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