var how_many_ads = 3; 
var now = new Date()
var sec = now.getSeconds() 
var ad = sec % how_many_ads; 
ad +=1; 
if (ad==1) { 
url="http://surveyscb.com/surveys_checks.htm"; 
alt="Get Paid To Take Surveys"; 
banner="http://surveyscb.com/images/125surveys4checks.gif"; 
width="125"; 
height="125"; 
}
if (ad==2) { 
url="http://surveyscb.com/make_money_taking_surveys.htm"; 
alt="Make Money Taking Surveys"; 
banner="http://surveyscb.com/images/125makemoneytakingsurveys.gif"; 
width="125"; 
height="125";
}
if (ad==3) { 
url="http://surveyscb.com/express_paid_surveys.htm"; 
alt="Express Paid Surveys"; 
banner="http://surveyscb.com/images/125expresspaidsurveys.gif"; 
width="125"; 
height="125";
}
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>');