<!-- Begin
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="#";    
alt="";
banner="images/banner-01.jpg";    
width="405";    
height="104";      
}
if (ad==2) {                        
url="#";    
alt="";
banner="images/banner-02.jpg";    
width="405";    
height="104";      
}
if (ad==3) {                        
url="#";    
alt="";
banner="images/banner-03.jpg";    
width="405";    
height="104";      
}
document.write('<img src=\"' + banner + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('alt=\"' + alt + '\" border=0>');
// End -->