var how_many_ads = 4
var now = new Date() 
var sec = now.getSeconds() 
var ad = sec % how_many_ads; 
ad +=1; 
 
if (ad==1){ 
url="homepage.asp"; 
alt="Rongxin Retail Brand Design Organization";  
banner="images/main_1.jpg"; 
width="760"; 
height="300"; 
} 

if (ad==2) {   
url="homepage.asp"; 
alt="Rongxin Retail Brand Design Organization";  
banner="images/main_2.jpg"; 
width="760"; 
height="300";  
} 
  
if (ad==3) { 
url="homepage.asp"; 
alt="Rongxin Retail Brand Design Organization";  
banner="images/main_3.jpg"; 
width="760"; 
height="300"; 
}

if (ad==4) { 
url="homepage.asp"; 
alt="Rongxin Retail Brand Design Organization";  
banner="images/main_4.jpg"; 
width="760"; 
height="300"; 
}

if (ad==5) { 
url="homepage.asp"; 
alt="Rongxin Retail Brand Design Organization";  
banner="images/main_5.jpg"; 
width="760"; 
height="300"; 
}

  
document.write('<a href=\"' + url + '\">'); 
document.write('<img class="corner iradius10"  src=\"' + banner + '\" width=') 
document.write(width + ' height=' + height + ' '); 
document.write('alt=\"' + alt + '\" border=0>');