var how_many_ads = 2;  
var now = new Date()  
var sec = now.getSeconds()  
var ad = sec % how_many_ads;  
ad +=1;  
if (ad==1) {  
document.write('<a href="http://www.gaz.co.kr/rd.php?pid=supermok&val=movie^intro&pop=yes&layer=no" target=_blank><img src="/banner/400/gaz.gif" width="400" height="100" border="0"></a>')
}  
if (ad==2) {  
document.write('<a href="http://wowdisk.com/ptns/gate/bnr.di?id=supermok&mode=B&mflag=Y" target=_blank><img src="/banner/400/wow.gif" width="400" height="100" border="0"></a>')
}