text = new Array(2);


text[0] = "<a target='_blank' rel='nofollow' class='mainlevel-nav' href = 'http://www.lynxtrack.com/afclick.php?o=9496&b=18g9chdp&p=31435&l=1&s=iphone'>Free IPhone 3GS</a>";
text[1] = "<a target='_blank' rel='nofollow' class='mainlevel-nav' href = 'http://www.lynxtrack.com/click/scD9sMWsdhrstLzDfy70/s-ipad'>Free IPad</a>";

index = Math.floor(Math.random() * text.length);
document.write(text[index]);