var randomnumber = Math.floor(Math.random() * 99999999999); document.write("<a href='http://d1.openx.org/ck.php?n=a6c2731a&cb= + randomnumber); document.write("'><img src='http://d1.openx.org/avw.php?zoneid=232314&n=a6c2731a&cb=" + randomnumber); document.write("'></a>");