if(document.referrer!="" && document.cookie.indexOf("referrer=")==-1){
var date = new Date();
date.setTime(exp.getTime() + (120*24*60*60*1000));
var refdate = new Date();
document.cookie = "referrer=" + escape(document.referrer + "***" + refdate.toGMTString()) + "; expires=" + exp.toGMTString() + "; path=/;"
}