var cDomain = self.location.hostname;

if(cDomain.indexOf(".") < cDomain.lastIndexOf(".")) {
  var domainOffset = cDomain.indexOf(".")+1
  cDomain = cDomain.substr(domainOffset);
}

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

var allCookies = document.cookie;
var cPos = allCookies.indexOf("referrer=");

if(cPos != -1) {
  var cdstart = cPos + 9;
  var cdend = allCookies.indexOf(";", cdstart);
  
  if(cdend == -1) cdend = allCookies.length;

  var cookieContent = allCookies.substring(cdstart,cdend);
  cookieContent = unescape(cookieContent);
  var cdatestart = cookieContent.indexOf("&&&", 0);
  var cdateend = cookieContent.length;
  var cRefer = cookieContent.substring(0,cdatestart);
  var cDateRef = cookieContent.substring(cdatestart +2,cdateend);
}

else{
  var cRefer = "No cookie";
  var cDateRef = "No cookie";
}