function count_rranking_ex() {
  if(!document.referrer.match(/^http:\/\//)){
    return true;
  }
  var referer = document.referrer;
  var host = rranking_ex["host"];
  var code = rranking_ex["code"];
  var src  = 'http://' + host + '/in/' + code + "?";
  src += "referer=" + escape(referer);
  var tag = '<img src="' + src +  '" style="border:none;margin:0;padding:0;" />';
  document.write(tag);
}

count_rranking_ex();