function getCookie(param) {
  var value = "";
  if(document.cookie) {
    var start = document.cookie.indexOf(param + "=") + param.length + 1;
    if (start > param.length) {
      var end = document.cookie.indexOf(";", start);
      if (end == -1)
        end = document.cookie.length;
      value = document.cookie.substring(start, end);
    }
  }
  return value;
}

function setCookie(param, value) {
  var expire = new Date();
  expire = new Date(expire.getTime() + 2419200000);
  document.cookie = param + "=" + value + "; expires=" + expire.toGMTString() + ";";
}