function GetCookie(name) {
 var result = null;
 var myCookie = " " + document.cookie + ";";
 var searchName = " " + name + "=";
 var startOfCookie = myCookie.indexOf(searchName);
 var endOfCookie;
 if (startOfCookie != -1) {
  startOfCookie += searchName.length;
  endOfCookie = myCookie.indexOf(";", startOfCookie);
  result = unescape(myCookie.substring(startOfCookie, endOfCookie));
 }
 return result;
}