function getCookie(name) 
{
    var nameequals = name + "=";
    var beginpos = 0;
    var beginpos2 = 0;
    while (beginpos < document.cookie.length) 
    { 
        beginpos2 = beginpos + name.length + 1;
        if (document.cookie.substring(beginpos, beginpos2) == nameequals) 
        { 
  var endpos = document.cookie.indexOf (";", beginpos2);
  if (endpos == -1) 
      endpos = document.cookie.length;
  return unescape(document.cookie.substring(beginpos2, endpos));
        }
        beginpos = document.cookie.indexOf(" ", beginpos) + 1;
        if (beginpos == 0) 
  break;
    }
    
    return null;
}