function setCookie(name, value, expires, path, domain, secure)
{
  document.cookie =
    name+"="+escape(value)+
    (expires ? "; expires="+expires.toGMTString() : "")+
    (path    ? "; path="   +path   : "")+
    (domain  ? "; domain=" +domain : "")+
    (secure  ? "; secure" : "");
}

function getCookie(name)
{
  var cookie, offset, end;
  cookie  = " "+document.cookie;
  offset  = cookie.indexOf(" "+name+"=");
  if (offset == -1) return undefined;
  offset += name.length+2;
  end     = cookie.indexOf(";", offset)
  if (end    == -1) end = cookie.length;
  return unescape(cookie.substring(offset, end));
}