function gaParseCookie()
 {
     if (isset($_COOKIE['_ga'])) {
         list($version, $domainDepth, $cid1, $cid2) = explode('.', $_COOKIE["_ga"]);
         $contents = array('version' => $version, 'domainDepth' => $domainDepth, 'cid' => $cid1 . '.' . $cid2);
         $cid = $contents['cid'];
     } else {
         $cid = gaGenUUID();
     }
     return $cid;
 }
function getUACookie()
{
    if (isset($_COOKIE['__uasearchcid'])) {
        return $_COOKIE['__uasearchcid'];
    } else {
        $newcid = gaGenUUID();
        setcookie('__uasearchcid', $newcid, time() + 86400 * 365 * 2);
        // 86400 = 1 day
        return $newcid;
    }
}