public static function addOfflineAchievement($userID, $achievementName, $achievementLevel)
{
$params = array();
$params['achievement_name'] = $achievementName;
$params['achievement_level'] = $achievementLevel;
$params['user_id'] = $userID;
$success = ConnectionFactory::InsertOnDuplicateKeyUpdateAbsolute("offline_achievements", $params, "achievement_level", $achievementLevel);
}
