public static function deletePost($sApiKey, $iJournalEntryId, $sUserName, $sPassword)
 {
     if (!self::checkLogin($sUserName, $sPassword)) {
         return self::loginError();
     }
     $oJournalEntry = JournalEntryPeer::retrieveByPk($iJournalEntryId);
     if ($oJournalEntry === null) {
         return self::error("No Entry with id {$iJournalEntryId}", 2);
     }
     return $oJournalEntry->delete();
 }