public static function deleteById($ID = NULL)
 {
     $result = EJHSJournalArticle::queryOneById($ID);
     $row = mysql_fetch_array($result, MYSQL_ASSOC);
     EJHSJournalArticle::deleteUpload($row['upload_location'], $row['upload_name']);
     if (EJHSJournalArticle::checkIfUploadExists($row['upload_location'], $row['upload_name'])) {
         EJHSJournalArticle::deleteUpload($row['upload_location'], $row['upload_name']);
     }
     $query = "DELETE FROM journal_article WHERE id = '{$ID}'";
     $result = mysql_query($query) or die('Error : ' . mysql_error());
     if ($result) {
         return TRUE;
     } else {
         return FALSE;
     }
 }