function select($where = "", $group_by = "", $order_by = "", $limit = "")
 {
     global $client;
     if ($where != "") {
         $where = $where . " AND idclient = '" . Contenido_Security::escapeDB($client, NULL) . "'";
     }
     return parent::select($where, $group_by, $order_by, $limit);
 }
 function select($where = "", $group_by = "", $order_by = "", $limit = "")
 {
     global $client;
     return parent::select($where, $group_by, $order_by, $limit);
 }