static function change_read($note, $side = "_gestion")
 {
     global $dbh;
     $read = demandes_notes::read($note, $side);
     $value = "";
     if ($read) {
         $value = 1;
     } else {
         $value = 0;
     }
     $query = "UPDATE demandes_notes SET notes_read" . $side . "=" . $value . " WHERE id_note=" . $note->id_note;
     if (pmb_mysql_query($query, $dbh)) {
         return true;
     } else {
         return false;
     }
 }