break;
 case 'last_words':
     if (!$nb_per_page) {
         $nb_per_page = $nb_per_page_search;
     }
     $tri = " id_mot desc";
     break;
 case 'calculate':
     if ($nb_noti) {
         $rqt = "select count(notice_id) from notices";
         $execute_query = pmb_mysql_query($rqt);
         $r = pmb_mysql_fetch_array($execute_query);
         $pmb_nb_noti_calc_empty_words = $nb_noti;
         @pmb_mysql_query("update parametres set valeur_param='" . $nb_noti . "' where type_param='pmb' and sstype_param='nb_noti_calc_empty_words'");
         $nb_noti = floor($r[0] * $nb_noti / 100);
         semantique::calculate_empty_words($nb_noti);
         semantique::gen_table_empty_word();
     }
     break;
 case 'del':
     if ($id_mot && $type_lien) {
         @pmb_mysql_query("delete from linked_mots where num_mot=" . $id_mot . " and num_linked_mot=0 and type_lien=" . $type_lien);
         $rqt = "select num_mot from linked_mots where num_mot=" . $id_mot . " or num_linked_mot=" . $id_mot;
         $query_exist = pmb_mysql_query($rqt);
         if ($query_exist && !pmb_mysql_num_rows($query_exist)) {
             @pmb_mysql_query("delete from mots where id_mot=" . $id_mot);
         }
         semantique::gen_table_empty_word();
     }
     break;
 default: