// Copyright (c) 2003,2004,2005 Juraj Kolesár <koli@koli.sk>               
int lt_s_item_data_init(T_ITEM *item);
int lt_s_item_data_clear(T_ITEM *item);

int lt_s_item_data_get(T_DB *tdb, T_ITEM *item);
int lt_s_item_data_set(T_DB *tdb, T_ITEM *item);
int lt_s_item_data_remove(T_DB *tdb, T_ITEM *item);

int lt_s_item_qs_init(T_ITEM *item, T_COLS **cols, T_QS *qs);
int lt_s_item_qs_overview(T_QS *qs);

int lt_s_item_next_number(T_DB *tdb, T_ITEM *item);
int lt_s_item_get_codes(T_DB *tdb, T_MATRIX *matrix);
int lt_s_item_get_messures(T_DB *tdb, T_MATRIX *matrix);