hii, i'll try develop my library using your application
i already make borrow_table (contain userid, username, bookid, borrowdate, title, return) and return_table (contain userid, username, bookid, title, borrowdate, returndate, fee)
for borrow_table :
if click on bookid (select type) automatically it show title
for return_table :
if click on userid automatically show bookid, title and borrowdate from borrow_table
aftergive value returndate(date widget) automatically give value = returndate - borrowdate to fee
after click save automatically give value Y to return on borrow_table
thank's
