validation

related page:book.asp, bookingprocess.asp, cancel.asp
1. if booking made is the same date & time with the current booked date & time then alert()
2. day and month validation
3. once cancel, y all data in booking will be deleted?line 23, cancel.asp
4. confusing in asset_info [available & out]
5. report cannot be generated

related page:search.asp, book.asp
6. calculation for the total in and total out

related page:update.asp
7. delete bttn