asking 4 username n password b4 updating a form

[anilla]

in order to access my system, users have to log in using username and password. i have a form where users can update or delete certain information. these information currently can be deleted or updated by any user who logs into my system. which means that one user can update or delete the information of another user. what should i do so that when a user clicks the update or delet button, he or she is prompted with a message box asking for username and password. and if that passowrd and usename matches the log in username and password, only then they are allowed to update or delet the information. plzzzz help me....

[dhavalshreyas]

the simplest way I'd say is ask for user name and password at the same time as the user is editing the info..........a nd then just before updating the database just check with your user database whether the login info is accurate....... .