Restricting browser's a password manager pop-up

Hi, Is there a way to restrict a password manager ("Save password for this site...") window pop-up? I have a form which shows a user a lost login if correct password and some other data was provided and browser asks user if it is necessary to save this password entry. Obviously, there is no need to save any password in this case and I want to avoid this dialog appear. Is it possible? Thanks in advance. Michael