Insert error message for login screen

[kira_whopper]

Hi o/

I'm trying to insert a code to show into Access Point Login Screen when the user type the password incorrect ou leave it blank.

I tried to found something into FormLogin.htm and Login.js, but couldn't manage do change something as I wished.

The current login screen simply resets the typed user and password or doesn't do nothing if the fields are blank.any

A simple alert in jscript should do the job, but I'm having trouble finding the right function to put that alert.

Any ideas?