PTKBase.xxxPortal.mail_password_form
Documentation
Display a form that allows a user to request to have their password
mailed to them. The form collects a variable, 'forgotten_username'.
The action of the form is mail_password.
It might be interesting to set a permanent cookie with the user name
that allows the user to not type a user name.
Sample
Don't panic! Just enter your username below,
click Send, and your password
will be mailed to you, if you gave a
valid email address when you signed on.