window title for password entry

[James Hong]

Hi
I would like to change the window title for password entry from PIDGIN 
to something unique to (eg, "enter password")
I have looked the line 1118 at account.c
    purple_request_fields(account,
                        NULL,
                        primary,
                        NULL,
                        fields,
                        _("OK"), ok_cb,
                        _("Cancel"), cancel_cb,
                        account, NULL, NULL,
                        user_data);


and tried to change NULL to other strings but it doesnt seems to affect 
the window title.

Can anyone provide me a light on this ?
Thanks
James H