How to automate Ie?

[E1M1]

How to edit this script to fill all fields on http://autoit.pri.ee/test/saada_e-kiri.php

#include <IE.au3>
; Create a browser window and navigate to hotmail
$oIE = _IECreate ("http://autoit.pri.ee/test/saada_e-kiri.php")

; get pointers to the login form and username, password and signin fields
$o_form = _IEFormGetObjByName ($oIE, "f1")
$o_login = _IEFormElementGetObjByName ($o_form, "login")
$o_password = _IEFormElementGetObjByName ($o_form, "passwd")
$o_signin = _IEFormElementGetObjByName ($o_form, "SI")

$username = "your username here"
$password = "your password here"

; Set field values and submit the form
_IEFormElementSetValue ($o_login, $username)
_IEFormElementSetValue ($o_password, $password)
_IEAction ($o_signin, "click")

[BrettF]

Can I ask what the intention is?