<?php

$username = "bruker";
$password = "hei";
$operation = $_GET['do'];
$input_username = $_POST['username'];
$input_password = $_POST['password'];

if ($operation == login) {

	if ($input_username && $input_password) {

		if ($input_username == $username && $input_password == $password) {

			redirect("../index.html");

		} else { echo "feil brukernavn/passord"; }

	} else { echo "Du må fylle inn både brukernavn og passord"; }

} else {
?>
<form method="POST" action="index.php?do=login">
  Username: <input type="text" name="username" size="15" /><br />
  Password: <input type="password" name="password" size="15" /><br />
  <div align="center">
    <p><input type="submit" value="Login" /></p>
  </div>
</form>
<?php
}

?>