registration redirect control

hi all,
I am trying to implement user registration redirect,I am using wp registration process on my custom page,
here is my code for registration form

<form action="<?php echo site_url('wp-login.php?action=register', 'login_post') ?>" method="post">
<input type="text" name="user_login" value="" id="user_login" class="input" />
<input type="text" name="user_email" value="" id="user_email" class="input"  />
<?php do_action('register_form'); ?>
<input type="submit" value="Register" id="register" />
<input type="hidden" name="redirect_to" value="<?php bloginfo('url'); ?>"/>
<p class="statement">A password will be e-mailed to you.</p>
</form>

and this function I placed in my function.php

add_action('registration_redirect','myfunc');
function myfunc($user_email, $user_login,10,3)
{
	if(!($user_email))

	{
		wp_redirect(get_bloginfo('url'),'?message=1');
	}
	else
	{
		wp_redirect(get_bloginfo('url'),'?message=2');
	}
	exit();
}

now on mysite/wp-login.php?action=register page showing errors
1-Warning: header() expects parameter 3 to be long.
2-Warning: Missing argument 2 for myfunc() in
3-Warning: Missing argument 3 for myfunc() in
can any one help?