Validating realname field in profile.php

Hi

I need to ensure users sign up with a real name as the forum registration forms part of other functionality on the site. I can get this to work on the register.php ok but I seem to have a problem in the profile.php script. Obviously I need to ensure that the real name field is validated here as well.

I've added the following into the $lang_profile array in lang/profile.php:

'Realname too short'        =>    'Your real name must be 4 characters in length.',
'Realname censor'            =>    'The real name you entered contains one or more censored words. Please choose your real name!',

and the following into profile.php:

    // Validate real name
    $form['realname'] = trim($_POST['realname']);
    if (strlen($realname) < 4)
        message($lang_profile['Real name too short']);
   
    // Check realname for any censored words
    if ($pun_config['o_censoring'] == '1')
    {
    // If the censored username differs from the username
    if (censor_words($form['realname']) != $form['realname'])
        message($lang_profile['Realname censor']);
    }

which is taken from the username validation from register.php

The problem is no message appears to warn users that their real name needs to be 4 chars or more.

I can't see where message(); is defined or where the the warning is pulled in from. IE the bit that produces the following div:

<div id="msg" class="block">

Any help is greatly appreciated.

Cheers