rw inline error search form

rw-form-validator.php

<?php
// admin/config/user-interface/ife
// Set search form to 'enabled' and "remove all messages".

// LZ filter validation
$lz_filter_raw = $form_state['values']['lz_filter'];
preg_match_all('!\d+!', $lz_filter_raw, $zipcode);
$zipcode = $zipcode[0][0];

// Check if zip code is in RW database
$lz_filter = rrd_search_validate_rw_db_zipcode($zipcode);

if (!$lz_filter) {
  form_set_error('lz_filter', t('Error! We do not have your zip code in our database'));  
}