mnn_user_id.module

<?php
/**
 * @file
 * Code for the MNN User ID.
 */
 
/**
 * Implements hook_form_FORM_ID_alter().
 */
function mnn_user_id_form_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'user_register_form') {
  
  
  $form['account']['uid'] = array(
    '#type' => 'textfield',
    '#title' => 'UID',
    '#required' => TRUE,
    '#weight' => '-11', 
    '#description' => 'Create the user in Access Center 1.0 first, then copy the ID into this field so the user ids match',
  );
  $form['account']['is_new'] = array(
    '#type' => 'hidden',
    '#title' => 'is_new',
    '#value' => TRUE, 
  );
  
  //dsm($form);
  }
}