Modifying webform options with Drupal hook webform_select_options_info

your_module.info

; $Id$
name = Your_Module Webform options
description = Preset options for Your_Module webform fields
package = "Your_Module"
project = Your Project
core = 6.x
version = 6.x-1.0

your_module.module

<?php

/**
 * Reference: http://xebee.xebia.in/2011/06/14/drupal-webform-add-a-dynamic-select-option-list/
 * The following piece of code is based on the blog post above written by Anubhav
 */

function your_module_custom_webforms_webform_select_options_info() {
  $items = array();
//   if (function_exists('_get_node_titles')) {
    $items['my_dealers'] = array(
      'title' => t('Node titles'),
      'options callback' => '_get_options',
    );
//   }
  return $items;
}

function _get_options() {
  $options = array();

  // Query to search for ...
  $sql = "SELECT nid, title FROM {node}";

  $result = db_query($sql);
  foreach ($result as $row) {
    $options[$row->nid] = $row->title;
  }

  // Change this with the previous query
  $options[] = "option 1";
  $options[] = "option 2";

  return $options;
}