/**
 * Initialize the $_GET['q'] variable to the proper normal path.
 */
function drupal_init_path() {
  if (!empty($_GET['q'])) {
    $path = drupal_get_normal_path(trim($_GET['q'], '/'));
  }
  else {
    $path = drupal_get_normal_path(variable_get('site_frontpage', 'node'));
  }

  // Wipe the temporarily stored path information.
  drupal_lookup_path('wipe');

  $active_alias = drupal_get_path_alias($path, '', FALSE);
  if ($_GET['q'] != $active_alias) {
    $query = $_GET;
    // Unset the drupal path query.

    unset($query['q']);

    // Redirect to the active alias.

    drupal_goto($path, ($query ? $query : NULL), NULL, 301);
  }
  else {
    $_GET['q'] = $path;
  }
}