Return a themed breadcrumb trail (Drupal 6)

template.php

<?php
/**
 * Return a themed breadcrumb trail.
 *
 * @param $breadcrumb
 *   An array containing the breadcrumb links.
 * @return a string containing the breadcrumb output.
 */
function themename_breadcrumb($breadcrumb) {
  if (!empty($breadcrumb)) {
    $title = drupal_get_title();
    if (!empty($title)) {
      $breadcrumb[] = '<span class="active">'. $title .'</span>';
    }
    return '<div class="breadcrumb">'. implode(' › ', $breadcrumb) .'</div>';
  }
}