$temp = dirname(
        str_replace(
            '%2F',
            '/',
            urlencode($q['pagename'])));

    $names = explode('/', $temp);
    $parent = null;

    foreach ($names as $name) {
        $name = sanitize_title($name);
        $query = "SELECT ID " .
            "FROM $wpdb->posts " .
            "WHERE post_name='$name'" .
            (isset($parent) ?
                " AND post_parent=$parent" :
                "");

        $parent = null;
        $parent = $wpdb->get_var($query);

        if (!isset($parent)) {
            // an error occured, continue as normal
            $parent = null;
            break;
        }
    }

    $q['pagename'] = sanitize_title(
        basename(
            str_replace(
                '%2F',
                '/',
                urlencode($q['pagename']))));
    $q['name'] = $q['pagename'];
    $where .=
        " AND post_name = '" .
        $q['pagename'] .
        "'" .
        (isset($parent) ?
            " AND post_parent=$parent" :
            "");

    if ((($user_id == $post_author_data->ID) &&
         !($post->post_status == 'publish' &&
            $author_data->user_level < 2)) ||
         ($author_data->user_level >
             $post_author_data->user_level) ||
         (($author_data->user_level >=
             $post_author_data->user_level) &&
          ($author_data->user_level >= 5)) ||
         ($author_data->user_level >= 10) )
    {
        return true;
    } else {
        return false;
    }