function wp_list_pages($args = '') {
	if ( is_array($args) )
		$r = &$args;
	else
		parse_str($args, $r);

	$defaults = array('depth' => 0, 'show_date' => '', 'date_format' => get_settings('date_format'),
		'child_of' => 0, 'title_li' => __('Pages'), 'echo' => 1);
	$r = array_merge($defaults, $r);

	$output = '';

	// Query pages.
	$pages = get_pages($r);

	if ( !empty($pages) ) {
		if ( $r['title_li'] )
			$output .= '<li class="pagenav">' . $r['title_li'] . '<ul>';

		global $wp_query;
		$current_page = $wp_query->get_queried_object_id();
		$output .= walk_page_tree($pages, $r['depth'], $current_page, $r['show_date'], $r['date_format']);

		if ( $r['title_li'] )
			$output .= '</ul></li>';
	}

	$output = apply_filters('wp_list_pages', $output);

	if ( $r['echo'] )
		echo $output;
	else
		return $output;
}