Wordpress: breadcrumb for pages

gistfile1

/* breadcrumb function for pages *************************************************************
** http://rainmakerwebdesign.com/uncategorized/wordpress-breadcrumb-function-for-pages/ *** */
/* !부모 페이지 표시 ************************************************************************* */
function rm_bread_crumbs() {
	global $post;
	//if the page has a parent add title and link of parent
	if($post->post_parent) {
		$crumbs = '<a href="'.get_permalink($post->post_parent).'">'.get_the_title($post->post_parent).'</a>'.'<span class="raquo">&raquo;</span> ';
	}
	$crumbs .= get_the_title($post->ID);
	echo $crumbs;
}