Creating breadcrumbs in WordPress themes can be a pain.  With that in mind, this handy function should be exactly what you need.

function waz_breadcrumbs()

{

$delimiter = '»';

$name = 'Home'; //text for the 'Home' link

$currentBefore = '<span>';

$currentAfter = '</span>';

if ( !is_home() && !is_front_page() || is_paged() ) {

echo '<div id="crumbs">';

global $post;

$home = get_bloginfo('url');

echo '<a href="' . $home . '">' . $name . '</a> ' . $delimiter . ' ';

if ( is_category() ) {

global $wp_query;

$cat_obj = $wp_query->get_queried_object();

$thisCat = $cat_obj->term_id;

$thisCat = get_category($thisCat);

$parentCat = get_category($thisCat->parent);

if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' '));

echo $currentBefore . '';

single_cat_title();

echo '' . $currentAfter;

} elseif ( is_day() ) {

echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';

echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' ';

echo $currentBefore . get_the_time('d') . $currentAfter;

} elseif ( is_month() ) {

echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' ';

echo $currentBefore . get_the_time('F') . $currentAfter;

} elseif ( is_year() ) {

echo $currentBefore . get_the_time('Y') . $currentAfter;

} elseif ( is_single() ) {

$cat = get_the_category(); $cat = $cat[0];

echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' ');

echo $currentBefore;

the_title();

echo $currentAfter;

} elseif ( is_page() && !$post->post_parent ) {

echo $currentBefore;

the_title();

echo $currentAfter;

} elseif ( is_page() && $post->post_parent ) {

$parent_id = $post->post_parent;

$breadcrumbs = array();

while ($parent_id) {

$page = get_page($parent_id);

$breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>';

$parent_id = $page->post_parent;

}

$breadcrumbs = array_reverse($breadcrumbs);

foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' ';

echo $currentBefore;

the_title();

echo $currentAfter;

} elseif ( is_search() ) {

echo $currentBefore . 'Search results for &#39;' . get_search_query() . '&#39;' . $currentAfter;

} elseif ( is_tag() ) {

echo $currentBefore . 'Posts tagged &#39;';

single_tag_title();

echo '&#39;' . $currentAfter;

} elseif ( is_author() ) {

global $author;

$userdata = get_userdata($author);

echo $currentBefore . 'Articles posted by ' . $userdata->display_name . $currentAfter;

} elseif ( is_404() ) {

echo $currentBefore . 'Error 404' . $currentAfter;

}

if ( get_query_var('paged') ) {

if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' (';

echo __('Page') . ' ' . get_query_var('paged');

if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')';

}

echo '</div>';

}

}