/*
 * function get_links_list()
 *
 * added by Dougal
 *
 * Output a list of all links, listed by category, using the
 * settings in $wpdb->linkcategories and output it as a nested
 * HTML unordered list.
 *
 * Parameters:
 *   order (default 'name')  - Sort link categories by 'name' or 'id'
 *   hide_if_empty (default true)  - Supress listing empty link categories
 */
function get_links_list($order = 'name', $hide_if_empty = 'obsolete') {
	$order = strtolower($order);

	// Handle link category sorting
	$direction = 'ASC';
	if ( '_' == substr($order,0,1) ) {
		$direction = 'DESC';
		$order = substr($order,1);
	}

	if ( !isset($direction) )
		$direction = '';

	$cats = get_categories("type=link&orderby=$order&order=$direction&hierarchical=0");

	// Display each category
	if ( $cats ) {
		foreach ( (array) $cats as $cat ) {
			// Handle each category.

			// Display the category name
			echo '  <li id="linkcat-' . $cat->term_id . '" class="linkcat"><h2>' . apply_filters('link_category', $cat->name ) . "</h2>\n\t<ul>\n";
			// Call get_links() with all the appropriate params
			get_links($cat->term_id, '<li>', "</li>", "\n", true, 'name', false);

			// Close the last category
			echo "\n\t</ul>\n</li>\n";
		}
	}
}