functions.php

<?php
//sidebar functionality
if ( function_exists('register_sidebar') ){
    register_sidebar('name=Sidebar&before_widget=<div class="zenboxsolid cool">&after_widget=</div>&before_title=<h3>&after_title=</h3>');
    register_sidebar('name=Footer&before_widget=&after_widget=&before_title=<h3>&after_title=</h3>');
    register_sidebar('name=Optional Footer&before_widget=<div class="footer_col">&after_widget=</div>&before_title=<h3>&after_title=</h3>');
}

// Turns the links into the top navigation menu.
// A link Categories' description becomes it's URL if it's valid.
function unl_menu_bookmarks(){
	$output = "";
	$cats = get_terms('link_category');
	foreach ( (array) $cats as $cat ) {
		$bookmarks = get_bookmarks('category='.$cat->term_id);
		if ( empty($bookmarks) )
			continue;
		if(filter_var($cat->description, FILTER_VALIDATE_URL)){
			$output .= '<li><a href="'. $cat->description. '" title="' . $cat->name . '">' . $cat->name . '</a><ul>';
		}else{
			$output .= '<li>' . $cat->name . '<ul>';
		}
		foreach($bookmarks as $bookmark){
			$output .= '<li><a href="' . $bookmark->link_url . '" title="' . $bookmark->link_name . '">' . $bookmark->link_name . '</a></li>';
		}
		$output .= '</ul></li>';
	}
	return $output;
}

function unl_footer_widgets($index = 1, $template_regions, $page) {
	global $wp_registered_sidebars, $wp_registered_widgets;

	if ( is_int($index) ) {
		$index = "sidebar-$index";
	} else {
		$index = sanitize_title($index);
		foreach ( (array) $wp_registered_sidebars as $key => $value ) {
			if ( sanitize_title($value['name']) == $index ) {
				$index = $key;
				break;
			}
		}
	}

	$sidebars_widgets = wp_get_sidebars_widgets();

	if ( empty($wp_registered_sidebars[$index]) || !array_key_exists($index, $sidebars_widgets) || !is_array($sidebars_widgets[$index]) || empty($sidebars_widgets[$index]) )
		return false;

	$sidebar = $wp_registered_sidebars[$index];

	$did_one = false;
	$x = 0;
	foreach ( (array) $sidebars_widgets[$index] as $id ) {
		if ( !isset($wp_registered_widgets[$id]) ) continue;

		$params = array_merge(
			array( array_merge( $sidebar, array('widget_id' => $id, 'widget_name' => $wp_registered_widgets[$id]['name']) ) ),
			(array) $wp_registered_widgets[$id]['params']
		);

		// Substitute HTML id and class attributes into before_widget
		$classname_ = '';
		foreach ( (array) $wp_registered_widgets[$id]['classname'] as $cn ) {
			if ( is_string($cn) )
				$classname_ .= '_' . $cn;
			elseif ( is_object($cn) )
				$classname_ .= '_' . get_class($cn);
		}