<?php

add_action( 'widgets_init', 'my_unregister_widgets' );

function my_unregister_widgets() {
	unregister_widget( 'WP_Widget_Calendar' );
	unregister_widget( 'WP_Widget_Tag_Cloud' );
}

if ( function_exists('register_sidebar') )
    register_sidebar();

// http://www.ericmmartin.com/conditional-pagepost-navigation-links-in-wordpress-redux/
function show_posts_nav() {
	global $wp_query;
	return ($wp_query->max_num_pages > 1);
}

?>