//add a fourth footer widget area//

add_action( 'widgets_init', 'register_fourth_footer_widgets', 20 );

function register_fourth_footer_widgets() {

	register_sidebar( array(
		'name' => __( 'Footer Area Four', 'twentyeleven' ),
		'id' => 'sidebar-6',
		'description' => __( 'An optional widget area for your site footer', 'twentyeleven' ),
		'before_widget' => '<aside id="%1$s" class="widget %2$s">',
		'after_widget' => "</aside>",
		'before_title' => '<h3 class="widget-title">',
		'after_title' => '</h3>',
	) );
}