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<?php
// Redirect to homepage after logout
add_action('wp_logout','go_home');
function go_home(){
  wp_redirect( home_url() );
  exit();
}

// Customize the toolbar for non admins
function change_toolbar($wp_toolbar) {
	if ( !current_user_can( 'manage_options' ) ) {
	$wp_toolbar->remove_node('wp-logo');
	$wp_toolbar->remove_node('site-name');
	$wp_toolbar->remove_node('search');
	$wp_toolbar->remove_node('my-account');
	$wp_toolbar->add_node(array(
	'id' => 'loguserout',
	'title' => '&rarr; Logout',
	'href' => wp_logout_url( get_permalink() )
));
	}
}

add_action('admin_bar_menu', 'change_toolbar', 999);