function add_editor_buttons($buttons) {

$buttons[] = 'fontselect';

$buttons[] = 'fontsizeselect';

$buttons[] = 'cleanup';

$buttons[] = 'styleselect';

$buttons[] = 'hr';

$buttons[] = 'del';

$buttons[] = 'sub';

$buttons[] = 'sup';

$buttons[] = 'copy';

$buttons[] = 'paste';

$buttons[] = 'cut';

$buttons[] = 'undo';

$buttons[] = 'image';

$buttons[] = 'anchor';

$buttons[] = 'backcolor';

$buttons[] = 'wp_page';

$buttons[] = 'charmap';

return $buttons;

}

add_filter("mce_buttons_3", "add_editor_buttons");