echo '<input type="submit" name="submit" id="submit" value="Submit" />';
            if (isset($_POST['submit']) && ($_POST['submit'] == 'Submit')) {
                         $query = array(
                                'ID' => $post->ID,
                                'post_status' => 'publish',
                               );
                                    wp_update_post( $query, true );
                                    }