form::submit PHP Method

    public static function submit($value = null, $attributes = array())
    {
        return static::input('submit', null, $value, $attributes);
    }

 public function index($page = 1)
 {
     $db = new Database();
     // You can assign anything variable to a view by using standard OOP
     // methods. In my welcome view, the $title variable will be assigned
     // the value I give it here.
     $this->template->title = 'Welcome to YAG demo!';
     $grid = Grid::factory()->set('display_head', true)->set('display_foot', true)->set('display_body', true)->set('table_attributes', array('id' => 'demo_table_1', 'width' => '100%'));
     $grid->CheckboxField('id')->set('title', 'ID')->set('checked', array(2, 3, 4, 6, 9))->set('sortable', true)->set('foot', form::checkbox('checkall', 'yes', false, "onclick=\"check_all('id[]');\"") . form::dropdown('action', array('edit' => 'Edit', 'delete' => 'Delete'), 'edit') . form::submit('submit', 'OK'))->set('extra', array("onclick" => "checkbox_check('id[]')"));
     $grid->TextField('id')->set('title', 'ID')->set('sortable', true);
     $grid->TextField('text')->set('title', 'Text')->set('sortable', true);
     $grid->DateField('date')->set('title', 'Date')->set('format', 'Y-m-d')->set('sortable', true);
     $grid->ActionField()->set('title', 'Action')->add_action('edit', 'id', 'Edit', 'http://www.path.to/my/controller')->add_action('delete', 'id', 'Delete');
     $offset = (int) ($page - 1) * 10;
     $offset = $offset < 0 ? 0 : $offset;
     $order_field = 'id';
     $order_direction = 'asc';
     if ($this->input->get('order_by') and $grid->field_exists($order_field, true)) {
         $order_field = $this->input->get('order_by');
     }
     if ($this->input->get('order_direction') and in_array(strtoupper($this->input->get('order_direction')), array('ASC', 'DESC'))) {
         $order_direction = strtoupper($this->input->get('order_direction'));
     }
     $data = $db->select($grid->get_fields(true))->from('demotable')->limit(10)->offset($offset)->orderby($order_field, $order_direction)->get();
     $count = $db->query('SELECT FOUND_ROWS() AS rows;')->current();
     $this->pagination = new Pagination(array('total_items' => $count->rows, 'items_per_page' => 10));
     $grid->set('extra_row_foot', '<td colspan="' . count($grid->fields) . '">' . $this->pagination->render() . '</td>');
     $grid->set('data', $data);
     $html = $grid->render();
     // Get Javascript for checkbox gimmicks
     $this->template->checkall_js = $grid->render_js('checkall');
     $this->template->content = $html;
 }