function updateDOP()
	{
		// set common properties
		$data['title'] = 'Update person';
		$data['action'] = site_url('do_control/updateDOP');
		$data['link_back'] = anchor('do_control/listDO/','Back',array('class'=>'back'));
		
		// set empty default form field values
		$this->_set_fields_time();
		// set validation properties
		$this->_set_rules_time();
		
		// run validation
		if ($this->form_validation->run() == FALSE)
		{
			$data['message'] = '';
		}
		else
		{
			// save data
			print_r($_POST);
			$id_timeline = $this->input->post('id_timeline');
			$person = array('status' => $this->input->post('status'));
			$this->Person_model->updateDO($id_timeline,$person);
			
			// set user message
			$data['message'] = '<div class="success">update DO success</div>';
		}
		
		// load view
		$this->load->view('header');
		$this->load->view('body-left');
		$this->load->view('body-center');
		$this->load->view('DOedit', $data);
		$this->load->view('information');
		$this->load->view('body-right');
		$this->load->view('footer');
	}