Can I just download the changed part of the whole page?

[eluser]Unknown[/eluser]
page一：
$this->load->view('header');
$this->load->view('test1', $data);
$this->load->view('footer');
page二：
$this->load->view('header');
$this->load->view('test2', $data);
$this->load->view('footer');
can i just redownload test2，not all the other parts？ Thank you!