Execute php script with JS [duplicate]

Possible Duplicate:
Execute php url with JS

How can I simply execute a php script, is there a JS or jQuery function for this? Same behaviour as a form submit.

function index() {

      $this->load->model('NewsFeed_model');
      $data['queryMovies'] = $this->NewsFeed_model->getPublications();        
      $this->load->view('news_feed_view', $data);

}