my_controller.php

<?php

class MY_Controller extends CI_Controller
{
/**
 * Takes the method passed to it for the router
 * and loads a header and footer for all controller methods
 * automatically setting an id and class for CSS Scoping
 *
 * @param string $method 
 * @return null
 * @author Kenny Meyers
 */
public function _remap($method)
{
    if(method_exists($this, $method))
    {
        //Get the current controller class and set it as the 
        //body class attribute
        $body_class  = strtolower(get_class($this)); 
        // Index isn't a great id name, but since it's the index of
        // the controller we set that
        $body_id = ($method == "index") ? $body_class : $method; 
        $this->load->view('_shared/header.html', array('body_id' => $body_id, 'body_class' => $body_class)); 
        $this->$method();
        $this->load->view('_shared/footer.html');
    }
    else
    {
        show_404();
    }
}
}