MY_Loader.php

<?php if (!defined('BASEPATH')) exit('No direct script access allowed');
class MY_Loader extends CI_Loader {
 
  public $layout = "application";
 
  function MY_Loader() {
    parent::CI_Loader();
  }
  
  function setLayout($layout) {
    $this->layout = $layout;
  }
 
  public function view($view, $data = null, $return = false) {
    if ($this->layout == 'none')
    	$this->partial($view, $data, $return);
    else {
		$resultData['layoutContent'] = parent::view($view, $data, true);
		return parent::view('layouts/' . $this->layout, $resultData, $return);
    }
  }

  public function partial($view, $data = null, $return = false) {
    return parent::view($view, $data, $return);
  }
}