usky-website/web/application/core/MY_Controller.php

<?php

/**
 * The base controller which is used by the Front and the Admin controllers
 */
class MY_Controller extends CI_Controller
{
	public function __construct()
	{
		parent::__construct();	
		date_default_timezone_set("Asia/Shanghai");
        session_start();
	}//end __construct()

}//end MY_Controller


class MY_Main_Controller extends MY_Controller
{	
    public $class_name;
    
    public $action_name;

	function __construct(){
		parent::__construct();
		$this->load->set_front_theme('v1');
        $this->class_name = strtolower(get_class($this));
        $this->action_name = '';
	}

    public function load_view($data=array())
    {
        $this->load->view($this->class_name.$this->action_name.'View' , $data);
    }    

}

class MY_Admin_Controller extends MY_Controller
{	
    
	function __construct(){
		parent::__construct();
		$this->load->set_admin_theme();
        
	}

	protected function checkAdminLogin()
    {
        $isLogin = false;
        if(!isset($_SESSION['adLogin']) || empty($_SESSION['adLogin']))
            $isLogin = false;
        else
            $isLogin = true;
        return $isLogin;

    }
}

?>