Need urgent help - Common method for all controller

[eluser]webdevron[/eluser]
Thanks a lot. But sorry to say, still there in a problem. That code looks good and works on localserver (XAMPP). But whenever I uploaded it on my hosting server there is an error saying:
Fatal error: Class 'My_controller' not found in /home/user/public_html/app/controllers/home.php on line 3

Code snip:
/application/core/MY_Controller.php

Code:

class My_Controller extends CI_Controller {
        public function __construct(){
            parent::__construct();
            $this->load->model('Toolmodel');
            $this->Toolmodel->save_visitor($this->save_visitor());
        }

        public function save_visitor(){
            // Getting User Informations
        }
    }

And in my default controller (in this case 'home'):

Code:

class Home extends My_controller{
     public function index(){
            // View loading here
     }
}

So, could you please tell me what is the problem with Hosted CPanel?