accessing base class variable

[eluser]mehwish[/eluser]
Actually I want to set some variables global so that from any method in my Form_controller class can access the value.

Code:

<?php


class Form_Controller extends MY_Controller {
    
    function Form_controller()
    {
        parent::Controller();
         }


     function index()
    {
                  if ($this->input->post('submitbutton2'))  
                      $email1=$this->input->post('email');
                  else $this->load->view('someview');
} // end of function index


function my_profile_page()
{echo $this->email1;}

}//end of class

Now I want to print the 'email1' variable. What should be the way to print?