Process::restore

public function restore()
{
	if(!isset($_SESSION[$this->sessionKey]['STAGE']))
		$_SESSION[$this->sessionKey]['STAGE'] = 0;

	if(!isset($_SESSION[$this->sessionKey]['STEP']))
		$_SESSION[$this->sessionKey]['STEP'] = 0;

	if(!isset($_SESSION[$this->sessionKey]['DATA']))
		$_SESSION[$this->sessionKey]['DATA'] = array();

	$this->stage =& $_SESSION[$this->sessionKey]['STAGE'];
	$this->step =& $_SESSION[$this->sessionKey]['STEP'];
	$this->data =& $_SESSION[$this->sessionKey]['DATA'];
}