help with boolean

[eluser]KrizzAngel[/eluser]
ok that was clear.. i got it now.. but another problem i got here.. can u guys assess my code..

function index()
{
if($this->checker())
{
$this->load->view('home');
}
else
{
$this->upanel();
}
}

function checker()
{
return ($this->session->userdata('is_logged_in')) ;
}
function logout()
{
$this->session->sess_destroy();
$this->index();
}

*edited
ok i thought its my logout that had a problem but its not.. i closed my browser but it seems that index always redirect me to upanel XD