redirect not working

[eluser]esenes[/eluser]
i have a controller named "clogout" in that within index function i tried to redirect to another controller named "clogin" but it shows the following error...

"Fatal error: Call to undefined method CI_Loader::redirect() in D:\Projects\htdocs\ci_start\application\controllers\clogout.php on line 25"

i included the helpers like

$this->load->helper(array('url','form','jquery'));

but still not working..help me friends...