loading javascript

[eluser]Unknown[/eluser]
while initialize the Javascript class manually in my controller constructor using following code
$this->load->library('javascript', array('js_library_driver' => 'scripto', 'autoload' => FALSE));

i get Unable to load the requested class: scripto..help me plz..thx

[eluser]CroNiX[/eluser]
The docs for the javascript library say only jquery is available so far. I know they show what you wrote in the example.