As title said, I'm trying to figure out how to use javascript and jquery libraries on CI.

Following instruction in the docs, I load the library in my controller:

$this->load->library('javascript');

Then, I define the location of the jQuery file (jquery.min.js) in the config.php:

$config['javascript_location'] = 'http://localhost/ci/assets/js/jquery/');

After that, I open the view file and put in these two lines:

<?php echo $library_src;?>

<?php echo $script_head;?> 

First error comes up here: Undefined variable $library_src and $script_head (don't understand where I have to set them)

Anyway, I've commented these lines and continue with jquery lib, by loading it in my controller with:

$this->load->library('jquery');

Next error: Unable to load the requested class: jquery. (it seems that it can't find the lib, what i messed up?)

Checking on system folder it looks all files are in place:

system/libraries/Javascript.php

system/libraries/javascript/Jquery.php

Thanks in advance for your help!