calling javascript function

My php code is running along fine. At some point I make this call:
$this->load->view("javascript_funcs_extensionloaded","snapshot_mode2");

$this->load->view($file, $data)  assumes that the file is a php file in the application/views folder.
If you have a javascript_funcs_extensionloaded.php file, which - on it's turn - loads a javascript file in your /js folder, make sure you make the correct reference to the js folder.
Best way IMO is:

PHP Code:

<script src="<?= base_url();?>js/script_filename.js" /> 


Put this code at the top of your view.