javascript calling controler without form

[eluser]attos[/eluser]
You are correct. To pass a parameter to the controller you should add a 'data' element to the ajax call. The trick is that it has to be a javascript object.

Lets assume you some how get the id into a variable, called id.

Your ajax call should look like this (plan text, no code highlighting, I noticed that highlighting the code chops off the <?php and ?&gt:

Code:

$.ajax({
    type: "POST",
    url: "<?php echo site_url()?>/contact/feedback",
    data: {'id' : id },
    ...

Then in your controller you should be able to retrieve the id from the input object:

Code:

$id = $this->input->post('id');

and call the model with something like:

Code:

$this->model_name->some_function($id);