Examples
In this example there is a button you click on, and it triggers an ajax request/call. The request is routed to an ajax controller. The ajax controller goes a step further and triggers a success message, right from the back-end, and that is what you see as end result.
PHP
<?php
$ajax->click("#button1",$ajax->call("ajax.php?click_ajax_request/click_button/Hello!"));
?>
HTML
<input type='button' id='button1' value='Click this button to make an ajax request'>
Try it
As of CJAX 5.9+
PHP
<?php
$ajax->click("button2",$ajax->call(array('click_ajax_request','click_button','Hello!'));
?>
HTML
<input type='button' id='button2' value='Click this button to make an ajax request'>