Return values from CI controllers to Javacript (jQuery)

[eluser]MungeGerard[/eluser]
Hi all,

I'm building my 1st website with CI and I must say, it's really great!

At this point I'm programming an Ajax(jQuery) / Controller combination to submit my forms. But I just can't figure out how to return a value from the codeigniter controller to the javascript function that calls the controller.

Javascript function

Code:

$.ajax({
    type: "POST",
    url: sUrl,
    data: sData,
    success: function(response) {
        alert(response);
    }
});

CI controller

Code:

function send() {
    if($this->session->userdata('session_id')==$_POST['sVerification']){
        if($this->email->send()){
            $result = 'send';
        }
        else {
            $result = 'error';
        }
    }
    else {
        $result = 'sessionerror';
    }
    print_r($result);
    return($result);
}

I summarized the scripts, I only included the lines that matter

Everything works fine, only no data gets returned to the javascript.

Hope you guys can help me out here,

Gerard