how to identify if checkbox is checked ajax? : <p>When I'm getting E-mail message I can not identify which checkbox is checked.</p>

<p>My JS code looks like this: </p>

<pre><code>$(document).ready(function(){

$('#submit').click(function(){
    $.post("submit.php", 
        {service1: $('#service1').val(), 
         service2: $('#service2').val(), 

        function(data){
            $('#response').html(data);
        }
    );

});
</code></pre>

<p>What should I add to my code to identify which is checked?
Thanks</p>
