jQuery result to $.post 
<p>On a page, I have several checkboxes, the id is different for each. The number of checkbox is not fixed, may be one, 4, 10, ... I'd like get all the id and send them via a $.post.</p>

<p>How can I do this ?</p>

<p>Thanks,</p>

<p><strong>Update 1:</strong></p>

<pre><code>var jqxhr = $.post("/Controller/MyAction", {
    field1: $("#field1").val(),
    benefic: $(":checkbox").serialize(),
    fileld2: $("#fileld2").val()
},
function (data) {
})
.success(function () {
})
.error(function (jqXHR, status, error) {
})
.complete(function () {

});
</code></pre>

<p>I don't see any value in my controller for "benefic" ... and it's the "id" of selected checkbox I need</p>
