each function with td element

each function with td element

Hi All,
I am having list of checkboxes inside to the <td id = "left"> as sample below,
<td id = "left">
                            <div><input id="0" name="0" type="checkbox" value="true" /><input name="0" type="checkbox" /> Self Referral</div>
                            <div><input id="10001" name="10001" type="checkbox" value="true" /><input name="10001" type="checkbox" /> Cheng-Hsung Liao Dental Corporation</div>
  </td>
<input type = "button" id = "btnAssign" value = "Assign" />

Now In button click i need get the id of all the checkboxes which are checked. for that i wrote jquery like below but i am not getting the result.

$(document).ready(function() {
    $("#btnAssign").click(function() {
        var result = "";
        alert($("#left :checked").size());
        alert("message 0");
        debugger
            $("#dv : checked").each(function() {
                result = result + $(this).val() + ", ";
              });
            alert(result);
        });
    });


please give me a suggestion to make the above code work.

Thanks.