Array of Checkboxes Help!!!

Array of Checkboxes Help!!!

Hi All,

Newbie here. Would appreciate if i can get some help here.

I have a array of check boxes declared as follows:
  1. <tr class="<?php echo "cls" . $status; ?>">
    <td id="c"> <input type=checkbox id= "deleteConsignments1" name="deleteConsignments[]" onclick="row_color(this)" value= <?php echo $address2->getId(); ?> /> </td>

What i would like to acheive is that if that the form should only submit when only 1 of the checkboxes is checked. I have the following JQuery but it does'nt seem to work. Please help.

  1.       $("#btnUseAddress").click(function(){
                    alert('asdf');
                    $("#form_action").val("show_invalid");
                if ($('#deleteConsignments').is(':checked'))
                {
                    alert("sdfsdf");
                  $("#bookingForm").submit(); 
                }

                });









 
I would appreciate all the help!!!!

Thanks.