<script type="text/javascript" charset="utf-8">
   $(document).ready(function() {
       // A function to pre-check a column of an array
       function checkedDefault(qID, column) {
           var checkedCol = column - 1;
           $('#question' + qID + ' table.question tbody tr').each(function(i) {
               if ($('input.checkbox[checked=true]', this).length == 0) {
                   $('input.checkbox:eq(' + checkedCol + ')', this).attr('checked', true);
               }
           });
       }
       // Call the function with a question ID and column number
       checkedDefault(165, 1);
   });
</script>

<script type="text/javascript" charset="utf-8">  
  $(document).ready(function() {
    // A function to pre-check a column of an array
    function checkedDefault(qID, column) {
      var checkedCol = column - 1;
      $('#question'+qID+' tr.subquestions-list').each(function(i) {
        if ($('input.checkbox:checked', this).length == 0) {
          $('input.checkbox:eq('+checkedCol+')', this).prop('checked', true);
          $('input.checkbox:eq('+checkedCol+')', this).parent().find('input[type="hidden"]').val(1);
        }
      });
    }
    // Call the function with a question ID and column number
    checkedDefault(165, 1);
  });
 
</script>