Drop and Drag on clone table rows doesnt work

Drop and Drag on clone table rows doesnt work

Hi,

  Is there someone that can help me. I clone my table rows, which is this
 
  var row = $("#sort tbody>tr:last").clone(true);
  row.find('.content').append('<td id="drop" class="drop"></td><td class="item"></td>');
  row.insertAfter('#sort tbody>tr:last');
  return false;

  And i succed on this. my problem is when i try to drop on my clone table rows. i cannot drag and drop there.
On the other side, the original table rows has no problem on drag and drop.

Kindly see my drop and drag code:

   $('.drag').draggable({
                helper: 'clone',
                containment: '#sort',
                
            
            });
        
        $('.drop').droppable({
                accept: '.drag',
                tolerance: 'fit',
                drop: function(e, ui)
                {
                    var items = $(this).html($(ui.draggable).text());
                    $(this).val($(ui.draggable).text());
                    
                }
            
            });

Please reply if someone have an idea to solve my problem.
Thanx in advance

Regards,
joedhay