
                $(this).removeClass('draghover');
                var id = e.dataTransfer.getData('text/x-featuredartid');
                var currentArtwork = g_artworks[dayKey];
                if (!currentArtwork || currentArtwork.id != id) {
                  moveArtwork(id, dayKey * 1000);
                }
                return false;
              };
            }(dayKey)));
      }

      if (!enabled) {
        $target.attr('disabled', 'disabled');
      }

      // show meta layer
      $('<div>