anchor.diff:                          $('#oncoprint .loader_img').hide();
                           $('#oncoprint #everything').show();
   
  -                        oncoprintZoomSetup(oncoprint, $('#oncoprint_controls #zoom'));
  +                        oncoprintZoomSetup($('#oncoprint_controls #zoom'));
                       }
                   });
   
                   var select_clinical_attributes_id = '#select_clinical_attributes';
                   var oncoprintClinicals;
  -
                   var sortBy = $('#oncoprint_controls #sort_by');
   
  +                // handler for when user selects a clinical attribute to visualization
                   var clinicalAttributeSelected = function() {
                       oncoprint.remove_oncoprint();
                       $('#oncoprint_body .loader_img').show();
  
positive.code:                                     clinical_attrs: response.attributes()
                                  });
  
                                  $(sortBy.add('option[value="clinical"]')[1]).prop('disabled', false);
  
                                  sortBy.val('genes');
                              }
                          });
                      }
                  };
                  $(select_clinical_attributes_id).change(clinicalAttributeSelected);
  
                  $('#oncoprint_controls #sort_by').change(function() {
                      oncoprint.sortBy(sortBy.val());
                  });
  
negative.code:                     rppa_score_threshold: rppa_score_threshold
                  });
  
                  // takes a div and creates a zoombar on it.  Inside it refers
                  // to a global var called `oncoprint` on which it zooms.
                  var oncoprintZoomSetup = function(div) {
                      $('<div>', { id: "width_slider", width: "100"})
                              .slider({ text: "Adjust Width ", min: .1, max: 1, step: .01, value: 1,
                                  change: function(event, ui) {
                                      oncoprint.zoom(ui.value);       // N.B.
                                  }}).appendTo($(div));
                  };
  
  