anchor.diff:                                           );
   
               if (feature_count > max_cluster) {
  -                jQuery("#ds-hc").attr('disabled', 'disabled');
  +                jQuery("#ds-hc").attr('disabled', true);
               }
               if (feature_count > 3 && feature_count <= max_cluster) {
                   hm_ds.clusterSamples();
  
positive.code:                 }
  
              } else {
                  jQuery("#ds-km").attr('disabled', 'disabled');
              }
  
              hm_ds.draw();
  
negative.code:                                          );
              // cluster on gene/exons
              if (feature_count > max_cluster) {
                  jQuery("#cl-hc").attr('disabled', true);
              }
  
              if (feature_count > 3 && feature_count <= max_cluster) {
  