anchor.diff:            }
   
           }, true);
  -
  -        // Take user to a POI when passed a string from WebGL
  -        function goToParagraph() {
  -          // don't do anything quite yet - here to prevent errors
  -          var goToParagraph = null;
  -        }
         }
       });
     });
  
positive.code:           }
  
          }, true);
  
          // Take user to a POI when passed a string from WebGL
          function goToParagraph() {
            // don't do anything quite yet - here to prevent errors
            var goToParagraph = null;
          }
        }
      }
      // or load the webgl if the tab is clicked
  
negative.code: <div class="webgl-content">
    <div id="gameContainer" style="width: 1024px; height: 600px" tabindex="0"></div>
  </div>
  
  <div class="modal fade" id="goToParagraphModal" tabindex="-1" role="dialog" aria-labelledby="goToParagraphModalLabel">
    <div class="modal-dialog" role="document">
      <div class="modal-content">
        <div class="modal-header">
          <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
        </div>
        <div class="modal-body">
          <p>To view a textual reference to this stratigraphic unit in the publication, please use the following permalink (will open in a new window):</p>
  
          <p id="paragraphHandle"></p>
        </div>
        <div class="modal-footer">
          <button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
        </div>
      </div>
    </div>
  </div>
  