anchor.diff:  
           // close panel function
           var close_panel = function() {
  +
             var $panel = $('.special-panel');
             if ($panel.length) {
               $('.special-panel').hide();
  
positive.code:                 '<div class="panel-info">' +
                    '<h2>Gabii Area B 3D Model</h2>' +
                    '<p><strong>DOI: https://doi.org/10.3998/mpub.9231782.model</strong></p>' +
                    '<p>The interactive content found here serves as a 3D visual reference for the narrative text. It ' +
                    'contains 3D models of Gabii\'s stratigraphy, schematic reconstructions of key features, ' +
                    'descriptive data, and direct links to entries from the project\'s online database. Links in the ' +
                    'text will guide you through a structured exploration of the house\'s stratigraphy and ' +
                    'reconstructions. Readers are encouraged both to follow the narrative laid out in this text, and ' +
                    'to explore the 3D content freely. Investigation into the data behind the interpretations and ' +
                    'reconstructions is supported by access to the project\'s database.' +
                    '</p>' +
                  '</div>' +
                '</div>';
  
negative.code:             }, 0);
            }
          }
  
          // resize the webGL canvas
          var resize_webgl = function() {
            var $panel= $(".special-panel");
            var h = $panel.height();
            var w = $panel.width();
  
            var r = w / 1024;
            var width = w + 'px';
            var height = Math.ceil(600 * r) + 'px';
  
            var $g = $('#gameContainer');
            $g.css({ width: width, height: height });
            var $c = $g.find('canvas').get(0);
            $c.setAttribute('width', parseInt(width));
            $c.setAttribute('height', parseInt(height));
          }
  
          // dynamic WebGL canvas resizing
          reader.on('resized', function() {
            resize_webgl();
          })
  
          // Open SU panel in WebGL if SU link is clicked
          var click_handler = function(event) {
  