code: function(bodyContents) {
              // Cleanup
              this.$main.html('');
  
              if (this.$header) {
                  this.$hud.removeClass('has-header');
                  this.$header.remove();
                  this.$header = null;
              }
  
              if (this.$footer) {
                  this.$hud.removeClass('has-footer');
                  this.$footer.remove();
                  this.$footer = null;
              }
  
              // Append the new body contents
              this.$main.append(bodyContents);
  
              // Look for a header and footer
              var $header = this.$main.find('.' + this.settings.headerClass + ':first'),
                  $footer = this.$main.find('.' + this.settings.footerClass + ':first');
  
              if ($header.length) {
                  this.$header = $header.insertBefore(this.$mainContainer);
                  this.$hud.addClass('has-header');
              }
  
              if ($footer.length) {
                  this.$footer = $footer.insertAfter(this.$mainContainer);
                  this.$hud.addClass('has-footer');
              }
          }
docs: Update the body contents