ifdef::backend-xhtml11[]
++++
<div id="toc-section">
        <div id="toctitle">
            <img class="trex_logo" src="images\trex_logo_toc.png"/>
            Table of Contents
        </div>

        <div id="toggle">
          <img src="images\icons\toggle.png" title="click to toggle table of contents"/>
        </div>
        

        <div id="toc">
          <div id="nav-tree">
          
          </div>
        </div>
</div>



    <!-- load the theme CSS file -->
    <link href="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/themes/default/style.min.css" rel="stylesheet"/>
    
    <link href="https://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" rel="stylesheet" />

    <!-- include the jQuery library -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.12.1/jquery.min.js">
    </script>

    <!-- include the jQuery UI library -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js">
    </script>

    <!-- include the minified jstree source -->
    <script src="https://cdnjs.cloudflare.com/ajax/libs/jstree/3.2.1/jstree.min.js">
    </script>
    
    <style type="text/css">
    
        #toc {
          margin-bottom: 2.5em;
        }
        
        #toctitle {
          color: #527bbd;
          font-size: 1.1em;
          font-weight: bold;
          margin-top: 1.0em;
          margin-bottom: 0.1em;
        }

        @media screen {
          body {
            max-width: 50em; /* approximately 80 characters wide */
            margin-left: 20em;
          }
        
          #toc {
            position: fixed;
            top: 51px;
            left: 0;
            bottom: 0;
            width: 18em;
            padding-bottom: 1.5em;
            margin: 0;
            overflow-x: auto !important;
            overflow-y: auto !important;
            border-right: solid 2px #cfcfcf;
            background-color: #FAFAFA;
            white-space: nowrap;
          }
        
          #toctitle {
            font-size: 17px !important;
            color: #4d4d4d !important;
            margin-top: 0px;
            height: 36px;
            line-height: 36px;
            background-color: #e4e2e2;
            padding: 8px 0px 7px 45px;
            white-space: nowrap;
            left: 0px;
            display: block;
            position: fixed;
            z-index: 100;
            width: 245px;
            top: 0px;
            overflow: hidden;
          }
          
          #toc .toclevel1 {
            margin-top: 0.5em;
          }
        
          #toc .toclevel2 {
            margin-top: 0.25em;
            display: list-item;
            color: #aaaaaa;
          }
        
        }


      /* Custom for Nave Tree */
      #nav-tree{
        margin-left: 10px !important;
      }
      
      #nav-tree ul > li {
        color: #000 !important;
      }
      
      .jstree-wholerow.jstree-wholerow-clicked {
        background-image: url('images/icons/selected_tab_bg.png');
        background-repeat: repeat-x;
        color: #fff !important;
        text-shadow: 0px 1px 1px rgba(0, 0, 0, 1.0);
      }

            /* For side bar */
      .ui-resizable-e{
        height: 100%;
        width: 4px !important;
        position: fixed !important;
        top: 0px !important;
        cursor: e-resize !important;
        background: url('images/splitbar.png') repeat scroll right center transparent !important;
      }

      .jstree-default .jstree-themeicon{
        display: none !important;
      }


      .jstree-anchor {
        font-size: 12px !important;
        color: #91A501 !important;
      }


      .jstree-clicked{
        color: green !important;
      }
      

      #toggle {
        position: fixed;
        top: 14px;
        left: 10px;
        z-index: 210;
        width: 24px;
      }

      #toggle img {
        opacity:0.3;
      }

      #toggle img:hover {
        opacity:0.9;
      }

      .trex_logo{
        top: 6px;
        position: relative;
      }


 </style>



<script>

      $(document).ready(function(){
          var isOpen = true;

        // Initialize NavTree
        initializeNavTree();
        // Drag TOC left and right
        initResizable();
        // Toggle TOC whe clicking on the menu icon
        toggleTOC();
        // Handle Mobile - close TOC
        checkMobile();

        function initializeNavTree() {

          // TOC tree options
          var toc_tree = $('#nav-tree');        

          var toc_tree_options = {
            'core' : {
              "animation" :false,
              "themes" : { "stripes" : false },
              'data' : {
                "url" : "./input_replace_me.json",  
                "dataType" : "json" // needed only if you do not supply JSON headers
              }
            }
            ,
            "plugins" : [ "wholerow" ]
          };

          $('#nav-tree').jstree(toc_tree_options) ;

          toc_tree.on("changed.jstree", function (e, data) {
            window.location.href = data.instance.get_selected(true)[0].original.link;
          });
        }
        
        function initResizable() {
          var toc = $("#toc");
          var body = $("body");

          // On resize
          $("#toc").resizable({
              resize: function(e, ui) {
                  resized();
              },
              handles: 'e'
          });
          
        // On zoom changed
          $(window).resize(function() {
            if(isOpen){
                resized();
            }
          });


         // Do it for the first time
            var tocWidth = $(toc).outerWidth();
            var windowHeight = $(window).height();
            $(".ui-resizable-e").css({"right":$(window).width()-parseInt(tocWidth)+"px"});
            $("#toctitle").css({"width":parseInt(tocWidth)-45+"px"});
            $("#toc-section").css({"height":windowHeight + "px"});
            $("#content-section").css({"height":windowHeight + "px"});
       
        }

        function resized(){
          var body = $("body");
          var tocWidth = $(toc).outerWidth();
          var windowHeight = $(window).height();

          body.css({"marginLeft":parseInt(tocWidth)+20+"px"});
          $(".ui-resizable-e").css({"right":$(window).width()-parseInt(tocWidth)+"px"});
          $("#toctitle").css({"width":parseInt(tocWidth)-45+"px"});
          $("#toc-section").css({"height":windowHeight + "px"});
          $("#content-section").css({"height":windowHeight + "px"});
          
        }


        function toggleTOC(){
          $( "#toggle" ).click(function() {
            if ( isOpen ) {
              // Close it
               closTOC();
            } else {
              // Open it
              openTOC();
            }
            // Toggle status
            isOpen = !isOpen;
          });
        }


        // Close TOC by default if it is mobile
        function checkMobile(){
          if(isMobileDevice()){
            closTOC();
            $(".ui-resizable-e").hide();
          }
        }

        // Check it it it is running on mobile device
        function isMobileDevice() {
            if(
                navigator.userAgent.match(/Android/i) ||
                navigator.userAgent.match(/BlackBerry/i) ||
                navigator.userAgent.match(/iPhone|iPad|iPod/i) ||
                navigator.userAgent.match(/Opera Mini/i) ||
                navigator.userAgent.match(/IEMobile/i) || 
                navigator.userAgent.match(/iPhone|iPad|iPod/i)
              )
            {
              return true;
            }
            else
            {
              return false;
            }
        }

        // Close TOC
        function closTOC(){
            $("#toc").hide("slide", 500);
            $("#toctitle").hide("slide", 500);
            if(!isMobileDevice()){
                $(".ui-resizable-e").hide("slide", 500);
            }
            // Show the show/hide button
            $("#toggle").css("right", "-40px");
            // Fil width
            $("body").animate({"margin-left": "50px"}, 500);
        }

        // Open TOC
        function openTOC(){
            $("#toc").show("slide", 500);
            $("#toctitle").show("slide", 500);
            if(!isMobileDevice()){
              $(".ui-resizable-e").show("slide", 500);
            }
            // Show the show/hide button
            $("#toggle").css("right", "15px");
            // Minimize page width
            $("body").animate({"margin-left": $(toc).outerWidth()+20+"px"}, 500);
        }

      });

</script>
++++
endif::backend-xhtml11[]