diff --git a/demos/code/code.js b/demos/code/code.js
index a55633754..2dfebbbfb 100644
--- a/demos/code/code.js
+++ b/demos/code/code.js
@@ -382,7 +382,12 @@ Code.init = function() {
   };
   window.addEventListener('resize', onresize, false);
 
-  var toolbox = document.getElementById('toolbox');
+  // Interpolate translated messages into toolbox.
+  var toolboxText = document.getElementById('toolbox').outerHTML;
+  toolboxText = toolboxText.replace(/{(\w+)}/g,
+      function(m, p1) {return MSG[p1]});
+  var toolboxXml = Blockly.Xml.textToDom(toolboxText);
+
   Code.workspace = Blockly.inject('content_blocks',
       {grid:
           {spacing: 25,
@@ -391,7 +396,7 @@ Code.init = function() {
            snap: true},
        media: '../../media/',
        rtl: rtl,
-       toolbox: toolbox,
+       toolbox: toolboxXml,
        zoom:
            {controls: true,
             wheel: true}
@@ -481,20 +486,6 @@ Code.initLanguage = function() {
   document.getElementById('linkButton').title = MSG['linkTooltip'];
   document.getElementById('runButton').title = MSG['runTooltip'];
   document.getElementById('trashButton').title = MSG['trashTooltip'];
-
-  var categories = ['catLogic', 'catLoops', 'catMath', 'catText', 'catLists',
-                    'catColour', 'catVariables', 'catFunctions'];
-  for (var i = 0, cat; cat = categories[i]; i++) {
-    document.getElementById(cat).setAttribute('name', MSG[cat]);
-  }
-  var textVars = document.getElementsByClassName('textVar');
-  for (var i = 0, textVar; textVar = textVars[i]; i++) {
-    textVar.textContent = MSG['textVariable'];
-  }
-  var listVars = document.getElementsByClassName('listVar');
-  for (var i = 0, listVar; listVar = listVars[i]; i++) {
-    listVar.textContent = MSG['listVariable'];
-  }
 };
 
 /**
diff --git a/demos/code/index.html b/demos/code/index.html
index 4e12249dd..54a59acda 100644
--- a/demos/code/index.html
+++ b/demos/code/index.html
@@ -74,7 +74,7 @@
   <textarea id="content_xml" class="content" wrap="off"></textarea>
 
   <xml id="toolbox" style="display: none">
-    <category id="catLogic" colour="210">
+    <category name="{catLogic}" colour="210">
       <block type="controls_if"></block>
       <block type="logic_compare"></block>
       <block type="logic_operation"></block>
@@ -83,7 +83,7 @@
       <block type="logic_null"></block>
       <block type="logic_ternary"></block>
     </category>
-    <category id="catLoops" colour="120">
+    <category name="{catLoops}" colour="120">
       <block type="controls_repeat_ext">
         <value name="TIMES">
           <shadow type="math_number">
@@ -112,7 +112,7 @@
       <block type="controls_forEach"></block>
       <block type="controls_flow_statements"></block>
     </category>
-    <category id="catMath" colour="230">
+    <category name="{catMath}" colour="230">
       <block type="math_number"></block>
       <block type="math_arithmetic">
         <value name="A">
@@ -206,7 +206,7 @@
       </block>
       <block type="math_random_float"></block>
     </category>
-    <category id="catText" colour="160">
+    <category name="{catText}" colour="160">
       <block type="text"></block>
       <block type="text_join"></block>
       <block type="text_append">
@@ -231,7 +231,7 @@
       <block type="text_indexOf">
         <value name="VALUE">
           <block type="variables_get">
-            <field name="VAR">text</field>
+            <field name="VAR">{textVariable}</field>
           </block>
         </value>
         <value name="FIND">
@@ -243,14 +243,14 @@
       <block type="text_charAt">
         <value name="VALUE">
           <block type="variables_get">
-            <field name="VAR">text</field>
+            <field name="VAR">{textVariable}</field>
           </block>
         </value>
       </block>
       <block type="text_getSubstring">
         <value name="STRING">
           <block type="variables_get">
-            <field name="VAR">text</field>
+            <field name="VAR">{textVariable}</field>
           </block>
         </value>
       </block>
@@ -283,7 +283,7 @@
         </value>
       </block>
     </category>
-    <category id="catLists" colour="260">
+    <category name="{catLists}" colour="260">
       <block type="lists_create_with">
         <mutation items="0"></mutation>
       </block>
@@ -300,28 +300,28 @@
       <block type="lists_indexOf">
         <value name="VALUE">
           <block type="variables_get">
-            <field name="VAR">list</field>
+            <field name="VAR">{listVariable}</field>
           </block>
         </value>
       </block>
       <block type="lists_getIndex">
         <value name="VALUE">
           <block type="variables_get">
-            <field name="VAR">list</field>
+            <field name="VAR">{listVariable}</field>
           </block>
         </value>
       </block>
       <block type="lists_setIndex">
         <value name="LIST">
           <block type="variables_get">
-            <field name="VAR">list</field>
+            <field name="VAR">{listVariable}</field>
           </block>
         </value>
       </block>
       <block type="lists_getSublist">
         <value name="LIST">
           <block type="variables_get">
-            <field name="VAR">list</field>
+            <field name="VAR">{listVariable}</field>
           </block>
         </value>
       </block>
@@ -334,7 +334,7 @@
       </block>
       <block type="lists_sort"></block>
     </category>
-    <category id="catColour" colour="20">
+    <category name="{catColour}" colour="20">
       <block type="colour_picker"></block>
       <block type="colour_random"></block>
       <block type="colour_rgb">
@@ -373,8 +373,8 @@
       </block>
     </category>
     <sep></sep>
-    <category id="catVariables" colour="330" custom="VARIABLE"></category>
-    <category id="catFunctions" colour="290" custom="PROCEDURE"></category>
+    <category name="{catVariables}" colour="330" custom="VARIABLE"></category>
+    <category name="{catFunctions}" colour="290" custom="PROCEDURE"></category>
   </xml>
 
 </body>