diff --git a/source/javascripts/app/_toc.js b/source/javascripts/app/_toc.js
index 44f704f..21d0800 100644
--- a/source/javascripts/app/_toc.js
+++ b/source/javascripts/app/_toc.js
@@ -48,6 +48,7 @@
   $(function() {
     makeToc();
     animate();
+    setupLanguages($('body').data('languages'));
     $('.content').imagesLoaded( function() {
       global.toc.calculateHeights();
     });
diff --git a/source/layouts/layout.erb b/source/layouts/layout.erb
index 1d2434d..24e9e43 100644
--- a/source/layouts/layout.erb
+++ b/source/layouts/layout.erb
@@ -13,7 +13,7 @@ WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 License for the specific language governing permissions and limitations
 under the License.
 %>
-<% language_tabs = current_page.data.language_tabs %>
+<% language_tabs = current_page.data.language_tabs || [] %>
 <!doctype html>
 <html>
   <head>
@@ -32,17 +32,9 @@ under the License.
     <% else %>
       <%= javascript_include_tag  "all_nosearch" %>
     <% end %>
-
-    <% if language_tabs %>
-      <script>
-        $(function() {
-          setupLanguages(<%= language_tabs.map{ |lang| lang.is_a?(Hash) ? lang.keys.first : lang }.to_json %>);
-        });
-      </script>
-    <% end %>
   </head>
 
-  <body class="<%= page_classes %>">
+  <body class="<%= page_classes %>" data-languages="<%=h language_tabs.map{ |lang| lang.is_a?(Hash) ? lang.keys.first : lang }.to_json %>">
     <a href="#" id="nav-button">
       <span>
         NAV
