diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 8cbf7f3..ac0e4c7 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -33,11 +33,7 @@
 </footer>
 
 </div>
-<div class="mobile-nav-wrapper hidden">
-  <div class="mobile-nav-cover"></div>
-  <a href="#navigation" class="mobile-nav-toggle" aria-haspopup="true" role="button">{{ i18n "menu_mobile" }}</a>
-  <div class="mobile-nav-sheet"></div>
-</div>
+{{ if $.Param "mobilemenu" }}{{ partial "mobilemenu.html" . }}{{ end -}}
 {{ partial "scripts.html" . -}}
 {{ partialCached "scripts_cache.html" . -}}
 </body>
diff --git a/layouts/partials/mobilemenu.html b/layouts/partials/mobilemenu.html
new file mode 100644
index 0000000..aa0e8d3
--- /dev/null
+++ b/layouts/partials/mobilemenu.html
@@ -0,0 +1,5 @@
+<div class="mobile-nav-wrapper hidden">
+  <div class="mobile-nav-cover"></div>
+  <a href="#navigation" class="mobile-nav-toggle" aria-haspopup="true" role="button">{{ i18n "menu_mobile" }}</a>
+  <div class="mobile-nav-sheet"></div>
+</div>
diff --git a/static/js/script.js b/static/js/script.js
index d82655e..d57c8a1 100644
--- a/static/js/script.js
+++ b/static/js/script.js
@@ -11,15 +11,15 @@
   $('html').removeClass('nojs').addClass('js');
 
   // Activate the mobil menu for small screens.
-  if (window.matchMedia) {
+  if (window.matchMedia && $('.mobile-nav-wrapper').length) {
     var mq = window.matchMedia('(max-width: 666px)');
     if (mq.matches) {
       // Show mobile menu.
       $('.mobile-nav-wrapper').removeClass('hidden');
 
       // Populate the mobile nav sheet.
-      $('.header__region').removeClass('header__region region hidden').addClass('js-region').appendTo('.mobile-nav-sheet');
-      $('.main-menu').addClass('hidden').clone().removeClass('main-menu layout__navigation layout__full hidden hidden').addClass('js-main-menu').appendTo('.mobile-nav-sheet').find('.navbar').removeClass('navbar').addClass('js-navbar');
+      $('.header__region').filter(':not(:empty)').removeClass('header__region region hidden').addClass('js-region').appendTo('.mobile-nav-sheet');
+      $('.main-menu').addClass('hidden').clone().removeClass('main-menu layout__navigation layout__full hidden').addClass('js-main-menu').appendTo('.mobile-nav-sheet').find('.navbar').removeClass('navbar').addClass('js-navbar');
 
       // Toggle the mobile nav sheet.
       $('.mobile-nav-cover, .mobile-nav-toggle').on('click toushstart', function (e) {