Issue 4189 - Sections not expanding on the blog page on adblockplus.org

static/js/main.js

 "use strict";
 
 (function()
 {
   function escapeRegExp(string)
   {
     return string.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
   }
 
   function hasClass(element, className)
@@ skipping 30 matching lines @@
     if (typeof window.event !== "undefined"
         && typeof window.event.cancelBubble !== "undefined")
       window.event.cancelBubble = true;
     else
       event.stopPropagation();
   }
 
   function initLanguageSelection()
   {
     var language = document.getElementById("language");
+
+    // skip if page does not have language selection (EG: blog)
+    if (!language)
+      return;
+
     var languageSelection = language.getElementsByTagName("ul")[0];
 
     document.documentElement.onclick = function()
     {
       removeClass(languageSelection, "visible");
     };
 
     language.onclick = function(event)
     {
       if (hasClass(languageSelection, "visible"))
@@ skipping 50 matching lines @@
     {
       var section = footerNavSections[i];
       initFooterSection(section);
     }
   }
 
   initLanguageSelection();
   initMenu();
   initFooter();
 })();