Issue 1112 - Properly use polyfills in firstrun and settings pages

html/static/js/settings.js

 "use strict";
 
 (function()
 {
   function init()
   {
     var manageButton = document.getElementById("manageExceptions");
-    manageButton.addEventListener("click", toggleManage);

[Felix Dahlke, 2014/07/23 12:45:17]

Might keep the false too.

+    manageButton.addEventListener("click", toggleManage, false);
   }
   
   function toggleManage(ev)
   {
     var exceptions = document.getElementById("exceptions");
     
     if (exceptions.getAttribute("class"))
       exceptions.removeAttribute("class");
     else
       exceptions.setAttribute("class", "visible");
     
     // IE6-only
     if (exceptions.getAttribute("className"))
       exceptions.removeAttribute("className");
     else
       exceptions.setAttribute("className", "visible");
   }
   
   init();
 })();