Merge pull request jsonwebtoken#215 from jsonwebtoken/banner-rotate

Improved banner performance

Author: diegopoza

js/app.js

@@ -719,18 +719,6 @@ $('.stars').each(function(idx, element){
     }
 });
 
-function rotateBanner() {
-    var extensionSection = $(".update-site");
-    var ebookSection = $(".jtw-ebook-banner");
-    if (Math.random() >= .5) {
-        extensionSection.show();
-    } else {
-        ebookSection.show();
-    }
-};
-
-rotateBanner();
-
 function setInstalledText() {
     var button = $('#extension-button');
     if(button && button.hasClass('is-installed')) {

views/index.jade

@@ -61,7 +61,17 @@ block content
     span
       strong Get the JWT Handbook for free! 
       |Spread the word and download it now.
-    a.btn.btn-download-ebook(href='https://auth0.com/e-books/jwt-handbook', target='_blank') Download Ebook
+    a.btn.btn-download-ebook(href='https://auth0.com/e-books/jwt-handbook?utm_source=jwtio&utm_medium=sc&utm_campaign=rotating_banner', target='_blank') Download Ebook
+  
+  script.
+    var extensionSection = document.getElementsByClassName("update-site")[0];
+    var ebookSection = document.getElementsByClassName("jtw-ebook-banner")[0];
+    if (Math.random() >= .5) {
+    extensionSection.style.display = 'block';
+    } else {
+    ebookSection.style.display = 'block';
+    }
+
   section#debugger-io.debugger-jwt
     .container
       //- a(name='debugger')
@@ -264,4 +274,4 @@ block content
         .column.tshirt
           h2 Store
           img(src='img/pic_tshirt.png')
-          a.buy(href='http://swag.auth0.com/', target='_blank') Buy T-Shirt
+          a.buy(href='http://swag.auth0.com/', target='_blank') Buy T-Shirt