diff --git a/tools/droiddoc/templates-sdk/components/masthead.cs b/tools/droiddoc/templates-sdk/components/masthead.cs
index 3135a0c..4d3b02d 100644
--- a/tools/droiddoc/templates-sdk/components/masthead.cs
+++ b/tools/droiddoc/templates-sdk/components/masthead.cs
@@ -157,7 +157,36 @@
   <?cs elif:training || guide || reference || tools || develop || google || samples ?>
     <!-- Secondary x-nav -->
     <div id="nav-x">
-        <div class="wrap">
+        <div class="wrap" style="position:relative">
+
+        <?cs if:reference ?>
+            <a id="helpoutsLink" class="resource resource-card resource-card-6x2x3 resource-card-6x2 helpouts-card" 
+              href="http://helpouts.google.com/partner/landing/provider/googledevelopers" target="_blank">
+              <div class="card-bg helpouts-card-bg"></div>
+              <div class="card-info">
+                <div class="helpouts-description">
+                  <div class="text">Help developers solve problems<br/>
+                    <span id="helpoutsLinkText" class="link-color" style="display:block;padding-top:5px;text-align:right">Learn more</span>
+                  </div>
+                </div>
+              </div>
+            </a>
+            <script>
+              var textA = "LEARN MORE";
+              var linkA = "http://helpouts.google.com/partner/landing/provider/googledevelopers?utm_source=android_banner1&utm_medium=banner&utm_campaign=android_provider_banner1";
+              var textB = "SIGN UP NOW";
+              var linkB = "http://helpouts.google.com/partner/landing/provider/googledevelopers?utm_source=android_banner2&utm_medium=banner&utm_campaign=android_provider_banner2";
+
+              if (Math.floor(1/Math.random()) > 1) {
+                $("a#helpoutsLink").attr('href', linkA);
+                $("span#helpoutsLinkText").text(textA);
+              } else {
+                $("a#helpoutsLink").attr('href', linkB);
+                $("span#helpoutsLinkText").text(textB);
+              }
+            </script>
+        <?cs /if ?>
+
             <ul class="nav-x col-9 develop" style="width:100%">
                 <li class="training"><a href="<?cs var:toroot ?>training/index.html"
                   zh-tw-lang="訓練課程"