diff --git a/tools/droiddoc/templates-sdk-dev/components/masthead.cs b/tools/droiddoc/templates-sdk-dev/components/masthead.cs
index b105b52..d48ea29 100644
--- a/tools/droiddoc/templates-sdk-dev/components/masthead.cs
+++ b/tools/droiddoc/templates-sdk-dev/components/masthead.cs
@@ -1,295 +1,375 @@
 <?cs def:custom_masthead() ?>
-  <a name="top"></a>
+<?cs if:preview ?>
+  <?cs call:preview_masthead() ?>
+<?cs else ?>
+<a name="top"></a>
+
+<!-- dialog to prompt lang pref change when loaded from hardcoded URL
+<div id="langMessage" style="display:none">
+  <div>
+    <div class="lang en">
+      <p>You requested a page in English, would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang es">
+      <p>You requested a page in Spanish (Español), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang ja">
+      <p>You requested a page in Japanese (日本語), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang ko">
+      <p>You requested a page in Korean (한국어), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang ru">
+      <p>You requested a page in Russian (Русский), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang zh-cn">
+      <p>You requested a page in Simplified Chinese (简体中文), would you like to proceed with this language setting?</p>
+    </div>
+    <div class="lang zh-tw">
+      <p>You requested a page in Traditional Chinese (繁體中文), would you like to proceed with this language setting?</p>
+    </div>
+    <a href="#" class="button yes" onclick="return false;">
+      <span class="lang en">Yes</span>
+      <span class="lang es">Sí</span>
+      <span class="lang ja">Yes</span>
+      <span class="lang ko">Yes</span>
+      <span class="lang ru">Yes</span>
+      <span class="lang zh-cn">是的</span>
+      <span class="lang zh-tw">没有</span>
+    </a>
+    <a href="#" class="button" onclick="$('#langMessage').hide();return false;">
+      <span class="lang en">No</span>
+      <span class="lang es">No</span>
+      <span class="lang ja">No</span>
+      <span class="lang ko">No</span>
+      <span class="lang ru">No</span>
+      <span class="lang zh-cn">没有</span>
+      <span class="lang zh-tw">没有</span>
+    </a>
+  </div>
+</div> -->
+
+<?cs if:!devsite ?><?cs # leave out the global header for devsite; it is in devsite template ?>
   <!-- Header -->
   <div id="header-wrapper">
-    <div class="dac-header <?cs if:ndk ?>dac-ndk<?cs /if ?>" id="header">
-      <div class="dac-header-inner">
-        <a class="dac-nav-toggle" data-dac-toggle-nav href="javascript:;" title="Open navigation">
-          <span class="dac-nav-hamburger">
-            <span class="dac-nav-hamburger-top"></span>
-            <span class="dac-nav-hamburger-mid"></span>
-            <span class="dac-nav-hamburger-bot"></span>
-          </span>
-        </a>
-        <?cs if:ndk ?><a class="dac-header-logo" style="width:144px;" href="<?cs var:toroot
-        ?>ndk/index.html">
-          <img class="dac-header-logo-image" src="<?cs var:toroot ?>assets/images/android_logo.png"
-              srcset="<?cs var:toroot ?>assets/images/android_logo@2x.png 2x"
-              width="32" height="36" alt="Android" /> NDK
-          </a><?cs else ?><a class="dac-header-logo" href="<?cs var:toroot ?>index.html">
-          <img class="dac-header-logo-image" src="<?cs var:toroot ?>assets/images/android_logo.png"
-              srcset="<?cs var:toroot ?>assets/images/android_logo@2x.png 2x"
-              width="32" height="36" alt="Android" /> Developers
-          </a><?cs /if ?>
+    <div id="header"><?cs call:butter_bar() ?>
+      <div class="wrap" id="header-wrap">
+        <div class="col-3 logo">
+          <a href="<?cs var:toroot ?>index.html">
+            <img src="<?cs var:toroot ?>assets/images/dac_logo.png"
+                srcset="<?cs var:toroot ?>assets/images/dac_logo@2x.png 2x"
+                width="123" height="25" alt="Android Developers" />
+          </a>
+          <div class="btn-quicknav" id="btn-quicknav">
+            <a href="#" class="arrow-inactive">Quicknav</a>
+            <a href="#" class="arrow-active">Quicknav</a>
+          </div>
+        </div>
+        <ul class="nav-x col-9">
+            <li class="design">
+              <a href="<?cs var:toroot ?>design/index.html"
+              zh-tw-lang="設計"
+              zh-cn-lang="设计"
+              ru-lang="Проектирование"
+              ko-lang="디자인"
+              ja-lang="設計"
+              es-lang="Diseñar"
+              >Design</a></li>
+            <li class="develop"><a href="<?cs var:toroot ?>develop/index.html"
+              zh-tw-lang="開發"
+              zh-cn-lang="开发"
+              ru-lang="Разработка"
+              ko-lang="개발"
+              ja-lang="開発"
+              es-lang="Desarrollar"
+              >Develop</a></li>
+            <li class="distribute last"><a href="<?cs var:toroot ?>distribute/<?cs
+              if:android.whichdoc == "offline" ?>googleplay/<?cs /if ?>index.html"
+              zh-tw-lang="發佈"
+              zh-cn-lang="分发"
+              ru-lang="Распространение"
+              ko-lang="배포"
+              ja-lang="配布"
+              es-lang="Distribuir"
+              >Distribute</a></li>
+        </ul>
 
-        <?cs if:ndk
-        ?><ul class="dac-header-tabs">
-          <li>
-            <a href="<?cs var:toroot ?>ndk/guides/index.html" class="dac-header-tab"
-            zh-tw-lang="API 指南"
-            zh-cn-lang="API 指南"
-            ru-lang="Руководства по API"
-            ko-lang="API 가이드"
-            ja-lang="API ガイド"
-            es-lang="Guías de la API">Guides</a>
-          </li>
-          <li>
-            <a href="<?cs var:toroot ?>ndk/reference/index.html" class="dac-header-tab"
-            zh-tw-lang="參考資源"
-            zh-cn-lang="参考"
-            ru-lang="Справочник"
-            ko-lang="참조문서"
-            ja-lang="リファレンス"
-            es-lang="Referencia">Reference</a>
-          </li>
-          <li>
-            <a href="<?cs var:toroot ?>ndk/samples/index.html" class="dac-header-tab"
-           >Samples</a>
-          </li>
-          <li>
-            <a href="<?cs var:toroot ?>ndk/downloads/index.html" class="dac-header-tab"
-            >Downloads</a>
-          </li>
-        </ul><?cs else
-        ?><ul class="dac-header-tabs">
-          <li>
-          <a class="dac-header-tab" href="<?cs var:toroot ?>design/index.html"
-             zh-tw-lang="設計"
-             zh-cn-lang="设计"
-             ru-lang="Проектирование"
-             ko-lang="디자인"
-             ja-lang="設計"
-             es-lang="Diseñar">Design</a>
-          </li>
-          <li>
-          <a class="dac-header-tab" href="<?cs var:toroot ?>develop/index.html"
-             zh-tw-lang="開發"
-             zh-cn-lang="开发"
-             ru-lang="Разработка"
-             ko-lang="개발"
-             ja-lang="開発"
-             es-lang="Desarrollar">Develop</a>
-          </li>
-          <li>
-          <a class="dac-header-tab" href="<?cs var:toroot ?>distribute/index.html"
-             zh-tw-lang="發佈"
-             zh-cn-lang="分发"
-             ru-lang="Распространение"
-             ko-lang="배포"
-             ja-lang="配布"
-             es-lang="Distribuir">Distribute</a>
-          </li>
-        </ul><?cs
-        /if ?>
-
-        <?cs if:ndk ?><a class="dac-header-console-btn" href="http://developer.android.com">
-          Back to Android Developers
-        </a><?cs else ?><a class="dac-header-console-btn" href="https://play.google.com/apps/publish/">
-          <span class="dac-sprite dac-google-play"></span>
-          <span class="dac-visible-desktop-inline">Developer</span>
-          Console
-        </a><?cs /if ?>
 
         <?cs # ADD SEARCH AND MENU ?>
-        <?cs if:!ndk ?>
         <?cs call:header_search_widget() ?>
-        <?cs /if ?>
+
+
+        <!-- Expanded quicknav -->
+        <div id="quicknav" class="col-13">
+          <ul>
+            <li class="about">
+              <ul>
+                <li><a href="<?cs var:toroot ?>about/index.html">About</a></li>
+                <li><a href="<?cs var:toroot ?>wear/index.html">Wear</a></li>
+                <li><a href="<?cs var:toroot ?>tv/index.html">TV</a></li>
+                <li><a href="<?cs var:toroot ?>auto/index.html">Auto</a></li>
+              </ul>
+            </li>
+            <li class="design">
+              <ul>
+                <li><a href="<?cs var:toroot ?>design/index.html">Get Started</a></li>
+                <li><a href="<?cs var:toroot ?>design/devices.html">Devices</a></li>
+                <li><a href="<?cs var:toroot ?>design/style/index.html">Style</a></li>
+                <li><a href="<?cs var:toroot ?>design/patterns/index.html">Patterns</a></li>
+                <li><a href="<?cs var:toroot ?>design/building-blocks/index.html">Building Blocks</a></li>
+                <li><a href="<?cs var:toroot ?>design/downloads/index.html">Downloads</a></li>
+                <li><a href="<?cs var:toroot ?>design/videos/index.html">Videos</a></li>
+              </ul>
+            </li>
+            <li class="develop">
+              <ul>
+                <li><a href="<?cs var:toroot ?>training/index.html"
+                  zh-tw-lang="訓練課程"
+                  zh-cn-lang="培训"
+                  ru-lang="Курсы"
+                  ko-lang="교육"
+                  ja-lang="トレーニング"
+                  es-lang="Capacitación"
+                  >Training</a></li>
+                <li><a href="<?cs var:toroot ?>guide/index.html"
+                  zh-tw-lang="API 指南"
+                  zh-cn-lang="API 指南"
+                  ru-lang="Руководства по API"
+                  ko-lang="API 가이드"
+                  ja-lang="API ガイド"
+                  es-lang="Guías de la API"
+                  >API Guides</a></li>
+                <li><a href="<?cs var:toroot ?>reference/packages.html"
+                  zh-tw-lang="參考資源"
+                  zh-cn-lang="参考"
+                  ru-lang="Справочник"
+                  ko-lang="참조문서"
+                  ja-lang="リファレンス"
+                  es-lang="Referencia"
+                  >Reference</a></li>
+                <li><a href="<?cs var:toroot ?>sdk/index.html"
+                  zh-tw-lang="相關工具"
+                  zh-cn-lang="工具"
+                  ru-lang="Инструменты"
+                  ko-lang="도구"
+                  ja-lang="ツール"
+                  es-lang="Herramientas"
+                  >Tools</a>
+                </li>
+                <li><a href="<?cs var:toroot ?>google/index.html">Google Services</a>
+                </li>
+                <?cs if:android.hasSamples ?>
+                  <li><a href="<?cs var:toroot ?>samples/index.html">Samples</a>
+                  </li>
+                <?cs /if ?>
+              </ul>
+            </li>
+            <li class="distribute last">
+              <ul>
+                <li><a href="<?cs var:toroot ?>distribute/googleplay/index.html">Google Play</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/essentials/index.html">Essentials</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/users/index.html">Get Users</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/engage/index.html">Engage &amp; Retain</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/monetize/index.html">Monetize</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/analyze/index.html">Analyze</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/tools/index.html">Tools &amp; Reference</a></li>
+                <li><a href="<?cs var:toroot ?>distribute/stories/index.html">Developer Stories</a></li>
+              </ul>
+            </li>
+          </ul>
+        </div><!-- /Expanded quicknav -->
       </div><!-- end header-wrap.wrap -->
     </div><!-- end header -->
-  </div> <!--end header-wrapper -->
 
-  <?cs if:ndk ?>
-  <!-- NDK Navigation-->
-  <nav class="dac-nav">
-    <div class="dac-nav-dimmer" data-dac-toggle-nav></div>
-
-    <div class="dac-nav-sidebar" data-swap data-dynamic="false" data-transition-speed="300" data-dac-nav>
-                   <div data-swap-container>
-        <?cs call:custom_left_nav() ?>
-      <ul id="dac-main-navigation" class="dac-nav-list dac-swap-section dac-left dac-no-anim">
-      <li class="dac-nav-item guides">
-        <a class="dac-nav-link" href="<?cs var:toroot ?>ndk/guides/index.html"
-           zh-tw-lang="API 指南"
-           zh-cn-lang="API 指南"
-           ru-lang="Руководства по API"
-           ko-lang="API 가이드"
-           ja-lang="API ガイド"
-           es-lang="Guías de la API">Guides</a>
-      </li>
-      <li class="dac-nav-item reference">
-        <a class="dac-nav-link" href="<?cs var:toroot ?>ndk/reference/index.html"
-           zh-tw-lang="參考資源"
-           zh-cn-lang="参考"
-           ru-lang="Справочник"
-           ko-lang="참조문서"
-           ja-lang="リファレンス"
-           es-lang="Referencia">Reference</a>
-      </li>
-      <li class="dac-nav-item samples">
-        <a class="dac-nav-link" href="<?cs var:toroot ?>ndk/samples/index.html"
-           >Samples</a>
-      </li>
-      <li class="dac-nav-item downloads">
-        <a class="dac-nav-link" href="<?cs var:toroot ?>ndk/downloads/index.html"
-           >Downloads</a>
-      </li>
-      </ul>
+  <?cs if:about || wear || tv || auto ?>
+    <!-- Secondary x-nav -->
+    <div id="nav-x">
+        <div class="wrap">
+            <ul class="nav-x col-9 about" style="width:100%">
+                <li class="about"><a href="<?cs var:toroot ?>about/index.html"
+                  >About</a></li>
+                <li class="wear"><a href="<?cs var:toroot ?>wear/index.html"
+                  >Wear</a></li>
+                <li class="tv"><a href="<?cs var:toroot ?>tv/index.html"
+                  >TV</a></li>
+                <li class="auto"><a href="<?cs var:toroot ?>auto/index.html"
+                  >Auto</a></li>
+            </ul>
+        </div>
     </div>
-                       </div>
-  </nav>
-  <!-- end NDK navigation-->
+    <!-- /Sendondary x-nav ABOUT -->
 
 
 
-  <?cs else ?>
-  <!-- Navigation-->
-  <nav class="dac-nav">
-    <div class="dac-nav-dimmer" data-dac-toggle-nav></div>
+  <?cs elif:training || guide || reference || tools || develop || google || samples ?>
+    <!-- Secondary x-nav -->
+    <div id="nav-x">
+        <div class="wrap" style="position:relative;z-index:1">
 
-    <div class="dac-nav-sidebar" data-swap data-dynamic="false" data-transition-speed="300" data-dac-nav>
-      <div data-swap-container>
-        <?cs call:custom_left_nav() ?>
-        <ul id="dac-main-navigation" class="dac-nav-list dac-swap-section dac-left dac-no-anim">
-        <li class="dac-nav-item home">
-          <a class="dac-nav-link" href="<?cs var:toroot ?>index.html">Home</a>
-          <i class="dac-sprite dac-expand-more-black dac-nav-sub-slider"></i>
-          <ul class="dac-nav-secondary about">
-            <li class="dac-nav-item versions">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>about/versions/marshmallow/index.html">Android</a>
-            </li>
-            <li class="dac-nav-item wear">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>wear/index.html">Wear</a>
-            </li>
-            <li class="dac-nav-item tv">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>tv/index.html">TV</a>
-            </li>
-            <li class="dac-nav-item auto">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>auto/index.html">Auto</a>
-            </li>
-          </ul>
-        </li>
-        <li class="dac-nav-item design">
-          <a class="dac-nav-link" href="<?cs var:toroot ?>design/index.html"
-             zh-tw-lang="設計"
-             zh-cn-lang="设计"
-             ru-lang="Проектирование"
-             ko-lang="디자인"
-             ja-lang="設計"
-             es-lang="Diseñar">Design</a>
-        </li>
-        <li class="dac-nav-item develop">
-          <a class="dac-nav-link" href="<?cs var:toroot ?>develop/index.html"
-             zh-tw-lang="開發"
-             zh-cn-lang="开发"
-             ru-lang="Разработка"
-             ko-lang="개발"
-             ja-lang="開発"
-             es-lang="Desarrollar">Develop</a>
-          <i class="dac-sprite dac-expand-more-black dac-nav-sub-slider"></i>
-          <ul class="dac-nav-secondary develop">
-            <li class="dac-nav-item training">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>training/index.html"
-                 zh-tw-lang="訓練課程"
-                 zh-cn-lang="培训"
-                 ru-lang="Курсы"
-                 ko-lang="교육"
-                 ja-lang="トレーニング"
-                 es-lang="Capacitación">Training</a>
-            </li>
-            <li class="dac-nav-item guide">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>guide/index.html"
-                 zh-tw-lang="API 指南"
-                 zh-cn-lang="API 指南"
-                 ru-lang="Руководства по API"
-                 ko-lang="API 가이드"
-                 ja-lang="API ガイド"
-                 es-lang="Guías de la API">API Guides</a>
-            </li>
-            <li class="dac-nav-item reference">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>reference/packages.html"
-                 zh-tw-lang="參考資源"
-                 zh-cn-lang="参考"
-                 ru-lang="Справочник"
-                 ko-lang="참조문서"
-                 ja-lang="リファレンス"
-                 es-lang="Referencia">Reference</a>
-            </li>
-            <li class="dac-nav-item tools">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>sdk/index.html"
-                 zh-tw-lang="相關工具"
-                 zh-cn-lang="工具"
-                 ru-lang="Инструменты"
-                 ko-lang="도구"
-                 ja-lang="ツール"
-                 es-lang="Herramientas">Tools</a></li>
-            <li class="dac-nav-item google">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>google/index.html">Google Services</a>
-            </li>
-            <?cs if:android.hasSamples ?>
-            <li class="dac-nav-item samples">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>samples/index.html">Samples</a>
-            </li>
-            <?cs /if ?>
-          </ul>
-        </li>
-        <li class="dac-nav-item distribute">
-          <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/<?cs if:android.whichdoc == 'offline' ?>googleplay/<?cs /if ?>index.html"
-             zh-tw-lang="發佈"
-             zh-cn-lang="分发"
-             ru-lang="Распространение"
-             ko-lang="배포"
-             ja-lang="配布"
-             es-lang="Distribuir">Distribute</a>
-          <i class="dac-sprite dac-expand-more-black dac-nav-sub-slider"></i>
-          <ul class="dac-nav-secondary distribute">
-            <li class="dac-nav-item googleplay">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/googleplay/index.html">Google Play</a></li>
-            <li class="dac-nav-item essentials">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/essentials/index.html">Essentials</a></li>
-            <li class="dac-nav-item users">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/users/index.html">Get Users</a></li>
-            <li class="dac-nav-item engage">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/engage/index.html">Engage &amp; Retain</a></li>
-            <li class="dac-nav-item monetize">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/monetize/index.html">Earn</a>
-            </li>
-            <li class="dac-nav-item analyze">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/analyze/index.html">Analyze</a>
-            </li>
-            <li class="dac-nav-item stories">
-              <a class="dac-nav-link" href="<?cs var:toroot ?>distribute/stories/index.html">Stories</a>
-            </li>
-          </ul>
-        </li>
-        <li class="dac-nav-item preview">
-          <a class="dac-nav-link" href="<?cs var:toroot ?>preview/index.html">Preview</a>
-        </li>
-        </ul>
-      </div>
+        <?cs if:reference ?>
+
+        <?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"
+                  zh-cn-lang="培训"
+                  ru-lang="Курсы"
+                  ko-lang="교육"
+                  ja-lang="トレーニング"
+                  es-lang="Capacitación"
+                  >Training</a></li>
+                <li class="guide"><a href="<?cs var:toroot ?>guide/index.html"
+                  zh-tw-lang="API 指南"
+                  zh-cn-lang="API 指南"
+                  ru-lang="Руководства по API"
+                  ko-lang="API 가이드"
+                  ja-lang="API ガイド"
+                  es-lang="Guías de la API"
+                  >API Guides</a></li>
+                <li class="reference"><a href="<?cs var:toroot ?>reference/packages.html"
+                  zh-tw-lang="參考資源"
+                  zh-cn-lang="参考"
+                  ru-lang="Справочник"
+                  ko-lang="참조문서"
+                  ja-lang="リファレンス"
+                  es-lang="Referencia"
+                  >Reference</a></li>
+                <li class="tools"><a href="<?cs var:toroot ?>sdk/index.html"
+                  zh-tw-lang="相關工具"
+                  zh-cn-lang="工具"
+                  ru-lang="Инструменты"
+                  ko-lang="도구"
+                  ja-lang="ツール"
+                  es-lang="Herramientas"
+                  >Tools</a></li>
+                <li class="google"><a href="<?cs var:toroot ?>google/index.html"
+                  >Google Services</a>
+                </li>
+                <?cs if:android.hasSamples ?>
+                  <li class="samples"><a href="<?cs var:toroot ?>samples/index.html"
+                    >Samples</a>
+                  </li>
+                <?cs /if ?>
+            </ul>
+        </div>
     </div>
-  </nav>
-  <!-- end navigation-->
+    <!-- /Sendondary x-nav DEVELOP -->
+
+  <?cs elif:distribute || googleplay || essentials || users || engage || monetize || analyze ||  disttools || stories ?>
+    <!-- Secondary distribute x-nav -->
+    <div id="nav-x">
+        <div class="wrap">
+            <ul class="nav-x distribute">
+                <li class="googleplay"><a href="<?cs var:toroot ?>distribute/googleplay/index.html"
+                  >Google Play</a></li>
+                <li class="essentials"><a href="<?cs var:toroot ?>distribute/essentials/index.html"
+                  >Essentials</a></li>
+                <li class="users"><a href="<?cs var:toroot ?>distribute/users/index.html"
+                  >Get Users</a></li>
+                <li class="engage"><a href="<?cs var:toroot ?>distribute/engage/index.html"
+                  >Engage &amp; Retain</a></li>
+                <li class="monetize"><a href="<?cs var:toroot ?>distribute/monetize/index.html"
+                  >Monetize</a>
+                </li>
+                <li class="analyze"><a href="<?cs var:toroot ?>distribute/analyze/index.html"
+                  >Analyze</a>
+                </li>
+                <li class="disttools"><a href="<?cs var:toroot ?>distribute/tools/index.html"
+                  >Tools</a>
+                </li>
+                <li class="stories"><a href="<?cs var:toroot ?>distribute/stories/index.html"
+                  >Stories</a>
+                </li>
+            </ul>
+            <a href="https://play.google.com/apps/publish/" class="developer-console-btn">Developer Console</a>
+        </div> <!-- /Secondary distribute x-nav -->
+    </div>
+    <!-- /Sendondary x-nav DISTRIBUTE -->
   <?cs /if ?>
 
-<!-- Nav Setup -->
-<script>$('[data-dac-nav]').dacNav();</script>
+    <div id="searchResults" class="wrap" style="display:none;">
+      <h2 id="searchTitle">Results</h2>
+      <div id="leftSearchControl" class="search-control">Loading...</div>
+    </div>
+  </div> <!--end header-wrapper -->
 
-<?cs
-/def ?><?cs # end custom_masthead() ?>
-
-
-<?cs def:toast() ?>
-
-  <?cs # (UN)COMMENT TO TOGGLE VISIBILITY
-
-  <div class="dac-toast-group">
-    <div class="dac-toast" data-toast>
-      <div class="dac-toast-wrap">
-        This is a demo notification <a href="#">Learn more</a>.
-      </div>
+  <div id="sticky-header">
+    <div>
+      <a class="logo" href="#top"></a>
+      <a class="top" href="#top"></a>
+      <ul class="breadcrumb">
+        <?cs # More <li> elements added here with javascript ?>
+        <?cs if:!section.landing ?><li class="current"><?cs var:page.title ?></li><?cs
+        /if ?>
+      </ul>
     </div>
   </div>
 
+<?cs /if ?><?cs # end if/else !devsite ?>
+<?cs /if ?><?cs # end if/else preview ?><?cs
+/def ?>
+
+<?cs def:preview_masthead() ?>
+<a name="top"></a>
+
+
+<!-- Header -->
+<div id="header-wrapper">
+  <div id="header"><?cs call:butter_bar() ?>
+    <div class="wrap" id="header-wrap">
+      <div class="col_3 logo landing-logo" style="width:240px">
+        <a href="<?cs var:toroot ?>preview/index.html">
+          <img src="<?cs var:toroot ?>assets/images/android.png" height="25" alt="Android"
+            style="margin:-3px 0 0" />
+        </a>
+      </div>
+      <div class="col-8" style="margin:0"><h1 style="margin: 4px 0 0 0px;padding:0;line-height:16px;
+color:#666;font-weight:100;font-size:27px;">M Developer Preview</h1></div>
+
+      <?cs # ADD SEARCH AND MENU ?>
+      <?cs call:header_search_widget() ?>
+
+    </div><!-- end header-wrap -->
+  </div><!-- /Header -->
+
+
+  <div id="searchResults" class="wrap" style="display:none;">
+          <h2 id="searchTitle">Results</h2>
+          <div id="leftSearchControl" class="search-control">Loading...</div>
+  </div>
+</div> <!--end header-wrapper -->
+
+<div id="sticky-header">
+  <div>
+    <a class="logo" href="#top"></a>
+    <a class="top" href="#top"></a>
+    <ul class="breadcrumb">
+      <?cs # More <li> elements added here with javascript ?>
+      <?cs if:!section.landing ?><li class="current"><?cs var:page.title ?></li><?cs
+      /if ?>
+    </ul>
+  </div>
+</div>
+
+  <?cs
+/def ?>
+
+
+<?cs # (UN)COMMENT THE INSIDE OF THIS METHOD TO TOGGLE VISIBILITY ?>
+<?cs def:butter_bar() ?>
+
+<?cs # HIDE THE BUTTER BAR
+
+    <div style="height:20px"><!-- spacer to bump header down --></div>
+    <div id="butterbar-wrapper">
+      <div id="butterbar">
+        <a href="http://googleblog.blogspot.com/" id="butterbar-message">
+          The Android {version_number} SDK will be available on {Month} {Day}!
+        </a>
+      </div>
+    </div>
+
 ?>
 
 <?cs /def ?>