diff --git a/templates/framework/maintabs.ezt b/templates/framework/maintabs.ezt
new file mode 100644
index 0000000..416b992
--- /dev/null
+++ b/templates/framework/maintabs.ezt
@@ -0,0 +1,99 @@
+[# Show top-level tabs.
+
+   Args:
+     arg0: Can be "showtabs", or "showusertabs" to select which
+         top-level tabs are shown.
+     arg1: String like "t1", "t2", "t3" to identify the currently active tab.
+]
+[if-any projectname]
+
+[# Non-fixed container around mr-header to allow the fixed header to "take up space". ]
+<div style="width: 100%; height: var(--monorail-header-height); margin-bottom: -1px;">
+  <mr-header
+    [if-any logged_in_user]
+    userDisplayName="[logged_in_user.email]"
+    [end]
+    projectThumbnailUrl="[project_thumbnail_url]"
+    projectName="[projectname]"
+    loginUrl="[login_url]"
+    logoutUrl="[logout_url]"
+  ></mr-header>
+</div>
+[else]
+<table id="monobar" width="100%" cellpadding="0" cellspacing="0" role="presentation">
+  <tr>
+    <th class="padded">
+      <a href="/" id="wordmark">[site_name]</a>
+    </th>
+    [if-any viewed_user]
+      <th class="padded">
+        User: <a href="[viewed_user.profile_url]">[viewed_user.display_name]</a>
+        [if-any viewed_user_pb.is_site_admin_bool]<i>(Administrator)</i>[end]
+      </th>
+    [end]
+    [if-any hotlist_id]
+      <th class="toptabs padded">
+      <a href="[hotlist.url]" title="[hotlist_id]"
+        id = "hotlists-dropdown">Hotlist: [hotlist.name] <small>&#9660;</small></a>
+      <a href="[hotlist.url]" class="[is main_tab_mode "ht2"]active[end]">Issues</a>
+      <a href="[hotlist.url]/people" class="[is main_tab_mode "ht3"]active[end]">People</a>
+      <a href="[hotlist.url]/details" class="[is main_tab_mode "ht4"]active[end]">Settings</a>
+      </th>
+    [end]
+
+    <td width="100%" id="userbar">
+      [include "user-bar.ezt"]
+    </td>
+  </tr>
+</table>
+[end]
+
+<script type="text/javascript" nonce="[nonce]">
+runOnLoad(function() {
+  if ($("hotlists-dropdown"))
+    $("hotlists-dropdown").addEventListener("click", function(event) {
+        event.preventDefault();
+    });
+});
+</script>
+
+[is arg0 "showtabs"]
+  <div class="subt">
+    [include "projecttabs.ezt"]
+  </div>
+[else][is arg0 "showusertabs"]
+  <div class="subt">
+    [include "../sitewide/usertabs.ezt" arg1]
+  </div>
+[else][is arg0 "showusergrouptabs"]
+  <div class="subt">
+    [include "../sitewide/usergrouptabs.ezt" arg1]
+  </div>
+[end][end][end]
+
+[if-any warnings]
+  <table align="center" border="0" cellspacing="0" cellpadding="0" style="margin-bottom: 6px">
+   [for warnings]
+     <tr><td class="notice">
+         [warnings]
+     </td></tr>
+   [end]
+  </table>
+[end]
+[if-any errors.query]
+  <table align="center" border="0" cellspacing="0" cellpadding="0" style="margin-bottom: 6px">
+   <tr><td class="notice">
+       [errors.query]
+   </td></tr>
+  </table>
+[end]
+
+[if-any site_read_only][else]
+  [if-any project_alert]
+    <div style="font-weight: bold; color: #c00; margin-top: 5px; display: block;">
+      [project_alert]
+    </div>
+  [end]
+[end]
+
+[include "../features/cues.ezt"]