添加顶部按钮开关

@@ -369,7 +369,7 @@ class AbstractAction extends Controller_Abstract
      * @param string $homeUrl 返回首页的链接
      * @return void
      */
-    protected function setNavHeader($title = '', $backUrl = true, $homeUrl = '/')
+    protected function setNavHeader($title = '', $backUrl = true, $homeUrl = '/', $navBtn = false)
     {
         $header = array();
 
@@ -387,6 +387,9 @@ class AbstractAction extends Controller_Abstract
         if (!empty($homeUrl)) {
             $header['navHome'] = $homeUrl . '?go=1&t=' . time();
         }
+        if ($navBtn) {
+            $header['navBtn'] = true;
+        }
 
 	    $controller = $this->getRequest()->getControllerName();
 		if ($controller !== 'Home') {