Change navigation structure

Change-Id: I12c819293ce1eda188dc9f257ae9370f1b73cb18
Signed-off-by: Iftekharul Islam <iislam@us.ibm.com>
diff --git a/app/overview/controllers/system-overview-controller.js b/app/overview/controllers/system-overview-controller.js
index e3841cb..4992b1e 100644
--- a/app/overview/controllers/system-overview-controller.js
+++ b/app/overview/controllers/system-overview-controller.js
@@ -1,5 +1,5 @@
 /**
- * Controller for system overview
+ * Controller for systemOverview
  *
  * @module app/overview
  * @exports systemOverviewController
@@ -19,8 +19,10 @@
             'dataService',
             function($scope, $window, APIUtils, dataService, userModel){
                 $scope.dataService = dataService;
+
+                $scope.dropdown_selected = false;
             }
         ]
     );
 
-})(angular);
+})(angular);
\ No newline at end of file