diff --git a/400-SOURCECODE/AIAHTML5.Web/app/controllers/TileViewListController.js b/400-SOURCECODE/AIAHTML5.Web/app/controllers/TileViewListController.js
index 2f533c3..0c02152 100644
--- a/400-SOURCECODE/AIAHTML5.Web/app/controllers/TileViewListController.js
+++ b/400-SOURCECODE/AIAHTML5.Web/app/controllers/TileViewListController.js
@@ -1360,7 +1360,7 @@ function ($scope, $window, $rootScope, $compile, $http, $log, $location, $timeou
     }
 
     $rootScope.hidePins = function () {
-
+        $("#dropdownMenu221").addClass("aaSystemDisable");
         $rootScope.isLoading = true;
         $('#spinner').css('visibility', 'visible');
         $scope.hideSpeechBubble();
@@ -1389,6 +1389,9 @@ function ($scope, $window, $rootScope, $compile, $http, $log, $location, $timeou
     }
 
     $scope.showAllPinsAfterHide = function (event) {
+        if ($("#dropdownMenu221").hasClass("aaSystemDisable")) {
+            $("#dropdownMenu221").removeClass("aaSystemDisable");
+        }
         $rootScope.isLoading = true;
         $('#spinner').css('visibility', 'visible');
         $scope.isHidePinBtnClicked = false;
@@ -1415,6 +1418,9 @@ function ($scope, $window, $rootScope, $compile, $http, $log, $location, $timeou
 
 
     $scope.showSelectedPins = function () {
+        if ($("#dropdownMenu221").hasClass("aaSystemDisable")) {
+            $("#dropdownMenu221").removeClass("aaSystemDisable");
+        }
         $rootScope.isLoading = true;
         $('#spinner').css('visibility', 'visible');
 
diff --git a/400-SOURCECODE/AIAHTML5.Web/themes/default/css/bootstrap/3.3.6/main.css b/400-SOURCECODE/AIAHTML5.Web/themes/default/css/bootstrap/3.3.6/main.css
index 5d2248b..a701059 100644
--- a/400-SOURCECODE/AIAHTML5.Web/themes/default/css/bootstrap/3.3.6/main.css
+++ b/400-SOURCECODE/AIAHTML5.Web/themes/default/css/bootstrap/3.3.6/main.css
@@ -1100,4 +1100,11 @@ li[disabled], a[disabled] {
 }
 a[disabled] {
     color: #aaa !important; 
-}
\ No newline at end of file
+}
+
+		
+.aaSystemDisable
+ {
+    pointer-events : none;
+    opacity : 0.5;
+}