Popup dialog when changing hub:

app/assets/javascripts/darkswarm/controllers/hub_node_controller.js.coffee

@@ -11,6 +11,10 @@ Darkswarm.controller "HubNodeCtrl", ($scope, Navigation, $location, $anchorScrol
   $scope.emptiesCart = ->
     CurrentHub.id isnt undefined and !$scope.current() 
 
+  $scope.changeHub = ->
+    if confirm "Are you sure? This will change your selected Hub and remove any items in you shopping cart."
+      Navigation.go $scope.hub.path 
+
   if $scope.open()
     $anchorScroll()