 
             return @
 
+        destroy: =>
+            connection_status.off 'all', @render
+            datacenters.off 'all', @render
+            machines.off 'all', @render
+
     # Sidebar.ConnectivityStatus
     class @ConnectivityStatus extends Backbone.View
         className: 'connectivity-status'


        initialize: =>
            # Rerender every time some relevant info changes
            directory.on 'all', (model, collection) => @render()
            machines.on 'all', (model, collection) => @render()
            datacenters.on 'all', (model, collection) => @render()

        compute_connectivity: =>
            # data centers visible

            @.$el.html @template @compute_connectivity()
            return @

        destroy: =>
            # Rerender every time some relevant info changes
            directory.off 'all', @render
            machines.off 'all', @render
            datacenters.off 'all', @render

    # Sidebar.Issues
    class @Issues extends Backbone.View
        className: 'issues'
