Fixes for ladder refreshing.

app/views/play/ladder/ladder_tab.coffee

@@ -24,14 +24,17 @@ module.exports = class LadderView extends CocoView
     super(options)
     @teams = teamDataFromLevel @level
     @leaderboards = {}
+    @refreshLadder()
+
+  refreshLadder: ->
     for team in @teams
+      @leaderboards[team.id]?.off 'sync'
 #      teamSession = _.find @sessions.models, (session) -> session.get('team') is team.id
       teamSession = null
 #      console.log "Team session: #{JSON.stringify teamSession}"
       @leaderboards[team.id] = new LeaderboardData(@level, team.id, teamSession)
       @leaderboards[team.id].once 'sync', @onLeaderboardLoaded, @
 
-  onChallengersLoaded: -> @renderMaybe()
   onLeaderboardLoaded: -> @renderMaybe()
 
   renderMaybe: ->
@@ -48,7 +51,7 @@ module.exports = class LadderView extends CocoView
     team.leaderboard = @leaderboards[team.id] for team in @teams
     ctx.levelID = @levelID
     ctx
-    
+
 class LeaderboardData
   constructor: (@level, @team, @session) ->
     _.extend @, Backbone.Events

app/views/play/ladder_view.coffee

@@ -65,17 +65,16 @@ module.exports = class LadderView extends RootView
     @insertSubView(@ladderTab = new LadderTabView({}, @level, @sessions))
     @insertSubView(@myMatchesTab = new MyMatchesTabView({}, @level, @sessions))
     setInterval(@fetchSessionsAndRefreshViews.bind(@), 10000)
-  
+
   fetchSessionsAndRefreshViews: ->
     @sessions.fetch({"success": @refreshViews})
-    
+
   refreshViews: =>
-    @ladderTab.constructor({}, @level, @sessions)
+    @ladderTab.refreshLadder()
     @myMatchesTab.refreshMatches()
     console.log "refreshed views!"
-    
-    
-    
+
+
   # Simulations
 
   onSimulateAllButtonClick: (e) ->
@@ -116,4 +115,4 @@ module.exports = class LadderView extends RootView
     teamID = button.data('team')
     session = (s for s in @sessions.models when s.get('team') is teamID)[0]
     modal = new LadderPlayModal({}, @level, session, teamID)
-    @openModalView modal
+    @openModalView modal