diff --git a/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
index 4f88bc5f1..b993aa514 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
@@ -576,7 +576,12 @@ class Router extends App.ControllerPermanent
       type:       params.type
       id:         params.id
 
-    App.TaskManager.add( 'TicketCreateScreen-' + params['id'], 'TicketCreate', clean_params )
+    App.TaskManager.execute(
+      key:        'TicketCreateScreen-' + params['id']
+      controller: 'TicketCreate'
+      params:     clean_params
+      show:       true
+    )
 
 # create new ticket routes/controller
 App.Config.set( 'ticket/create', Router, 'Routes' )
diff --git a/app/assets/javascripts/app/controllers/login.js.coffee b/app/assets/javascripts/app/controllers/login.js.coffee
index 39572415c..e28d766f3 100644
--- a/app/assets/javascripts/app/controllers/login.js.coffee
+++ b/app/assets/javascripts/app/controllers/login.js.coffee
@@ -90,9 +90,6 @@ class Index extends App.ControllerContent
 
   success: (data, status, xhr) =>
 
-    # rebuild navbar with ticket overview counter
-    App.WebSocket.send( event: 'navupdate_ticket_overview' )
-
     # redirect to #
     requested_url = @Config.get( 'requested_url' )
     if requested_url && requested_url isnt '#login'
diff --git a/app/assets/javascripts/app/controllers/organization_profile.js.coffee b/app/assets/javascripts/app/controllers/organization_profile.js.coffee
index f455e21ba..9e0449e6b 100644
--- a/app/assets/javascripts/app/controllers/organization_profile.js.coffee
+++ b/app/assets/javascripts/app/controllers/organization_profile.js.coffee
@@ -155,6 +155,11 @@ class Router extends App.ControllerPermanent
     clean_params =
       organization_id:  params.organization_id
 
-    App.TaskManager.add( 'Organization-' + @organization_id, 'OrganizationProfile', clean_params )
+    App.TaskManager.execute(
+      key:        'Organization-' + @organization_id
+      controller: 'OrganizationProfile'
+      params:     clean_params
+      show:       true
+    )
 
 App.Config.set( 'organization/profile/:organization_id', Router, 'Routes' )
diff --git a/app/assets/javascripts/app/controllers/taskbar_widget.js.coffee b/app/assets/javascripts/app/controllers/taskbar_widget.js.coffee
index 2cbd715e2..17f8f800e 100644
--- a/app/assets/javascripts/app/controllers/taskbar_widget.js.coffee
+++ b/app/assets/javascripts/app/controllers/taskbar_widget.js.coffee
@@ -91,8 +91,8 @@ class App.TaskbarWidget extends App.Controller
         return
 
     # check if active task is closed
-    currentTask = App.TaskManager.get( key )
-    tasks = App.TaskManager.all()
+    currentTask      = App.TaskManager.get( key )
+    tasks            = App.TaskManager.all()
     active_is_closed = false
     for task in tasks
       if currentTask.active && task.key is key
@@ -101,19 +101,16 @@ class App.TaskbarWidget extends App.Controller
     # remove task
     App.TaskManager.remove( key )
 
-    # navigate to next task if needed
-    tasks = App.TaskManager.all()
-    if active_is_closed && !_.isEmpty( tasks )
-      task_last = undefined
-      for task in tasks
-        task_last = task
-      if task_last
-        worker = App.TaskManager.worker( task_last.key )
-        if worker
-          @navigate worker.url()
-        return
-    if _.isEmpty( tasks )
-      @navigate '#'
+    # if we do not need to move to an other task
+    return if !active_is_closed
+
+    # get new task url
+    nextTaskUrl = App.TaskManager.nextTaskUrl()
+    if nextTaskUrl
+      @navigate nextTaskUrl
+      return
+
+    @navigate '#'
 
 class Remove extends App.ControllerModal
   constructor: ->
diff --git a/app/assets/javascripts/app/controllers/ticket_overview.js.coffee b/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
index 32c7a256d..659721058 100644
--- a/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_overview.js.coffee
@@ -1,140 +1,157 @@
-class Index extends App.Controller
-  constructor: ->
-    super
-    @render()
-
-  render: ->
-
-    @html App.view('agent_ticket_view')()
-
-    # redirect to first view
-    if !@view
-      cache = App.Store.get( 'navupdate_ticket_overview' )
-      if cache && !_.isEmpty( cache )
-        view = cache[0].link
-        @navigate "ticket/view/#{view}"
-        return
-
-    new Navbar(
-      el:   @el.find('.sidebar')
-      view: @view
-    )
-
-    if @view
-      new Table(
-        el:   @el.find('.main')
-        view: @view
-      )
-
-class Table extends App.ControllerContent
-  events:
-    'click [data-type=edit]':      'zoom'
-    'click [data-type=settings]':  'settings'
-    'click [data-type=viewmode]':  'viewmode'
-    'click [data-type=page]':      'page'
-
+class App.TicketOverview extends App.Controller
   constructor: ->
     super
 
     # check authentication
     return if !@authenticate()
 
-    @view_mode = localStorage.getItem( "mode:#{@view}" ) || 's'
-    @log 'notice', 'view:', @view, @view_mode
-
-    # set title
-    @title ''
-    @navupdate '#ticket/view'
-
-    @meta = {}
-    @bulk = {}
-
-    # set new key
-    @key = 'ticket_overview_' + @view
-
-    # bind to rebuild view event
-    @bind( 'ticket_overview_rebuild', @fetch )
-
-    # render
-    @fetch()
-
-  fetch: (force) =>
-
-    # use cache of first page
-    cache = App.Store.get( @key )
-    if !force && cache
-      @load(cache)
-
-    # init fetch via ajax, all other updates on time via websockets
-    else
-      @ajax(
-        id:   'ticket_overview_' + @key
-        type: 'GET'
-        url:  @apiPath + '/ticket_overviews'
-        data:
-          view:      @view
-          view_mode: @view_mode
-        processData: true
-        success: (data) =>
-          data.ajax = true
-          @load(data)
-        )
-
-  load: (data) =>
-    return if !data
-    return if !data.ticket_ids
-    return if !data.overview
-
-    @overview      = data.overview
-    @tickets_count = data.tickets_count
-    @ticket_ids    = data.ticket_ids
-
-    if data.ajax
-      data.ajax = false
-      App.Store.write( @key, data )
-
-      # load assets
-      App.Collection.loadAssets( data.assets )
-
-    # get meta data
-    @overview = data.overview
-    App.Overview.refresh( @overview, { clear: true } )
-
-    App.Overview.unbind('local:rerender')
-    App.Overview.bind 'local:rerender', (record) =>
-      @log 'notice', 'rerender...', record
-      @render()
-
-    App.Overview.unbind('local:refetch')
-    App.Overview.bind 'local:refetch', (record) =>
-      @log 'notice', 'refetch...', record
-      @fetch(true)
-
-    @ticket_list_show = []
-    for ticket_id in @ticket_ids
-      @ticket_list_show.push App.Ticket.fullLocal( ticket_id )
-
-    # remeber bulk attributes
-    @bulk = data.bulk
-
-    # set cache
-#    App.Store.write( @key, data )
-
-    # render page
     @render()
 
   render: ->
+    @html App.view('ticket_overview')()
+
+    @navBarController = new Navbar(
+      el:   @el.find('.sidebar')
+      view: @view
+    )
+
+    @contentController = new Table(
+      el:   @el.find('.main')
+      view: @view
+    )
+
+  active: (state) =>
+    @activeState = state
+
+  isActive: =>
+    @activeState
+
+  url: =>
+    '#ticket/view/' + @view
+
+  show: (params) =>
+
+    # highlight navbar
+    @navupdate '#ticket/view'
+
+    # redirect to last overview if we got called in first level
+    @view = params['view']
+    if !@view && @viewLast
+      @navigate "ticket/view/#{@viewLast}"
+      return
+
+    # build nav bar
+    if @navBarController
+      @navBarController.update(
+        view:        @view
+        activeState: true
+      )
+
+    # do not rerender overview if current overview is requested again
+    return if @viewLast is @view
+
+    # remember last view
+    @viewLast = @view
+
+    # build content
+    if @contentController
+      @contentController.update(
+        view: @view
+      )
+
+  hide: =>
+    if @navBarController
+      @navBarController.active(false)
+
+  changed: =>
+    false
+
+  release: =>
+    # no
+
+class Table extends App.Controller
+  events:
+    'click [data-type=edit]':     'zoom'
+    'click [data-type=settings]': 'settings'
+    'click [data-type=viewmode]': 'viewmode'
+    'click [data-type=page]':     'page'
+
+  constructor: ->
+    super
+
+    @cache = {}
+
+    # rebuild ticket overview data
+    @bind 'ticket_overview_rebuild', (data) =>
+      console.log('EVENT ticket_overview_rebuild', @view, data.view)
+
+      # remeber bulk attributes
+      @bulk = data.bulk
+
+      @cache[data.view] = data
+
+      # check if current view is updated
+      if @view is data.view
+        @render()
+
+
+  update: (params) =>
+    for key, value of params
+      @[key] = value
+
+    @view_mode = localStorage.getItem( "mode:#{@view}" ) || 's'
+    @log 'notice', 'view:', @view, @view_mode
+
+    @render()
+
+  fetch: (force) =>
+
+    # init fetch via ajax, all other updates on time via websockets
+    @ajax(
+      id:   'ticket_overview_' + @key
+      type: 'GET'
+      url:  @apiPath + '/ticket_overviews'
+      data:
+        view:      @view
+        view_mode: @view_mode
+      processData: true
+      success: (data) =>
+        if data.assets
+          App.Collection.loadAssets( data.assets )
+
+        # remeber bulk attributes
+        @bulk = data.bulk
+
+        @cache[data.view] = data
+        @render()
+      )
+
+  render: ->
+    return if !@cache
+    return if !@cache[@view]
+
+    overview      = @cache[@view].overview
+    tickets_count = @cache[@view].tickets_count
+    ticket_ids    = @cache[@view].ticket_ids
+
+    # get meta data
+    overview = @cache[@view].overview
+    App.Overview.refresh( overview, { clear: true } )
+
+    # get ticket list
+    ticket_list_show = []
+    for ticket_id in ticket_ids
+      ticket_list_show.push App.Ticket.fullLocal( ticket_id )
 
     # if customer and no ticket exists, show the following message only
-    if !@ticket_list_show[0] && @isRole('Customer')
+    if !ticket_list_show[0] && @isRole('Customer')
       @html App.view('customer_not_ticket_exists')()
       return
 
     @selected = @bulkGetSelected()
 
     # set page title
-    @overview = App.Overview.find( @overview.id )
-    @title @overview.name
+    overview = App.Overview.find( overview.id )
 
     # render init page
     checkbox = true
@@ -157,7 +174,7 @@ class Table extends App.ControllerContent
     if @isRole('Customer')
       view_modes = []
     html = App.view('agent_ticket_view/content')(
-      overview:   @overview
+      overview:   overview
       view_modes: view_modes
       checkbox:   checkbox
       edit:       edit
@@ -172,16 +189,17 @@ class Table extends App.ControllerContent
     table = ''
     if @view_mode is 'm'
       table = App.view('agent_ticket_view/detail')(
-        overview: @overview
-        objects:  @ticket_list_show
+        overview: overview
+        objects:  ticket_list_show
         checkbox: checkbox
       )
       table = $(table)
       table.delegate('[name="bulk_all"]', 'click', (e) ->
+        console.log('OOOO',  $(e.target).attr('checked') )
         if $(e.target).attr('checked')
-          $(e.target).parents().find('[name="bulk"]').attr('checked', true)
+          $(e.target).closest('table').find('[name="bulk"]').attr('checked', true)
         else
-          $(e.target).parents().find('[name="bulk"]').attr('checked', false)
+          $(e.target).closest('table').find('[name="bulk"]').attr('checked', false)
       )
       @el.find('.table-overview').append(table)
     else
@@ -226,12 +244,12 @@ class Table extends App.ControllerContent
         value
 
       new App.ControllerTable(
-        overview:     @overview.view.s
-        el:           @el.find('.table-overview')
+        overview:     overview.view.s
+        el:           @$('.table-overview')
         model:        App.Ticket
-        objects:      @ticket_list_show
+        objects:      ticket_list_show
         checkbox:     checkbox
-        groupBy:      @overview.group_by
+        groupBy:      overview.group_by
         bindRow:
           events:
             'click':  openTicket
@@ -452,9 +470,6 @@ class Table extends App.ControllerContent
           # refresh view after all tickets are proceeded
           if @bulk_count_index == @bulk_count
 
-            # rebuild navbar with updated ticket count of overviews
-            App.WebSocket.send( event: 'navupdate_ticket_overview' )
-
             # fetch overview data again
             @fetch()
       )
@@ -687,17 +702,17 @@ class Navbar extends App.Controller
     super
 
     # rebuild ticket overview data
-    @bind 'navupdate_ticket_overview', (data) =>
-      if !_.isEmpty(data)
-        App.Store.write( 'navupdate_ticket_overview', data )
-        @render(data)
+    @bind 'ticket_overview_index', (data) =>
+      #console.log('EVENT ticket_overview_index')
+      @cache = data
+      @update()
 
-    cache = App.Store.get( 'navupdate_ticket_overview' )
-    if cache
-      @render( cache )
-    else
-      @render( [] )
+    # init fetch via ajax
+    ajaxInit = =>
 
+      # ignore if already pushed via websockets
+      return if @cache
+      #console.log('AJAX CALLL')
       # init fetch via ajax, all other updates on time via websockets
       @ajax(
         id:    'ticket_overviews',
@@ -705,17 +720,37 @@ class Navbar extends App.Controller
         url:   @apiPath + '/ticket_overviews',
         processData: true,
         success: (data) =>
-          App.Store.write( 'navupdate_ticket_overview', data )
-          @render(data)
+          @cache = data
+          @update()
         )
+    @delay( ajaxInit, 5000 )
 
-  render: (dataOrig) ->
+  active: (state) =>
+    @activeState = state
 
-    data = _.clone(dataOrig)
+  update: (params = {}) ->
+    for key, value of params
+      @[key] = value
+    @render()
+
+    if @activeState
+      meta =
+        title: ''
+      if @cache
+        for item in @cache
+          if item.link is @view
+            meta.title = item.name
+      @title meta.title
+
+  render: =>
+    #console.log('RENDER NAV')
+    return if !@cache
+    data = _.clone(@cache)
 
     # redirect to first view
-    if !@view && !_.isEmpty(data)
+    if @activeState && !@view && !_.isEmpty(data)
       view = data[0].link
+      #console.log('REDIRECT', "ticket/view/#{view}")
       @navigate "ticket/view/#{view}"
       return
 
@@ -724,6 +759,7 @@ class Navbar extends App.Controller
       item.target = '#ticket/view/' + item.link
       if item.link is @view
         item.active = true
+        activeOverview = item
       else
         item.active = false
 
@@ -784,8 +820,26 @@ class Router extends App.Controller
       else
         @navigate 'ticket/zoom/' + @ticket_ids[ @position - 1 ] + '/nav/true'
 
-App.Config.set( 'ticket/view', Index, 'Routes' )
-App.Config.set( 'ticket/view/:view', Index, 'Routes' )
+class TicketOverviewRouter extends App.ControllerPermanent
+  constructor: (params) ->
+    super
+
+    # cleanup params
+    clean_params =
+      view: params.view
+
+    App.TaskManager.execute(
+      key:        'TicketOverview'
+      controller: 'TicketOverview'
+      params:     clean_params
+      show:       true
+      persistent: true
+    )
+
+App.Config.set( 'ticket/view', TicketOverviewRouter, 'Routes' )
+App.Config.set( 'ticket/view/:view', TicketOverviewRouter, 'Routes' )
 #App.Config.set( 'ticket/view/:view/:position/:direction', Router, 'Routes' )
 
+App.Config.set( 'TicketOverview', 'TicketOverview', 'permanentTask' )
+
 App.Config.set( 'TicketOverview', { prio: 1000, parent: '', name: 'Overviews', target: '#ticket/view', role: ['Agent', 'Customer'], class: 'overviews' }, 'NavBar' )
diff --git a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
index 7e65572d6..e58f439b0 100644
--- a/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/ticket_zoom.js.coffee
@@ -1730,7 +1730,12 @@ class TicketZoomRouter extends App.ControllerPermanent
       article_id: params.article_id
       nav:        params.nav
 
-    App.TaskManager.add( 'Ticket-' + @ticket_id, 'TicketZoom', clean_params )
+    App.TaskManager.execute(
+      key:        'Ticket-' + @ticket_id
+      controller: 'TicketZoom'
+      params:     clean_params
+      show:       true
+    )
 
 App.Config.set( 'ticket/zoom/:ticket_id', TicketZoomRouter, 'Routes' )
 App.Config.set( 'ticket/zoom/:ticket_id/nav/:nav', TicketZoomRouter, 'Routes' )
diff --git a/app/assets/javascripts/app/controllers/user_profile.js.coffee b/app/assets/javascripts/app/controllers/user_profile.js.coffee
index 3db91782a..d8896a41a 100644
--- a/app/assets/javascripts/app/controllers/user_profile.js.coffee
+++ b/app/assets/javascripts/app/controllers/user_profile.js.coffee
@@ -158,6 +158,12 @@ class Router extends App.ControllerPermanent
     clean_params =
       user_id:  params.user_id
 
-    App.TaskManager.add( 'User-' + @user_id, 'UserProfile', clean_params )
+    App.TaskManager.execute(
+      key:        'User-' + @user_id
+      controller: 'UserProfile'
+      params:     clean_params
+      show:       true
+    )
+
 
 App.Config.set( 'user/profile/:user_id', Router, 'Routes' )
diff --git a/app/assets/javascripts/app/lib/app_post/task_manager.js.coffee b/app/assets/javascripts/app/lib/app_post/task_manager.js.coffee
index 8e0238b71..710e69ffa 100644
--- a/app/assets/javascripts/app/lib/app_post/task_manager.js.coffee
+++ b/app/assets/javascripts/app/lib/app_post/task_manager.js.coffee
@@ -1,18 +1,18 @@
 class App.TaskManager
   _instance = undefined
 
-  @init: ->
-    _instance ?= new _taskManagerSingleton
+  @init: ( params ) ->
+    _instance ?= new _taskManagerSingleton( params )
 
   @all: ->
     if _instance == undefined
       _instance ?= new _taskManagerSingleton
     _instance.all()
 
-  @add: ( key, callback, params, to_not_show ) ->
+  @execute: ( params ) ->
     if _instance == undefined
       _instance ?= new _taskManagerSingleton
-    _instance.add( key, callback, params, to_not_show )
+    _instance.execute( params )
 
   @get: ( key ) ->
     if _instance == undefined
@@ -49,26 +49,31 @@ class App.TaskManager
       _instance ?= new _taskManagerSingleton
     _instance.worker( key )
 
-  @workerAll: ->
+  @nextTaskUrl: ->
     if _instance == undefined
       _instance ?= new _taskManagerSingleton
-    _instance.workerAll()
+    _instance.nextTaskUrl()
 
   @TaskbarId: ->
     if _instance == undefined
       _instance ?= new _taskManagerSingleton
     _instance.TaskbarId()
 
-class _taskManagerSingleton extends App.Controller
+class _taskManagerSingleton extends Spine.Module
   @include App.LogInclude
 
-  constructor: ->
+  constructor: (params = {}) ->
     super
+    if params.el
+      @el = params.el
+    else
+      @el = $('#app')
+    @offlineModus      = params.offlineModus
     @workers           = {}
     @workersStarted    = {}
     @allTasks          = []
     @tasksToUpdate     = {}
-    @activeTask        = undefined
+    @activeTaskHistory = []
     @tasksInitial()
 
     # render on login
@@ -106,36 +111,44 @@ class _taskManagerSingleton extends App.Controller
     prio++
     prio
 
+  # generate dom id for task
+  domID: (key) ->
+    "content_permanent_#{key}"
+
   worker: ( key ) ->
     return @workers[ key ] if @workers[ key ]
     return
 
-  workerAll: ->
-    @workers
-
-  add: ( key, callback, params, to_not_show = false ) ->
+  execute: ( params ) ->
 
     # input validation
-    key = App.Utils.htmlAttributeCleanup(key)
+    params.key = App.Utils.htmlAttributeCleanup(params.key)
 
-    active = true
-    if to_not_show
-      active = false
+    # in case later araives an init execute, ignore it
+    if params.init && @workers[ params.key ]
+      console.log('IGNORE LATER INIT', params)
+      return
+
+    # remember latest active controller
+    if params.show
+      @activeTaskHistory.push _.clone(params)
 
     # create new task if not exists
-    task = @get( key )
-    @log 'debug', 'add', key, callback, params, to_not_show, task, active
-    if !task
+    task = @get( params.key )
+    #console.log 'debug', 'execute', params, 'task', task
+
+    # create new online task if not exists and if not persistent
+    if !task && !params.persistent
       @log 'debug', 'add, create new taskbar in backend'
       task = new App.Taskbar
       task.load(
-        key:      key
-        params:   params
-        callback: callback
+        key:      params.key
+        params:   params.params
+        callback: params.controller
         client_id: 123
         prio:     @newPrio()
         notify:   false
-        active:   active
+        active:   params.show
       )
       @allTasks.push task.attributes()
 
@@ -150,27 +163,20 @@ class _taskManagerSingleton extends App.Controller
       )
 
     # empty static content if task is shown
-    if active
-      @activeTask = key
-      $('#content').empty()
+    if params.show
+      @el.find('#content').empty()
 
       # hide all tasks
-      $('.content').addClass('hide').removeClass('active')
+      @el.find('.content').addClass('hide').removeClass('active')
 
     # create div for task if not exists
-    if !$("#content_permanent_#{key}")[0]
-      $('#app').append('<div id="content_permanent_' + key + '" class="content horizontal flex"></div>')
-
-    # set task to shown and active
-    if @activeTask is key
-      $('#content_permanent_' + key).removeClass('hide').addClass('active')
-    else
-      $('#content_permanent_' + key).addClass('hide').removeClass('active')
+    if !@el.find("##{@domID(params.key)}")[0]
+      @el.append("<div id=\"#{@domID(params.key)}\" class=\"content horizontal flex\"></div>")
 
     # set all tasks to active false, only new/selected one to active
-    if active
+    if params.show
       for task in @allTasks
-        if task.key isnt key
+        if task.key isnt params.key
           if task.active
             task.active = false
             @taskUpdate( task )
@@ -184,72 +190,87 @@ class _taskManagerSingleton extends App.Controller
             task.notify = false
           if changed
             @taskUpdate( task )
-    else
-      for task in @allTasks
-        if @activeTask isnt task.key
-          if task.active
-            task.active = false
-            @taskUpdate( task )
 
     # start worker for task if not exists
-    @startController(key, callback, params, to_not_show)
+    @startController(params)
 
     App.Event.trigger 'task:render'
-    return key
 
-  startController: (key, callback, params, to_not_show) =>
+  startController: (params) =>
 
-    @log 'debug', 'controller start try...', callback, key
+    @log 'debug', 'controller start try...', params
 
-    # create params
-    params_app = _.clone(params)
-    params_app['el']       = $('#content_permanent_' + key )
-    params_app['task_key'] = key
-    if to_not_show
+    # create clean params
+    params_app             = _.clone(params.params)
+    params_app['el']       = $("##{@domID(params.key)}")
+    params_app['task_key'] = params.key
+    if !params.show
       params_app['doNotLog'] = 1
 
-    # return if controller is already started
-    if @workersStarted[key]
-      if !to_not_show
-        @showController( key, params_app )
-      return
+    # start controller if not already started
+    if !@workersStarted[params.key]
+      @workersStarted[params.key] = true
 
-    @workersStarted[key] = true
+      # create new controller instanz
+      @workers[params.key] = new App[params.controller]( params_app )
 
-    # create new controller instanz
-    a = new App[callback]( params_app )
-    @workers[ key ] = a
+    # if controller is started hidden, call hide of controller
+    if !params.show
+      @hide(params.key)
 
-    # activate controller
-    if !to_not_show
-      @showController( key, params_app )
+    # hide all other controller / show current controller
+    else
+      @showControllerHideOthers( params.key, params_app )
 
-    return a
-
-  showController: ( thisKey, params_app ) =>
+  showControllerHideOthers: ( thisKey, params_app ) =>
     for key of @workersStarted
-      controller = @workers[ key ]
-      if controller
-        if key is thisKey
+      if key is thisKey
+        @show(key, params_app)
+      else
+        @hide(key)
 
-          # execute controllers show
-          if controller.show
-            controller.show(params_app)
-            App.Event.trigger('ui:rerender:task')
-        else
+  # show task content
+  show: (key, params_app) ->
+    @el.find("##{@domID(key)}").removeClass('hide').addClass('active')
 
-          # execute controllers hide
-          if controller.hide
-            controller.hide()
+    controller = @workers[ key ]
+    return false if !controller
 
+    # set controller state to active
+    if controller.active
+      controller.active(true)
+
+    # execute controllers show
+    if controller.show
+      controller.show(params_app)
+      App.Event.trigger('ui:rerender:task')
+
+    true
+
+  # hide task content
+  hide: (key) ->
+    @el.find("##{@domID(key)}").addClass('hide').removeClass('active')
+
+    controller = @workers[ key ]
+    return false if !controller
+
+    # set controller state to active
+    if controller.active
+      controller.active(false)
+
+    # execute controllers hide
+    if controller.hide
+      controller.hide()
+
+    true
+
+  # get task
   get: ( key ) =>
     for task in @allTasks
       if task.key is key
         return task
-#      return task if task.key is key
-    return
-#    throw "No such task with '#{key}'"
 
+  # update task
   update: ( key, params ) =>
     task = @get( key )
     if !task
@@ -258,11 +279,12 @@ class _taskManagerSingleton extends App.Controller
       task[item] = value
     @taskUpdate( task )
 
-  remove: ( key, to_not_show = false ) =>
+  # remove task certain task from tasks
+  remove: ( key ) =>
     task = @get( key )
-    if !task
-      throw "No such task with '#{key}' to remove"
+    return if !task
 
+    # update @allTasks
     allTasks = _.filter(
       @allTasks
       (taskLocal) ->
@@ -271,21 +293,16 @@ class _taskManagerSingleton extends App.Controller
     )
     @allTasks = allTasks || []
 
-    try
-      $('#content_permanent_' + key ).html('')
-      $('#content_permanent_' + key ).remove()
-    catch
-      @log 'notice', "invalid key '#{key}'"
-
-
-    delete @workersStarted[ key ]
-    delete @workers[ key ]
+    # release task from dom and destroy controller
+    @release(key)
 
+    # rerender taskbar
     App.Event.trigger 'task:render'
 
-    # destroy in backend
+    # destroy in backend storage
     @taskDestroy(task)
 
+  # set notify of task
   notify: ( key ) =>
     task = @get( key )
     if !task
@@ -293,6 +310,7 @@ class _taskManagerSingleton extends App.Controller
     task.notify = true
     @taskUpdate( task )
 
+  # set new order of tasks (needed for dnd)
   reorder: ( order ) =>
     prio = 0
     for key in order
@@ -304,23 +322,32 @@ class _taskManagerSingleton extends App.Controller
         task.prio = prio
         @taskUpdate( task )
 
+  # release one task
+  release: (key) =>
+    try
+      @el.find( "##{@domID(key)}" ).html('')
+      @el.find( "##{@domID(key)}" ).remove()
+    catch
+      @log 'notice', "invalid key '#{key}'"
+
+    delete @workersStarted[ key ]
+    delete @workers[ key ]
+
+  # reset while tasks
   reset: =>
 
-    # release tasks
+    # release touch tasks
     for task in @allTasks
-      try
-        $('#content_permanent_' + task.key ).html('')
-        $('#content_permanent_' + task.key ).remove()
-      catch
-        @log 'notice', "invalid key '#{key}'"
+      @release(key)
 
-      delete @workersStarted[ task.key ]
-      delete @workers[ task.key ]
+    # release persistent tasks
+    for key, controller of @workers
+      @release(key)
 
     # clear instance vars
-    @tasksToUpdate = {}
-    @allTasks      = []
-    @activeTask    = undefined
+    @tasksToUpdate     = {}
+    @allTasks          = []
+    @activeTaskHistory = []
 
     # clear in mem tasks
     App.Taskbar.deleteAll()
@@ -328,6 +355,27 @@ class _taskManagerSingleton extends App.Controller
     # rerender task bar
     App.Event.trigger 'task:render'
 
+  nextTaskUrl: =>
+
+    # activate latest controller based on history
+    loop
+      controllerParams = @activeTaskHistory.pop()
+      break if !controllerParams
+      break if !controllerParams.key
+      controller = @workers[ controllerParams.key ]
+      if controller && controller.url
+        return controller.url()
+
+    # activate latest controller with highest prio
+    tasks = @all()
+    taskNext = tasks[tasks.length-1]
+    if taskNext
+      controller = @workers[ taskNext.key ]
+      if controller && controller.url
+        return controller.url()
+
+    false
+
   TaskbarId: =>
     if !@TaskbarIdInt
       @TaskbarIdInt = Math.floor( Math.random() * 99999999 )
@@ -339,6 +387,7 @@ class _taskManagerSingleton extends App.Controller
     App.Event.trigger 'task:render'
 
   taskUpdateLoop: =>
+    return if @offlineModus
     for key of @tasksToUpdate
       continue if !key
       task = @get( key )
@@ -381,26 +430,52 @@ class _taskManagerSingleton extends App.Controller
 
   tasksInitial: =>
 
+    # reopen tasks
+    App.Event.trigger 'taskbar:init'
+
+    # initial load of permanent tasks
+    task_count = 0
+    permanentTask = App.Config.get( 'permanentTask' )
+    if permanentTask
+      for key, callback of permanentTask
+        task_count += 1
+        do (task) =>
+          App.Delay.set(
+            =>
+              @execute(
+                key:        key
+                controller: callback
+                params:     {}
+                show:       false
+                persistent: true
+                init:       true
+              )
+            task_count * 50
+            undefined
+            'task'
+          )
+
     # initial load of taskbar collection
     tasks     = App.Taskbar.all()
     @allTasks = []
     for task in tasks
       @allTasks.push task.attributes()
-
-    # reopen tasks
-    App.Event.trigger 'taskbar:init'
-
-    task_count = 0
     for task in @allTasks
       task_count += 1
       do (task) =>
         App.Delay.set(
           =>
-            @add(task.key, task.callback, task.params, true)
+            @execute(
+              key:        task.key
+              controller: task.callback
+              params:     task.params
+              show:       false
+              persistent: false
+              init:       true
+            )
           task_count * 600
           undefined
           'task'
         )
 
     App.Event.trigger 'taskbar:ready'
-
diff --git a/app/views/tests/taskbar.html.erb b/app/views/tests/taskbar.html.erb
new file mode 100644
index 000000000..3005fce88
--- /dev/null
+++ b/app/views/tests/taskbar.html.erb
@@ -0,0 +1,16 @@
+<link rel="stylesheet" href="/assets/tests/qunit-1.10.0.css">
+<script src="/assets/tests/qunit-1.10.0.js"></script>
+<script src="/assets/tests/taskbar.js"></script>
+
+<style type="text/css">
+body {
+  padding-top: 0px;
+}
+</style>
+
+<script type="text/javascript">
+</script>
+
+<div id="qunit"></div>
+
+<div id="taskbars"></div>
diff --git a/config/routes/test.rb b/config/routes/test.rb
index 60f9051ed..541bb2e65 100644
--- a/config/routes/test.rb
+++ b/config/routes/test.rb
@@ -9,6 +9,7 @@ Zammad::Application.routes.draw do
   match '/tests-form-validation', :to => 'tests#form_validation', :via => :get
   match '/tests-table',           :to => 'tests#table',           :via => :get
   match '/tests-html-utils',      :to => 'tests#html_utils',      :via => :get
+  match '/tests-taskbar',         :to => 'tests#taskbar',         :via => :get
   match '/tests/wait/:sec',       :to => 'tests#wait',            :via => :get
 
 end
\ No newline at end of file
diff --git a/lib/sessions/backend/ticket_overview_index.rb b/lib/sessions/backend/ticket_overview_index.rb
index 67e89c8ad..5f7b0eb01 100644
--- a/lib/sessions/backend/ticket_overview_index.rb
+++ b/lib/sessions/backend/ticket_overview_index.rb
@@ -44,14 +44,14 @@ class Sessions::Backend::TicketOverviewIndex
 
     if !@client
       return {
-        :event  => 'navupdate_ticket_overview',
+        :event  => 'ticket_overview_index',
         :data   => data,
       }
     end
 
     @client.log 'notify', "push overview_index for user #{ @user.id }"
     @client.send({
-      :event  => 'navupdate_ticket_overview',
+      :event  => ['ticket_overview_index'],
       :data   => data,
     })
   end
diff --git a/lib/sessions/backend/ticket_overview_list.rb b/lib/sessions/backend/ticket_overview_list.rb
index 2119b428a..b2671c11a 100644
--- a/lib/sessions/backend/ticket_overview_list.rb
+++ b/lib/sessions/backend/ticket_overview_list.rb
@@ -105,16 +105,16 @@ class Sessions::Backend::TicketOverviewList
         })
         @client.send({
           :data   => {
+            :view          => item[:index].link.to_s,
             :overview      => overview_data[:overview],
             :ticket_ids    => overview_data[:ticket_ids],
             :tickets_count => overview_data[:tickets_count],
-            :bulk => {
+            :bulk          => {
               :group_id__owner_id => groups_users,
               :owner_id           => [],
             },
           },
-          :event      => [ 'ticket_overview_rebuild' ],
-          :collection => 'ticket_overview_' + item[:index].link.to_s,
+          :event => [ 'ticket_overview_rebuild' ],
         })
       end
     }
diff --git a/public/assets/tests/taskbar.js b/public/assets/tests/taskbar.js
new file mode 100644
index 000000000..b13deabeb
--- /dev/null
+++ b/public/assets/tests/taskbar.js
@@ -0,0 +1,235 @@
+window.onload = function() {
+
+test( "taskbar basic tests", function() {
+  // create task bar div
+  $('#taskbars').append('<hr><h1>taskbar basic tests</h1><div id="taskbar1"></div>')
+  App.TaskManager.init({
+    el:           $('#taskbar1'),
+    offlineModus: true,
+  })
+
+  // add tasks
+  App.TaskManager.execute({
+    key:        'TestKey1',
+    controller: 'TestController1',
+    params:     {
+      message: '#1',
+    },
+    show:       true,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#1',show:'true',hide:'false',active:'true'", "check active content!" );
+
+  App.TaskManager.execute({
+    key:        'TestKey2',
+    controller: 'TestController1',
+    params:     {
+      message: '#2',
+    },
+    show:       true,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 2, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#2',show:'true',hide:'false',active:'true'", "check active content!" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+
+  // check task history
+  equal( App.TaskManager.nextTaskUrl(), '#/some/url/#2')
+  equal( App.TaskManager.nextTaskUrl(), '#/some/url/#1')
+
+  App.TaskManager.execute({
+    key:        'TestKey3',
+    controller: 'TestController1',
+    params:     {
+      message: '#3',
+    },
+    show:       false,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 3, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#2',show:'true',hide:'false',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey3').text(), "some test controller message:'#3',show:'false',hide:'true',active:'false'", "check active content!" );
+
+
+  App.TaskManager.execute({
+    key:        'TestKey4',
+    controller: 'TestController1',
+    params:     {
+      message: '#4',
+    },
+    show:       false,
+    persistent: true,
+  })
+  equal( $('#taskbars .content').length, 4, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#2',show:'true',hide:'false',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey3').text(), "some test controller message:'#3',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey4').text(), "some test controller message:'#4',show:'false',hide:'true',active:'false'", "check active content!" );
+
+
+  App.TaskManager.execute({
+    key:        'TestKey5',
+    controller: 'TestController1',
+    params:     {
+      message: '#5',
+    },
+    show:       true,
+    persistent: true,
+  })
+  equal( $('#taskbars .content').length, 5, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#5',show:'true',hide:'false',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey2').text(), "some test controller message:'#2',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey3').text(), "some test controller message:'#3',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey4').text(), "some test controller message:'#4',show:'false',hide:'true',active:'false'", "check active content!" );
+
+
+  App.TaskManager.execute({
+    key:        'TestKey6',
+    controller: 'TestController1',
+    params:     {
+      message: '#6',
+    },
+    show:       true,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 6, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#6',show:'true',hide:'false',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey2').text(), "some test controller message:'#2',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey3').text(), "some test controller message:'#3',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey4').text(), "some test controller message:'#4',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey5').text(), "some test controller message:'#5',show:'true',hide:'true',active:'false'", "check active content!" );
+
+
+  // remove task#2
+  App.TaskManager.remove('TestKey2')
+
+  equal( $('#taskbars .content').length, 5, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#6',show:'true',hide:'false',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey3').text(), "some test controller message:'#3',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey4').text(), "some test controller message:'#4',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey5').text(), "some test controller message:'#5',show:'true',hide:'true',active:'false'", "check active content!" );
+
+  // activate task#3
+  App.TaskManager.execute({
+    key:        'TestKey3',
+    controller: 'TestController1',
+    params:     {
+      message: '#3',
+    },
+    show:       true,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 5, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#3',show:'true',hide:'true',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey1').text(), "some test controller message:'#1',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey4').text(), "some test controller message:'#4',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey5').text(), "some test controller message:'#5',show:'true',hide:'true',active:'false'", "check active content!" );
+
+
+  // activate task#1
+  App.TaskManager.execute({
+    key:        'TestKey1',
+    controller: 'TestController1',
+    params:     {
+      message: '#1',
+    },
+    show:       true,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 5, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#1',show:'true',hide:'true',active:'true'" );
+
+  equal( $('#taskbars #content_permanent_TestKey3').text(), "some test controller message:'#3',show:'true',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey4').text(), "some test controller message:'#4',show:'false',hide:'true',active:'false'", "check active content!" );
+  equal( $('#taskbars #content_permanent_TestKey5').text(), "some test controller message:'#5',show:'true',hide:'true',active:'false'", "check active content!" );
+
+
+  // remove task#1
+  App.TaskManager.remove('TestKey1')
+
+  // verify if task#3 is active
+  equal( $('#taskbars .content').length, 4, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 0, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "" );
+
+  // remove task#3
+  App.TaskManager.remove('TestKey3')
+
+  // verify if task#5 is active
+  equal( $('#taskbars .content').length, 3, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 0, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "" );
+
+  // remove task#5 // can not get removed because of permanent task
+  App.TaskManager.remove('TestKey5')
+
+  // verify if task#5 is active
+  equal( $('#taskbars .content').length, 3, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 0, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "" );
+
+  // create task#7
+  App.TaskManager.execute({
+    key:        'TestKey7',
+    controller: 'TestController1',
+    params:     {
+      message: '#7',
+    },
+    show:       true,
+    persistent: false,
+  })
+  equal( $('#taskbars .content').length, 4, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 1, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "some test controller message:'#7',show:'true',hide:'false',active:'true'", "check active content!" );
+
+  // remove task#7
+  App.TaskManager.remove('TestKey7')
+
+  // verify if task#5 is active
+  equal( $('#taskbars .content').length, 3, "check available active contents" );
+  equal( $('#taskbars .content.active').length, 0, "check available active contents" );
+  equal( $('#taskbars .content.active').text(), "" );
+
+  // check task history
+  equal( App.TaskManager.nextTaskUrl(), '#/some/url/#6')
+  equal( App.TaskManager.nextTaskUrl(), '#/some/url/#5')
+  equal( App.TaskManager.nextTaskUrl(), '#/some/url/#6')
+  equal( App.TaskManager.nextTaskUrl(), '#/some/url/#6')
+
+  // remove task#6
+  App.TaskManager.remove('TestKey6')
+
+  // check task history
+  equal( App.TaskManager.nextTaskUrl(), false)
+  equal( App.TaskManager.nextTaskUrl(), false)
+
+  // destroy task bar
+  App.TaskManager.reset()
+
+  // check if any taskar exists
+  equal( $('#taskbars .content').length, 0, "check available active contents" );
+
+})
+
+}