diff --git a/app/assets/javascripts/app/controllers/_application_controller.js.coffee b/app/assets/javascripts/app/controllers/_application_controller.js.coffee
index ad6c3a091..fa835db0d 100644
--- a/app/assets/javascripts/app/controllers/_application_controller.js.coffee
+++ b/app/assets/javascripts/app/controllers/_application_controller.js.coffee
@@ -604,8 +604,7 @@ class App.Controller extends Spine.Controller
 
     # get data
     @tickets = {}
-    ajax = new App.Ajax
-    ajax.ajax(
+    App.Com.ajax(
       type:  'GET',
       url:   '/ticket_customer',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee
index 202bf7752..4df1ce12e 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/activity_stream.js.coffee
@@ -18,10 +18,8 @@ class App.DashboardActivityStream extends App.Controller
       @render( window.LastRefresh[ 'dashboard_activity_stream' ] )
     
     # get data
-    if @req
-      @req.abort()
-    @ajax = new App.Ajax
-    @req = @ajax.ajax(
+    App.Com.ajax(
+      id:    'dashoard_activity_stream',
       type:  'GET',
       url:   '/activity_stream',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee
index 9a4c91b14..7b64c132c 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/recent_viewed.js.coffee
@@ -11,10 +11,8 @@ class App.DashboardRecentViewed extends App.Controller
     @items = []
     
     # get data
-    if @req
-      @req.abort()
-    @ajax = new App.Ajax
-    @req = @ajax.ajax(
+    App.Com.ajax(
+      id:    'dashboard_recent_viewed',
       type:  'GET',
       url:   '/recent_viewed',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee
index f35af5d63..3b5ec613c 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/rss.js.coffee
@@ -15,10 +15,8 @@ class App.DashboardRss extends App.Controller
       @render( window.LastRefresh[ 'dashboard_rss' ] )
 
     # get data
-    if @req
-      @req.abort()
-    @ajax = new App.Ajax
-    @req = @ajax.ajax(
+    App.Com.ajax(
+      id:    'dashboard_rss',
       type:  'GET',
       url:   '/rss_fetch',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee b/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee
index 9886711ef..785a02f25 100644
--- a/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee
+++ b/app/assets/javascripts/app/controllers/_dashboard/ticket.js.coffee
@@ -26,10 +26,8 @@ class App.DashboardTicket extends App.Controller
       @render( window.LastRefresh[ @key ] )
 
     # get data
-    if @req
-      @req.abort()
-    @ajax = new App.Ajax
-    @req = @ajax.ajax(
+    App.Com.ajax(
+      id:    'dashboard_ticket_' + @key,
       type:  'GET',
       url:   '/ticket_overviews',
       data:  {
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 bb84f4029..c2cc9ca83 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
@@ -27,10 +27,8 @@ class Index extends App.Controller
 
   # get data / in case also ticket data for split
   fetch: (params) ->
-    if @req
-      @req.abort()
-    @ajax = new App.Ajax
-    @req = @ajax.ajax(
+    App.Com.ajax(
+      id:    'ticket_create',
       type:  'GET',
       url:   '/ticket_create',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee
index 865404d50..dfde180e3 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_history.js.coffee
@@ -5,8 +5,8 @@ class App.TicketHistory extends App.ControllerModal
 
   fetch: (@ticket_id) ->
     # get data
-    @ajax = new App.Ajax
-    @ajax.ajax(
+    App.Com.ajax(
+      id:    'ticket_history',
       type:  'GET',
       url:   '/ticket_history/' + ticket_id,
       success: (data, status, xhr) =>
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
index 37d104179..6776b1616 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_merge.js.coffee
@@ -16,8 +16,8 @@ class App.TicketMerge extends App.ControllerModal
     params = @formParam(e.target)
     
     # merge tickets
-    @ajax = new App.Ajax
-    @ajax.ajax(
+    App.Com.ajax(
+      id:    'ticket_merge',
       type:  'GET',
       url:   '/ticket_merge/' + @ticket_id + '/' + params['master_ticket_number'],
       data:  {
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_view.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_view.js.coffee
index a09e61a72..a31a23bc5 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_view.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_view.js.coffee
@@ -45,10 +45,8 @@ class Index extends App.Controller
       @render()
 
     # get data
-    if @req
-      @req.abort()
-    @ajax = new App.Ajax
-    @req = @ajax.ajax(
+    App.Com.ajax(
+      id:    'ticket_overview',
       type:  'GET',
       url:   '/ticket_overviews',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee b/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
index 9c2eafd66..68b833a17 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
@@ -30,8 +30,8 @@ class Index extends App.Controller
   fetch: (ticket_id) ->
 
     # get data
-    @ajax = new App.Ajax
-    @ajax.ajax(
+    App.Com.ajax(
+      id:    'ticket_zoom',
       type:  'GET',
       url:   '/ticket_full/' + ticket_id,
       data:  {
diff --git a/app/assets/javascripts/app/controllers/getting_started.js.coffee b/app/assets/javascripts/app/controllers/getting_started.js.coffee
index 484d6a495..1bab213d7 100644
--- a/app/assets/javascripts/app/controllers/getting_started.js.coffee
+++ b/app/assets/javascripts/app/controllers/getting_started.js.coffee
@@ -22,8 +22,8 @@ class Index extends App.Controller
   fetch: ->
 
     # get data
-    @ajax = new App.Ajax
-    @ajax.ajax(
+    App.Com.ajax(
+      id:    'getting_started',
       type:  'GET',
       url:   '/getting_started',
       data:  {
diff --git a/app/assets/javascripts/app/controllers/navigation.js.coffee b/app/assets/javascripts/app/controllers/navigation.js.coffee
index 3d1739412..f71c179f2 100644
--- a/app/assets/javascripts/app/controllers/navigation.js.coffee
+++ b/app/assets/javascripts/app/controllers/navigation.js.coffee
@@ -138,9 +138,8 @@ class App.Navigation extends App.Controller
     # only of lod request is already done
 
     if !@req_overview
-      @ajax = new App.Ajax
-#      @req_overview.abort()
-      @req_overview = @ajax.ajax(
+      @req_overview = App.Com.ajax(
+        id:    'navbar_ticket_overviews',
         type:  'GET',
         url:   '/ticket_overviews',
         data:  {},
@@ -184,8 +183,8 @@ class App.Navigation extends App.Controller
 
     # only of lod request is already done
     if !@req_recent_viewed
-      @ajax = new App.Ajax
-      @req_recent_viewed = @ajax.ajax(
+      @req_recent_viewed = App.Com.ajax(
+        id:    'navbar_recent_viewed',
         type:  'GET',
         url:   '/recent_viewed',
         data:  {
diff --git a/app/assets/javascripts/app/controllers/reset_password.js.coffee b/app/assets/javascripts/app/controllers/reset_password.js.coffee
index aec66bdf8..6d2d4b5a9 100644
--- a/app/assets/javascripts/app/controllers/reset_password.js.coffee
+++ b/app/assets/javascripts/app/controllers/reset_password.js.coffee
@@ -30,8 +30,8 @@ class Index extends App.Controller
     params = @formParam(e.target)
 
     # get data
-    ajax = new App.Ajax
-    ajax.ajax(
+    App.Com.ajax(
+      id:   'password_reset',
       type: 'POST',
       url:  '/users/password_reset',
       data: JSON.stringify(params),
@@ -63,10 +63,10 @@ class Verify extends App.Controller
     @navupdate '#reset_password_verify'
 
     # get data
-    ajax = new App.Ajax
     params = {}
     params['token'] = @token
-    ajax.ajax(
+    App.Com.ajax(
+      id:   'passwort_reset_verify',
       type: 'POST',
       url:  '/users/password_reset_verify',
       data: JSON.stringify(params),
@@ -96,8 +96,8 @@ class Verify extends App.Controller
     params['token'] = @token
 
     # get data
-    ajax = new App.Ajax
-    ajax.ajax(
+    App.Com.ajax(
+      id:   'password_reset_verify',
       type: 'POST',
       url:  '/users/password_reset_verify',
       data: JSON.stringify(params),