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 34132eda5..ccfe2e6ba 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_create.js.coffee
@@ -64,7 +64,10 @@ class App.TicketCreate extends App.Controller
     @title @article_attributes['title']
   
   changed: =>
-    true
+    formCurrent = @formParam( '.ticket-create' )
+    diff = difference( @formDefault, formCurrent )
+    return false  if !diff || _.isEmpty( diff )
+    return true
 
   release: =>
 #    @clearInterval( @key, 'ticket_zoom' )
@@ -193,6 +196,8 @@ class App.TicketCreate extends App.Controller
       el: @el.find('[data-id="text_module"]'),
     )
 
+    @formDefault = @formParam( '.ticket-create' )
+
   localUserInfo: (params) =>
     @userInfo( user_id: params.customer_id )
 
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 20bc766ae..61380ef3b 100644
--- a/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
+++ b/app/assets/javascripts/app/controllers/agent_ticket_zoom.js.coffee
@@ -51,7 +51,13 @@ class App.TicketZoom extends App.Controller
       @title 'Ticket Zoom ' + @ticket.number
 #    else
 #      @title 'Loading...'
-  
+
+  changed: =>
+    formCurrent = @formParam( '.ticket-update' )
+    diff = difference( @formDefault, formCurrent )
+    return false if !diff || _.isEmpty( diff )
+    return true
+
   release: =>
     @clearInterval( @key, 'ticket_zoom' )
     @el.remove()
@@ -202,6 +208,8 @@ class App.TicketZoom extends App.Controller
     # show frontend times
     @frontendTimeUpdate()
 
+    @formDefault = @formParam( '.ticket-update' )
+
     # scroll to article if given
     if @article_id && document.getElementById( 'article-' + @article_id )
       offset = document.getElementById( 'article-' + @article_id ).offsetTop
diff --git a/app/assets/javascripts/app/controllers/task_widget.js.coffee b/app/assets/javascripts/app/controllers/task_widget.js.coffee
index 83dc5d651..de52791b8 100644
--- a/app/assets/javascripts/app/controllers/task_widget.js.coffee
+++ b/app/assets/javascripts/app/controllers/task_widget.js.coffee
@@ -56,6 +56,12 @@ class App.TaskWidget extends App.Controller
     e.preventDefault()
     key = $(e.target).parent().data('id')
 
+    # check if input has changed
+    task = App.TaskManager.get( key )
+    if task.worker && task.worker.changed
+      if task.worker.changed()
+        return if !window.confirm( App.i18n.translateInline('Tab has changed, you really want to close it?') )
+
     # check if active task is closed
     task_last = undefined
     tasks_all = App.TaskManager.all()
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 f90a4cc27..c2ff041e0 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
@@ -14,6 +14,11 @@ class App.TaskManager
       _instance ?= new _Singleton
     _instance.add( type, type_id, callback, params, to_not_show )
 
+  @get: ( key ) ->
+    if _instance == undefined
+      _instance ?= new _Singleton
+    _instance.get( key )
+
   @remove: ( key ) ->
     if _instance == undefined
       _instance ?= new _Singleton
@@ -118,6 +123,9 @@ class _Singleton extends App.Controller
 
     @task_count
 
+  get: ( key ) =>
+    return @tasks[key]
+
   remove: ( key, to_not_show = false ) =>
     if @tasks[key]
       @tasks[key].worker.release()
diff --git a/app/assets/javascripts/app/views/agent_ticket_create.jst.eco b/app/assets/javascripts/app/views/agent_ticket_create.jst.eco
index 84f034e91..9a237bc61 100644
--- a/app/assets/javascripts/app/views/agent_ticket_create.jst.eco
+++ b/app/assets/javascripts/app/views/agent_ticket_create.jst.eco
@@ -5,7 +5,7 @@
     </div>
   </div>
 </div>
-<form class="form-horizontal">
+<form class="form-horizontal ticket-create">
   <input type="hidden" value="" name="article_type"/>
   <div class="row">
     <div class="span9 ticket_create"></div>
diff --git a/app/assets/javascripts/app/views/agent_ticket_zoom.jst.eco b/app/assets/javascripts/app/views/agent_ticket_zoom.jst.eco
index ced5a0d4e..b7b5db8bb 100644
--- a/app/assets/javascripts/app/views/agent_ticket_zoom.jst.eco
+++ b/app/assets/javascripts/app/views/agent_ticket_zoom.jst.eco
@@ -82,7 +82,7 @@
         <img class="thumbnail user-data" data-id="<%= @S('id') %>"" src="<%- @S('image') %>" alt="">
       </div>
       <div class="span8 well-muted article-message">
-        <form class="form-stacked pull-left">
+        <form class="form-stacked pull-left ticket-update">
           <div data-id="form-ticket-update"></div>
           <div data-id="form-article-update"></div>
           <button type="submit" class="btn btn-primary submit"><%- @T( 'Submit' ) %></button>