add javascript translations, darken background and other confirm

app/assets/javascripts/user/quser.js.coffee

@@ -185,10 +185,10 @@ window.Quser=
     $.get('/user/table_info.json?table_id='+table.table_id, (res)->
       if res.current_table_id
         if res.other_supplier
-          #TODO cannot do something with other supplier when list is active
+          redirect_to 'user_root', {message: 'table_is_from_other_supplier'}
         else if res.current_table_id == table.table_id
           #nothing has changed, show product list
-          window.location = '/user/list_products'
+          redirect_to 'list_products'
         else if res.current_table_id != table.table_id
           if res.occupied
             redirect_to 'user_root', {message: 'table_is_occupied'}
@@ -200,11 +200,18 @@ window.Quser=
             redirect_to 'user_root', {message: 'supplier_is_closed'}
           else
             #TODO Offer to move table
-            $.post('/user/move_table', {table_id: table.table_id}, (res2)->
-              if res2.occupied
-                alert('Cannot move to occupied table')
-              else
-                window.location = '/user/list_products'
+            Qwaiter.confirm(
+              ok: ->
+                $.post('/user/move_table', {table_id: table.table_id}, (res2)->
+                  if res2.occupied
+                    alert('Cannot move to occupied table')
+                  else
+                    redirect_to 'list_products', {message: 'moved_to_another_table'}
+                )
+              cancel: ->
+                redirect_to 'list_products'
+              title: t('confirmations.move_to_another_table_title')
+              content: t('confirmations.move_to_another_table')
             )
       else
         if res.occupied