diff --git a/openslides/core/static/js/core.js b/openslides/core/static/js/core.js
index 1cd4dfae4..6cda0b444 100644
--- a/openslides/core/static/js/core.js
+++ b/openslides/core/static/js/core.js
@@ -35,7 +35,7 @@ angular.module('OpenSlidesApp.core', [])
     });
 })
 
-.run(function($rootScope, Config) {
+.run(function($rootScope, Config, Projector) {
     // Puts the config object into each scope.
     // TODO: maybe rootscope.config has to set before findAll() is finished
     Config.findAll().then(function() {
@@ -49,6 +49,9 @@ angular.module('OpenSlidesApp.core', [])
             }
         }
     });
+
+    // Loads all projector data
+    Projector.findAll();
 })
 
 .factory('autoupdate', function() {
@@ -79,10 +82,38 @@ angular.module('OpenSlidesApp.core', [])
     return Autoupdate;
 })
 
-.factory('Customslide', function(DS) {
+.factory('jsDataModel', function($http, Projector) {
+    var BaseModel = function() {};
+    BaseModel.prototype.project = function() {
+        return $http.post(
+            '/rest/core/projector/1/prune_elements/',
+            [{name: this.getResourceName(), id: this.id}]
+        );
+    }
+    BaseModel.prototype.isProjected = function() {
+        // Returns true if there is a projector element with the same
+        // name and the same id.
+        var projector = Projector.get(id=1);
+        var self = this;
+        return _.findIndex(projector.elements, function(element) {
+            return element.name == self.getResourceName() &&
+                   typeof(element.context.id) !== 'undefined' &&
+                   element.context.id == self.id;
+        }) > -1;
+    }
+    return BaseModel;
+})
+
+.factory('Customslide', function(DS, jsDataModel) {
+    var name = 'core/customslide'
     return DS.defineResource({
-        name: 'core/customslide',
-        endpoint: '/rest/core/customslide/'
+        name: name,
+        endpoint: '/rest/core/customslide/',
+        methods: {
+            getResourceName: function () {
+                return name;
+            },
+        },
     });
 })
 
@@ -294,17 +325,6 @@ angular.module('OpenSlidesApp.core.site', ['OpenSlidesApp.core'])
     editableOptions.theme = 'bs3';
 })
 
-// Activate an Element from the Rest-API on the projector
-// At the moment it only activates item on projector 1
-.factory('projectorActivate', function($http) {
-    return function(model, id) {
-        return $http.post(
-            '/rest/core/projector/1/prune_elements/',
-            [{name: model.name, id: id}]
-        );
-    };
-})
-
 .controller("LanguageCtrl", function ($scope, gettextCatalog) {
     // controller to switch app language
     // TODO: detect browser language for default language
diff --git a/openslides/users/static/js/users/users.js b/openslides/users/static/js/users/users.js
index d64d347be..5093677e6 100644
--- a/openslides/users/static/js/users/users.js
+++ b/openslides/users/static/js/users/users.js
@@ -1,10 +1,15 @@
 angular.module('OpenSlidesApp.users', [])
 
-.factory('User', function(DS, Group) {
+.factory('User', function(DS, Group, jsDataModel) {
+    var name = 'users/user'
     return DS.defineResource({
-        name: 'users/user',
+        name: name,
         endpoint: '/rest/users/user/',
+        useClass: jsDataModel,
         methods: {
+            getResourceName: function () {
+                return name;
+            },
             get_short_name: function() {
                 // should be the same as in the python user model.
                 var firstName = _.trim(this.first_name),
@@ -280,7 +285,7 @@ angular.module('OpenSlidesApp.users.site', ['OpenSlidesApp.users'])
     };
 }])
 
-.controller('UserListCtrl', function($scope, User, projectorActivate) {
+.controller('UserListCtrl', function($scope, User) {
     User.bindAll({}, $scope, 'users');
 
     // setup table sorting
@@ -305,10 +310,6 @@ angular.module('OpenSlidesApp.users.site', ['OpenSlidesApp.users'])
     $scope.delete = function (user) {
         User.destroy(user.id);
     };
-
-    $scope.project = function(user) {
-        projectorActivate(User, user.id).error(function() {console.log('success')});
-    };
 })
 
 .controller('UserDetailCtrl', function($scope, User, user) {
diff --git a/openslides/users/static/templates/users/user-list.html b/openslides/users/static/templates/users/user-list.html
index 08059d803..5ccd6053f 100644
--- a/openslides/users/static/templates/users/user-list.html
+++ b/openslides/users/static/templates/users/user-list.html
@@ -105,11 +105,10 @@
       <td class="optional">{{ user.groups }}
       <td os-perms="users.can_manage" class="optional">{{ user.last_login | date:'yyyy-MM-dd HH:mm:ss'}}
       <td os-perms="users.can_manage core.can_manage_projector" class="nobr">
-        <!-- projector, TODO: add link to activate slidea-->
         <a os-perms="core.can_manage_projector" class="btn btn-default btn-sm"
-            ng-click="project(user)"
+            ng-click="user.project()"
             title="{{ 'Show' | translate }}">
-          <i class="fa fa-video-camera"></i>
+          <i class="fa fa-video-camera"><span ng-if="user.isProjected()">projected</span></i>
         </a>
         <!-- edit -->
         <a ui-sref="users.user.detail.update({id: user.id})" os-perms="users.can_manage"