diff --git a/css/src/main.css b/css/src/main.css
index c5651a0..6c394f1 100644
--- a/css/src/main.css
+++ b/css/src/main.css
@@ -544,6 +544,7 @@ button > * {
   border-radius: 5px;
   border-top: 1px solid #555;
   box-shadow: 10px 10px 10px -8px rgba(0, 0, 0, 0.3);
+  z-index: 100000;
 }
 
 .alert.error {
diff --git a/js/src/configdialogmodel.js b/js/src/configdialogmodel.js
index 3f4a456..b698880 100644
--- a/js/src/configdialogmodel.js
+++ b/js/src/configdialogmodel.js
@@ -19,11 +19,11 @@
 
 import { lang as $, config } from './initializer.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uDialog from './dialog.js';
 import uLayer from './layer.js';
 import uLayerCollection from './layercollection.js';
 import uSelect from './select.js';
-import uUtils from './utils.js';
 
 /**
  * @class ConfigDialogModel
@@ -105,7 +105,7 @@ export default class ConfigDialogModel extends ViewModel {
       this.model.layers.setPriorityLayer(this.model.layerId);
       config.save(this.model)
         .then(() => this.dialog.destroy())
-        .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
diff --git a/js/src/mapapi/api_gmaps.js b/js/src/mapapi/api_gmaps.js
index 4cd51a4..d630131 100644
--- a/js/src/mapapi/api_gmaps.js
+++ b/js/src/mapapi/api_gmaps.js
@@ -19,6 +19,7 @@
 
 import { lang as $, config } from '../initializer.js';
 import MapViewModel from '../mapviewmodel.js';
+import uAlert from '../alert.js';
 import uTrack from '../track.js';
 import uUtils from '../utils.js';
 
@@ -78,7 +79,7 @@ export default class GoogleMapsApi {
         message += '<br><br>' + $._('gmauthfailure');
         message += '<br><br>' + $._('gmapilink');
         if (GoogleMapsApi.gmInitialized) {
-          alert(message);
+          uAlert.error(message);
         }
         reject(new Error(message));
       };
@@ -178,7 +179,7 @@ export default class GoogleMapsApi {
               this.setZoom(15);
             }
           });
-        setTimeout(function () {
+        setTimeout(() => {
           google.maps.event.removeListener(zListener);
         }, 2000);
       }
diff --git a/js/src/mapviewmodel.js b/js/src/mapviewmodel.js
index fb5affb..eff39e4 100644
--- a/js/src/mapviewmodel.js
+++ b/js/src/mapviewmodel.js
@@ -22,6 +22,7 @@ import GoogleMapsApi from './mapapi/api_gmaps.js';
 import OpenLayersApi from './mapapi/api_openlayers.js';
 import PositionDialogModel from './positiondialogmodel.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uDialog from './dialog.js';
 import uObserve from './observe.js';
 import uUtils from './utils.js';
@@ -96,7 +97,7 @@ export default class MapViewModel extends ViewModel {
         if (e && e.message) {
           txt += ` (${e.message})`;
         }
-        uUtils.error(e, txt);
+        uAlert.error(txt, e);
         config.mapApi = (apiName === 'gmaps') ? 'openlayers' : 'gmaps';
       });
   }
diff --git a/js/src/positiondialogmodel.js b/js/src/positiondialogmodel.js
index 20614ac..cfb985c 100644
--- a/js/src/positiondialogmodel.js
+++ b/js/src/positiondialogmodel.js
@@ -19,6 +19,7 @@
 
 import { lang as $ } from './initializer.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uDialog from './dialog.js';
 import uObserve from './observe.js';
 import uUtils from './utils.js';
@@ -81,7 +82,7 @@ export default class PositionDialogModel extends ViewModel {
           track.recalculatePositions();
           this.state.currentTrack = track;
           this.dialog.destroy();
-        }).catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        }).catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -93,7 +94,7 @@ export default class PositionDialogModel extends ViewModel {
           uObserve.forceUpdate(this.state, 'currentTrack');
           this.dialog.destroy()
         })
-        .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
diff --git a/js/src/trackdialogmodel.js b/js/src/trackdialogmodel.js
index 73ecd71..b8e41dd 100644
--- a/js/src/trackdialogmodel.js
+++ b/js/src/trackdialogmodel.js
@@ -19,6 +19,7 @@
 
 import { lang as $ } from '../src/initializer.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uDialog from './dialog.js';
 import uUtils from './utils.js';
 
@@ -70,7 +71,7 @@ export default class TrackDialogModel extends ViewModel {
       this.track.delete().then(() => {
         this.trackVM.onTrackDeleted();
         this.dialog.destroy();
-      }).catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      }).catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -79,7 +80,7 @@ export default class TrackDialogModel extends ViewModel {
       this.track.setName(this.model.trackname);
       this.track.saveMeta()
         .then(() => this.dialog.destroy())
-        .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -96,7 +97,7 @@ export default class TrackDialogModel extends ViewModel {
       return false;
     }
     if (!this.model.trackname) {
-      alert($._('allrequired'));
+      uAlert.error($._('allrequired'));
       return false;
     }
     return true;
diff --git a/js/src/trackviewmodel.js b/js/src/trackviewmodel.js
index 8ee02a1..0f1bcc5 100644
--- a/js/src/trackviewmodel.js
+++ b/js/src/trackviewmodel.js
@@ -20,6 +20,7 @@
 import { lang as $, auth, config } from './initializer.js';
 import TrackDialogModel from './trackdialogmodel.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uObserve from './observe.js';
 import uPositionSet from './positionset.js';
 import uSelect from './select.js';
@@ -165,24 +166,24 @@ export default class TrackViewModel extends ViewModel {
     const form = this.importEl.parentElement;
     const sizeMax = form.elements['MAX_FILE_SIZE'].value;
     if (this.importEl.files && this.importEl.files.length === 1 && this.importEl.files[0].size > sizeMax) {
-      uUtils.error($._('isizefailure', sizeMax));
+      uAlert.error($._('isizefailure', sizeMax));
       return;
     }
     if (!auth.isAuthenticated) {
-      uUtils.error($._('notauthorized'));
+      uAlert.error($._('notauthorized'));
       return;
     }
     uTrack.import(form, auth.user)
       .then((trackList) => {
         if (trackList.length) {
           if (trackList.length > 1) {
-            alert($._('imultiple', trackList.length));
+            uAlert.toast($._('imultiple', trackList.length));
           }
           this.model.trackList = trackList.concat(this.model.trackList);
           this.model.currentTrackId = trackList[0].listValue;
         }
       })
-      .catch((e) => uUtils.error(e, `${$._('actionfailure')}\n${e.message}`))
+      .catch((e) => uAlert.error(`${$._('actionfailure')}\n${e.message}`, e))
       .finally(() => {
         this.model.inputFile = '';
       });
@@ -205,7 +206,7 @@ export default class TrackViewModel extends ViewModel {
           this.model.showLatest = false;
         }
       })
-        .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -218,7 +219,7 @@ export default class TrackViewModel extends ViewModel {
       this.state.currentTrack.clear();
     }
     this.state.currentTrack.fetchPositions()
-      .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
   }
 
   /**
@@ -235,7 +236,7 @@ export default class TrackViewModel extends ViewModel {
           this.model.currentTrackId = _track.listValue;
         }
       })
-      .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
   }
 
   /**
@@ -250,7 +251,7 @@ export default class TrackViewModel extends ViewModel {
           this.state.currentTrack = _track;
         }
       })
-      .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
   }
 
   loadTrackList() {
@@ -268,7 +269,7 @@ export default class TrackViewModel extends ViewModel {
           this.model.currentTrackId = '';
         }
       })
-      .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
   }
 
   showDialog() {
diff --git a/js/src/ulogger.js b/js/src/ulogger.js
index 71b0428..80139cb 100644
--- a/js/src/ulogger.js
+++ b/js/src/ulogger.js
@@ -24,6 +24,7 @@ import MainViewModel from './mainviewmodel.js';
 import MapViewModel from './mapviewmodel.js';
 import TrackViewModel from './trackviewmodel.js';
 import UserViewModel from './userviewmodel.js';
+import uAlert from './alert.js';
 import uState from './state.js';
 
 const domReady = uInitializer.waitForDom();
@@ -33,7 +34,7 @@ Promise.all([ domReady, initReady ])
   .then(() => {
     start();
   })
-  .catch((msg) => alert(`${$._('actionfailure')}\n${msg}`));
+  .catch((msg) => uAlert.error(`${$._('actionfailure')}\n${msg}`));
 
 
 function start() {
diff --git a/js/src/userdialogmodel.js b/js/src/userdialogmodel.js
index 8145afe..47e1591 100644
--- a/js/src/userdialogmodel.js
+++ b/js/src/userdialogmodel.js
@@ -19,6 +19,7 @@
 
 import { lang as $, auth, config } from './initializer.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uDialog from './dialog.js';
 import uUser from './user.js';
 import uUtils from './utils.js';
@@ -75,7 +76,7 @@ export default class UserDialogModel extends ViewModel {
       this.user.delete().then(() => {
         this.userVM.onUserDeleted();
         this.dialog.destroy();
-      }).catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      }).catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -84,7 +85,7 @@ export default class UserDialogModel extends ViewModel {
       const password = this.model.passVisibility ? this.model.password : null;
       this.user.modify(this.model.admin, password)
         .then(() => this.dialog.destroy())
-        .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -93,7 +94,7 @@ export default class UserDialogModel extends ViewModel {
     if (this.validate()) {
       auth.user.setPassword(this.model.password, this.model.oldPassword)
         .then(() => this.dialog.destroy())
-        .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+        .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -103,7 +104,7 @@ export default class UserDialogModel extends ViewModel {
       uUser.add(this.model.login, this.model.password, this.model.admin).then((user) => {
         this.userVM.onUserAdded(user);
         this.dialog.destroy();
-      }).catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      }).catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     }
   }
 
@@ -118,26 +119,26 @@ export default class UserDialogModel extends ViewModel {
   validate() {
     if (this.type === 'add') {
       if (!this.model.login) {
-        alert($._('allrequired'));
+        uAlert.error($._('allrequired'));
         return false;
       }
     } else if (this.type === 'pass') {
       if (!this.model.oldPassword) {
-        alert($._('allrequired'));
+        uAlert.error($._('allrequired'));
         return false;
       }
     }
     if (this.model.passVisibility) {
       if (!this.model.password || !this.model.password2) {
-        alert($._('allrequired'));
+        uAlert.error($._('allrequired'));
         return false;
       }
       if (this.model.password !== this.model.password2) {
-        alert($._('passnotmatch'));
+        uAlert.error($._('passnotmatch'));
         return false;
       }
       if (!config.validPassStrength(this.model.password)) {
-        alert($.getLocalePassRules());
+        uAlert.error($.getLocalePassRules());
         return false;
       }
     }
diff --git a/js/src/userviewmodel.js b/js/src/userviewmodel.js
index f4a7869..9c7e710 100644
--- a/js/src/userviewmodel.js
+++ b/js/src/userviewmodel.js
@@ -20,9 +20,9 @@
 import { lang as $, auth } from './initializer.js';
 import UserDialogModel from './userdialogmodel.js';
 import ViewModel from './viewmodel.js';
+import uAlert from './alert.js';
 import uSelect from './select.js';
 import uUser from './user.js';
-import uUtils from './utils.js';
 
 /**
  * @class UserViewModel
@@ -80,7 +80,7 @@ export default class UserViewModel extends ViewModel {
         this.model.currentUserId = userId;
       }
     })
-      .catch((e) => { uUtils.error(e, `${$._('actionfailure')}\n${e.message}`); });
+      .catch((e) => { uAlert.error(`${$._('actionfailure')}\n${e.message}`, e); });
     return this;
   }
 
diff --git a/js/test/api_gmaps.test.js b/js/test/api_gmaps.test.js
index 550854c..5e071f6 100644
--- a/js/test/api_gmaps.test.js
+++ b/js/test/api_gmaps.test.js
@@ -21,6 +21,7 @@ import * as gmStub from './helpers/googlemaps.stub.js';
 import { config, lang } from '../src/initializer.js'
 import GoogleMapsApi from '../src/mapapi/api_gmaps.js';
 import TrackFactory from './helpers/trackfactory.js';
+import uAlert from '../src/alert.js';
 import uObserve from '../src/observe.js';
 import uUtils from '../src/utils.js';
 
@@ -45,7 +46,7 @@ describe('Google Maps map API tests', () => {
     spyOn(google.maps, 'Marker').and.callThrough();
     spyOn(google.maps, 'Polyline').and.callThrough();
     spyOnProperty(GoogleMapsApi, 'loadTimeoutMs', 'get').and.returnValue(loadTimeout);
-    spyOn(window, 'alert');
+    spyOn(uAlert, 'error');
     spyOn(lang, '_').and.returnValue('{placeholder}');
     gmStub.applyPrototypes();
   });
@@ -155,8 +156,8 @@ describe('Google Maps map API tests', () => {
     window.gm_loaded();
     window.gm_authFailure();
 
-    expect(window.alert).toHaveBeenCalledTimes(1);
-    expect(window.alert.calls.mostRecent().args[0]).toContain('authfailure');
+    expect(uAlert.error).toHaveBeenCalledTimes(1);
+    expect(uAlert.error.calls.mostRecent().args[0]).toContain('authfailure');
   });
 
   it('should clean up class fields', () => {
diff --git a/js/test/mapviewmodel.test.js b/js/test/mapviewmodel.test.js
index b96ff15..601f048 100644
--- a/js/test/mapviewmodel.test.js
+++ b/js/test/mapviewmodel.test.js
@@ -22,6 +22,7 @@ import Fixture from './helpers/fixture.js';
 import MapViewModel from '../src/mapviewmodel.js';
 import TrackFactory from './helpers/trackfactory.js';
 import ViewModel from '../src/viewmodel.js';
+import uAlert from '../src/alert.js';
 import uObserve from '../src/observe.js';
 import uState from '../src/state.js';
 import uUtils from '../src/utils.js';
@@ -111,7 +112,7 @@ describe('MapViewModel tests', () => {
   it('should load gmaps api and fail with error, config map api should be set to another api', (done) => {
     // given
     spyOn(vm, 'onReady');
-    spyOn(uUtils, 'error');
+    spyOn(uAlert, 'error');
     mockApi.init.and.returnValue(Promise.reject(new Error('init failed')));
     // when
     vm.loadMapAPI('gmaps');
@@ -120,7 +121,7 @@ describe('MapViewModel tests', () => {
       expect(vm.getApi).toHaveBeenCalledWith('gmaps');
       expect(vm.onReady).not.toHaveBeenCalled();
       expect(config.mapApi).toBe('openlayers');
-      expect(uUtils.error).toHaveBeenCalledWith(jasmine.any(Error), jasmine.stringMatching('init failed'));
+      expect(uAlert.error).toHaveBeenCalledWith(jasmine.stringMatching('init failed'), jasmine.any(Error));
       done();
     }, 100);
   });
diff --git a/js/test/positiondialogmodel.test.js b/js/test/positiondialogmodel.test.js
index 9623ded..f95c61f 100644
--- a/js/test/positiondialogmodel.test.js
+++ b/js/test/positiondialogmodel.test.js
@@ -44,7 +44,6 @@ describe('PositionDialogModel tests', () => {
     spyOn(track.positions[positionIndex], 'save').and.returnValue(Promise.resolve());
     spyOn(track.positions[positionIndex], 'delete').and.returnValue(Promise.resolve());
     spyOn(uObserve, 'forceUpdate');
-    spyOn(window, 'alert');
   });
 
   afterEach(() => {
diff --git a/js/test/trackdialogmodel.test.js b/js/test/trackdialogmodel.test.js
index 51a96b8..f7deca7 100644
--- a/js/test/trackdialogmodel.test.js
+++ b/js/test/trackdialogmodel.test.js
@@ -20,6 +20,7 @@
 import { config, lang } from '../src/initializer.js';
 import TrackDialogModel from '../src/trackdialogmodel.js';
 import TrackFactory from './helpers/trackfactory.js';
+import uAlert from '../src/alert.js';
 import uDialog from '../src/dialog.js';
 import uObserve from '../src/observe.js';
 import uState from '../src/state.js';
@@ -41,7 +42,7 @@ describe('TrackDialogModel tests', () => {
     spyOn(dm.track, 'delete').and.returnValue(Promise.resolve());
     spyOn(dm.track, 'saveMeta').and.returnValue(Promise.resolve());
     spyOn(dm.track, 'setName');
-    spyOn(window, 'alert');
+    spyOn(uAlert, 'error');
   });
 
   afterEach(() => {
@@ -153,7 +154,7 @@ describe('TrackDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(false);
-    expect(window.alert).not.toHaveBeenCalled();
+    expect(uAlert.error).not.toHaveBeenCalled();
   });
 
   it('should return false and raise alert if track name is empty', () => {
@@ -164,7 +165,7 @@ describe('TrackDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(false);
-    expect(window.alert).toHaveBeenCalledTimes(1);
+    expect(uAlert.error).toHaveBeenCalledTimes(1);
   });
 
   it('should return true on valid track name', () => {
@@ -175,6 +176,6 @@ describe('TrackDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(true);
-    expect(window.alert).not.toHaveBeenCalled();
+    expect(uAlert.error).not.toHaveBeenCalled();
   });
 });
diff --git a/js/test/trackviewmodel.test.js b/js/test/trackviewmodel.test.js
index 67474b6..de4e9c3 100644
--- a/js/test/trackviewmodel.test.js
+++ b/js/test/trackviewmodel.test.js
@@ -22,12 +22,12 @@ import Fixture from './helpers/fixture.js';
 import TrackFactory from './helpers/trackfactory.js';
 import TrackViewModel from '../src/trackviewmodel.js';
 import ViewModel from '../src/viewmodel.js';
+import uAlert from '../src/alert.js';
 import uObserve from '../src/observe.js';
 import uPositionSet from '../src/positionset.js';
 import uState from '../src/state.js';
 import uTrack from '../src/track.js';
 import uUser from '../src/user.js';
-import uUtils from '../src/utils.js';
 
 describe('TrackViewModel tests', () => {
 
@@ -453,7 +453,7 @@ describe('TrackViewModel tests', () => {
       return Promise.resolve(imported);
     });
     spyOn(uPositionSet, 'fetch').and.returnValue(Promise.resolve(positions));
-    spyOn(window, 'alert');
+    spyOn(uAlert, 'toast');
     const options = '<option selected value="1">track1</option><option value="2">track2</option>';
     trackEl.insertAdjacentHTML('afterbegin', options);
     const optLength = trackEl.options.length;
@@ -478,7 +478,7 @@ describe('TrackViewModel tests', () => {
       expect(state.currentTrack).toBe(imported[0]);
       expect(vm.model.currentTrackId).toBe(imported[0].listValue);
       expect(state.currentTrack.length).toBe(positions.length);
-      expect(window.alert).toHaveBeenCalledTimes(1);
+      expect(uAlert.toast).toHaveBeenCalledTimes(1);
       expect(trackEl.options.length).toBe(optLength + imported.length);
       expect(vm.model.trackList.length).toBe(optLength + imported.length);
       expect(vm.model.inputFile).toBe('');
@@ -495,7 +495,7 @@ describe('TrackViewModel tests', () => {
     ];
     spyOn(uTrack, 'import').and.returnValue(Promise.resolve(imported));
     spyOn(uPositionSet, 'fetch').and.returnValue(Promise.resolve(positions));
-    spyOn(uUtils, 'error');
+    spyOn(uAlert, 'error');
     const options = '<option selected value="1">track1</option><option value="2">track2</option>';
     trackEl.insertAdjacentHTML('afterbegin', options);
     const optLength = trackEl.options.length;
@@ -534,7 +534,7 @@ describe('TrackViewModel tests', () => {
     const file = new File([ 'blob' ], '/path/filepath.gpx');
     spyOn(uTrack, 'import').and.returnValue(Promise.resolve(imported));
     spyOn(uPositionSet, 'fetch').and.returnValue(Promise.resolve(positions));
-    spyOn(uUtils, 'error');
+    spyOn(uAlert, 'error');
     const options = '<option selected value="1">track1</option><option value="2">track2</option>';
     trackEl.insertAdjacentHTML('afterbegin', options);
     const optLength = trackEl.options.length;
@@ -556,7 +556,7 @@ describe('TrackViewModel tests', () => {
       expect(uTrack.import).not.toHaveBeenCalled();
       expect(state.currentTrack).toBe(track1);
       expect(vm.model.currentTrackId).toBe(track1.listValue);
-      expect(uUtils.error).toHaveBeenCalledTimes(1);
+      expect(uAlert.error).toHaveBeenCalledTimes(1);
       expect(lang._).toHaveBeenCalledWith('notauthorized');
       expect(trackEl.options.length).toBe(optLength);
       expect(vm.model.trackList.length).toBe(optLength);
diff --git a/js/test/userdialogmodel.test.js b/js/test/userdialogmodel.test.js
index 54ef1a9..f47b65e 100644
--- a/js/test/userdialogmodel.test.js
+++ b/js/test/userdialogmodel.test.js
@@ -19,6 +19,7 @@
 
 import { auth, config, lang } from '../src/initializer.js';
 import UserDialogModel from '../src/userdialogmodel.js';
+import uAlert from '../src/alert.js';
 import uDialog from '../src/dialog.js';
 import uObserve from '../src/observe.js';
 import uState from '../src/state.js';
@@ -51,7 +52,7 @@ describe('UserDialogModel tests', () => {
     spyOn(auth.user, 'setPassword').and.returnValue(Promise.resolve());
     spyOn(uUser, 'add').and.returnValue(Promise.resolve(newUser));
     spyOn(config, 'validPassStrength').and.returnValue(true);
-    spyOn(window, 'alert');
+    spyOn(uAlert, 'error');
   });
 
   afterEach(() => {
@@ -277,7 +278,7 @@ describe('UserDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(true);
-    expect(window.alert).not.toHaveBeenCalled();
+    expect(uAlert.error).not.toHaveBeenCalled();
   });
 
   it('should return false on add user dialog empty login', () => {
@@ -290,7 +291,7 @@ describe('UserDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(false);
-    expect(window.alert).toHaveBeenCalledTimes(1);
+    expect(uAlert.error).toHaveBeenCalledTimes(1);
   });
 
   it('should return false on password change dialog empty old password', () => {
@@ -304,7 +305,7 @@ describe('UserDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(false);
-    expect(window.alert).toHaveBeenCalledTimes(1);
+    expect(uAlert.error).toHaveBeenCalledTimes(1);
   });
 
   it('should return false on add user dialog passwords not match', () => {
@@ -317,7 +318,7 @@ describe('UserDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(false);
-    expect(window.alert).toHaveBeenCalledTimes(1);
+    expect(uAlert.error).toHaveBeenCalledTimes(1);
   });
 
   it('should return true and ignore passwords on add user dialog passwords hidden', () => {
@@ -330,7 +331,7 @@ describe('UserDialogModel tests', () => {
     const result = dm.validate();
     // then
     expect(result).toBe(true);
-    expect(window.alert).toHaveBeenCalledTimes(0);
+    expect(uAlert.error).toHaveBeenCalledTimes(0);
   });
 
   it('should test password regex on dialog validate', () => {