diff --git a/src/assets/js/frontend_book_success.js b/src/assets/js/frontend_book_success.js
index 1024a019..6d0b0b2d 100644
--- a/src/assets/js/frontend_book_success.js
+++ b/src/assets/js/frontend_book_success.js
@@ -13,25 +13,26 @@ $(document).ready(function() {
     /**
      * Event: Add Appointment to Google Calendar "Click"
      *
-     * This event handler adds the appointment to the users Google
-     * Calendar Account. The event is going to be added to the "primary"
-     * calendar. In order to use the API the javascript client library
-     * provided by Google is necessary.
+     * This event handler adds the appointment to the users Google Calendar Account. The event is going to
+     * be added to the "primary" calendar. In order to use the API the javascript client library provided by
+     * Google is necessary.
      */
     $('#add-to-google-calendar').click(function() {
         gapi.client.setApiKey(GlobalVariables.googleApiKey);
         gapi.auth.authorize({
-            'client_id'     : GlobalVariables.googleClientId,
-            'scope'         : GlobalVariables.googleApiScope,
-            'immediate'     : false
+            client_id: GlobalVariables.googleClientId,
+            scope: GlobalVariables.googleApiScope,
+            immediate: false
         }, handleAuthResult);
     });
 
     /**
-     * This method handles the authorization result. If the user granted access
-     * to his data, then the appointment is going to be added to his calendar.
+     * Handle Authorization Result
      *
-     * @param {bool} authResult The user's auth result.
+     * This method handles the authorization result. If the user granted access to his data, then the
+     * appointment is going to be added to his calendar.
+     *
+     * @param {Boolean} authResult The user's authorization result.
      */
     function handleAuthResult(authResult) {
         try {
@@ -53,53 +54,52 @@ $(document).ready(function() {
 
             // Create a valid Google Calendar API resource for the new event.
             var resource = {
-                'summary'   : GlobalVariables.serviceData['name'],
-                'location'  : GlobalVariables.companyName,
-                'start'     : {
-                    'dateTime': appointmentData['start_datetime']
+                summary: GlobalVariables.serviceData['name'],
+                location: GlobalVariables.companyName,
+                start: {
+                    dateTime: appointmentData['start_datetime']
                 },
-                'end'       : {
-                    'dateTime': appointmentData['end_datetime']
+                end: {
+                    dateTime: appointmentData['end_datetime']
                 },
-                'attendees' : [
+                attendees: [
                     {
-                        'email'         : GlobalVariables.providerData['email'],
-                        'displayName'   : GlobalVariables.providerData['first_name'] + ' '
-                                            + GlobalVariables.providerData['last_name']
+                        email: GlobalVariables.providerData['email'],
+                        displayName: GlobalVariables.providerData['first_name'] + ' '
+                                + GlobalVariables.providerData['last_name']
                     }
                 ]
             };
 
             gapi.client.load('calendar', 'v3', function() {
                 var request = gapi.client.calendar.events.insert({
-                    'calendarId'    : 'primary',
-                    'resource'      : resource
+                    calendarId: 'primary',
+                    resource: resource
                 });
 
                 request.execute(function(response) {
-                    if (!response.error) {
-                        $('#success-frame').append(
-                            '<br><br>' +
-                            '<div class="alert alert-success col-xs-12">' +
-                                '<h4>' + EALang['success'] + '</h4>' +
-                                '<p>' +
-                                    EALang['appointment_added_to_google_calendar'] +
-                                    '<br>' +
-                                    '<a href="' + response.htmlLink + '" target="_blank">' +
-                                        EALang['view_appointment_in_google_calendar'] +
-                                    '</a>' +
-                                '</p>' +
-                            '</div>'
-                        );
-                        $('#add-to-google-calendar').hide();
-                    } else {
+                    if (response.error) {
                         throw 'Could not add the event to Google Calendar.';
                     }
+
+                    $('#success-frame').append(
+                        '<br><br>' +
+                        '<div class="alert alert-success col-xs-12">' +
+                            '<h4>' + EALang['success'] + '</h4>' +
+                            '<p>' +
+                                EALang['appointment_added_to_google_calendar'] +
+                                '<br>' +
+                                '<a href="' + response.htmlLink + '" target="_blank">' +
+                                    EALang['view_appointment_in_google_calendar'] +
+                                '</a>' +
+                            '</p>' +
+                        '</div>'
+                    );
+                    $('#add-to-google-calendar').hide();
                 });
             });
         } catch(exc) {
-            // The user denied access or something else happened, display
-            // corresponding message on the screen.
+            // The user denied access or something else happened, display corresponding message on the screen.
             $('#success-frame').append(
                 '<div class="alert alert-danger col-xs-12">' +
                     '<h4>' + EALang['oops_something_went_wrong'] + '</h4>' +