diff --git a/src/assets/js/backend_calendar.js b/src/assets/js/backend_calendar.js
index 90513c93..add07e8f 100644
--- a/src/assets/js/backend_calendar.js
+++ b/src/assets/js/backend_calendar.js
@@ -23,8 +23,8 @@ window.BackendCalendar = window.BackendCalendar || {};
     'use strict';
 
     // Constants
-    var FILTER_TYPE_PROVIDER =  'provider',
-        FILTER_TYPE_SERVICE = 'service';
+    var FILTER_TYPE_PROVIDER =  'provider';
+    var FILTER_TYPE_SERVICE = 'service';
 
     // Variables
     var lastFocusedEventData; // Contains event data for later use.
@@ -241,11 +241,11 @@ window.BackendCalendar = window.BackendCalendar || {};
                 $('#delete-reason').css('width', '100%');
             } else {
                 // Do not display confirmation promt.
-                var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_unavailable',
-                    postData = {
-                        csrfToken: GlobalVariables.csrfToken,
-                        unavailable_id : lastFocusedEventData.data.id
-                    };
+                var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_unavailable';
+                var postData = {
+                    csrfToken: GlobalVariables.csrfToken,
+                    unavailable_id : lastFocusedEventData.data.id
+                };
 
                 $.post(postUrl, postData, function(response) {
                     $('#message_box').dialog('close');
@@ -296,8 +296,8 @@ window.BackendCalendar = window.BackendCalendar || {};
             // an insert operation.
 
             var startDatetime = $dialog.find('#start-datetime')
-                    .datepicker('getDate').toString('yyyy-MM-dd HH:mm:ss'),
-                endDatetime = $dialog.find('#end-datetime')
+                    .datepicker('getDate').toString('yyyy-MM-dd HH:mm:ss');
+            var endDatetime = $dialog.find('#end-datetime')
                     .datepicker('getDate').toString('yyyy-MM-dd HH:mm:ss');
 
             var appointment = {
@@ -369,9 +369,9 @@ window.BackendCalendar = window.BackendCalendar || {};
          * Stores the unavailable period changes or inserts a new record.
          */
         $('#manage-unavailable #save-unavailable').click(function() {
-            var $dialog = $('#manage-unavailable'),
-                start = $dialog.find('#unavailable-start').datetimepicker('getDate'),
-                end = $dialog.find('#unavailable-end').datetimepicker('getDate');
+            var $dialog = $('#manage-unavailable');
+            var start = $dialog.find('#unavailable-start').datetimepicker('getDate');
+            var end = $dialog.find('#unavailable-end').datetimepicker('getDate');
 
             if (start > end) {
                 // Start time is after end time - display message to user.
@@ -485,11 +485,11 @@ window.BackendCalendar = window.BackendCalendar || {};
                             // Display the calendar selection dialog. First we will get a list of the available
                             // user's calendars and then we will display a selection modal so the user can select
                             // the sync calendar.
-                            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_get_google_calendars',
-                                postData = {
-                                    csrfToken: GlobalVariables.csrfToken,
-                                    provider_id: $('#select-filter-item').val()
-                                };
+                            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_get_google_calendars';
+                            var postData = {
+                                csrfToken: GlobalVariables.csrfToken,
+                                provider_id: $('#select-filter-item').val()
+                            };
 
                             $.post(postUrl, postData, function(response) {
                                 if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -565,8 +565,8 @@ window.BackendCalendar = window.BackendCalendar || {};
                 }
             });
 
-            var start = new Date(),
-                currentMin = parseInt(start.toString('mm'));
+            var start = new Date();
+            var currentMin = parseInt(start.toString('mm'));
 
             if (currentMin > 0 && currentMin < 15) {
                 start.set({ 'minute': 15 });
@@ -598,8 +598,8 @@ window.BackendCalendar = window.BackendCalendar || {};
             var $dialog = $('#manage-unavailable');
 
             // Set the default datetime values.
-            var start = new Date(),
-                currentMin = parseInt(start.toString('mm'));
+            var start = new Date();
+            var currentMin = parseInt(start.toString('mm'));
 
             if (currentMin > 0 && currentMin < 15) {
                 start.set({ 'minute': 15 });
@@ -668,13 +668,13 @@ window.BackendCalendar = window.BackendCalendar || {};
          * Event: Filter Existing Customers "Change"
          */
         $('#filter-existing-customers').keyup(function() {
-            var key = $(this).val().toLowerCase(),
-                $list = $('#existing-customers-list'),
-                postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_customers',
-                postData = {
-                    'csrfToken': GlobalVariables.csrfToken,
-                    'key': key
-                };
+            var key = $(this).val().toLowerCase();
+            var $list = $('#existing-customers-list');
+            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_customers';
+            var postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                key: key
+            };
 
             // Try to get the updated customer list.
             $.ajax({
@@ -765,12 +765,12 @@ window.BackendCalendar = window.BackendCalendar || {};
          * Event: Select Google Calendar "Click"
          */
         $('#select-calendar').click(function() {
-            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_select_google_calendar',
-                postData = {
-                    csrfToken: GlobalVariables.csrfToken,
-                    provider_id: $('#select-filter-item').val(),
-                    calendar_id: $('#google-calendar').val()
-                };
+            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_select_google_calendar';
+            var postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                provider_id: $('#select-filter-item').val(),
+                calendar_id: $('#google-calendar').val()
+            };
             $.post(postUrl, postData, function(response) {
                 if (!GeneralFunctions.handleAjaxExceptions(response)) {
                     return;
@@ -814,14 +814,14 @@ window.BackendCalendar = window.BackendCalendar || {};
      * @param {Date} endDate Visible end date of the calendar.
      */
     function _refreshCalendarAppointments($calendar, recordId, filterType, startDate, endDate) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_get_calendar_appointments',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                record_id: recordId,
-                start_date: startDate.toString('yyyy-MM-dd'),
-                end_date: endDate.toString('yyyy-MM-dd'),
-                filter_type: filterType
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_get_calendar_appointments';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            record_id: recordId,
+            start_date: startDate.toString('yyyy-MM-dd'),
+            end_date: endDate.toString('yyyy-MM-dd'),
+            filter_type: filterType
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -829,8 +829,8 @@ window.BackendCalendar = window.BackendCalendar || {};
             }
 
             // Add appointments to calendar.
-            var calendarEvents = [],
-                $calendar = $('#calendar');
+            var calendarEvents = [];
+            var $calendar = $('#calendar');
 
             $.each(response.appointments, function(index, appointment) {
                 var event = {
@@ -917,8 +917,8 @@ window.BackendCalendar = window.BackendCalendar || {};
                                 }
 
                                 // Add unavailable period after work ends.
-                                var calendarDateEnd = $calendar.fullCalendar('getView').end,
-                                    workDateEnd = Date.parseExact(
+                                var calendarDateEnd = $calendar.fullCalendar('getView').end;
+                                var workDateEnd = Date.parseExact(
                                         calendarDateStart.toString('dd/MM/yyyy') + ' '
                                         + workingPlan[selDayName].end,
                                         'dd/MM/yyyy HH:mm'); // Use calendarDateStart ***
@@ -936,7 +936,8 @@ window.BackendCalendar = window.BackendCalendar || {};
                                 }
 
                                 // Add unavailable periods for breaks.
-                                var breakStart, breakEnd;
+                                var breakStart;
+                                var breakEnd;
                                 $.each(workingPlan[selDayName].breaks, function(index, currBreak) {
                                     breakStart = Date.parseExact(calendarDateStart.toString('dd/MM/yyyy')
                                             + ' ' + currBreak.start, 'dd/MM/yyyy HH:mm');
@@ -957,8 +958,8 @@ window.BackendCalendar = window.BackendCalendar || {};
                                 break;
 
                             case 'agendaWeek':
-                                var currDateStart = GeneralFunctions.clone($calendar.fullCalendar('getView').start),
-                                    currDateEnd = GeneralFunctions.clone(currDateStart).addDays(1);
+                                var currDateStart = GeneralFunctions.clone($calendar.fullCalendar('getView').start);
+                                var currDateEnd = GeneralFunctions.clone(currDateStart).addDays(1);
 
                                 // Add custom unavailable periods (they are always displayed on the calendar, even if
                                 // the provider won't work on that day).
@@ -997,8 +998,8 @@ window.BackendCalendar = window.BackendCalendar || {};
                                         return; // Go to the next loop.
                                     }
 
-                                    var start,
-                                        end;
+                                    var start;
+                                    var end;
 
                                     // Add unavailable period before work starts.
                                     start = Date.parseExact(currDateStart.toString('dd/MM/yyyy')
@@ -1033,7 +1034,8 @@ window.BackendCalendar = window.BackendCalendar || {};
                                     }
 
                                     // Add unavailable periods during day breaks.
-                                    var breakStart, breakEnd;
+                                    var breakStart;
+                                    var breakEnd;
                                     $.each(workingDay.breaks, function(index, currBreak) {
                                         breakStart = Date.parseExact(currDateStart.toString('dd/MM/yyyy')
                                                 + ' ' + currBreak.start, 'dd/MM/yyyy HH:mm');
@@ -1074,11 +1076,11 @@ window.BackendCalendar = window.BackendCalendar || {};
      * @param {Function} errorCallback Optional, if defined, this function is going to be executed on post failure.
      */
     function _saveAppointment(appointment, customer, successCallback, errorCallback) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_appointment',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                appointment_data: JSON.stringify(appointment)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_appointment';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            appointment_data: JSON.stringify(appointment)
+        };
 
         if (customer !== undefined) {
             postData['customer_data'] = JSON.stringify(customer);
@@ -1110,11 +1112,11 @@ window.BackendCalendar = window.BackendCalendar || {};
      * @param {Function} errorCallback The ajax failure callback function.
      */
     function _saveUnavailable(unavailable, successCallback, errorCallback) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_unavailable',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                unavailable: JSON.stringify(unavailable)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_unavailable';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            unavailable: JSON.stringify(unavailable)
+        };
 
         $.ajax({
             type: 'POST',
@@ -1183,8 +1185,8 @@ window.BackendCalendar = window.BackendCalendar || {};
 
                     var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_appointment';
                     var postData = {
-                        'csrfToken': GlobalVariables.csrfToken,
-                        'appointment_data': JSON.stringify(appointment)
+                        csrfToken: GlobalVariables.csrfToken,
+                        appointment_data: JSON.stringify(appointment)
                     };
 
                     $.post(postUrl, postData, function(response) {
@@ -1238,8 +1240,8 @@ window.BackendCalendar = window.BackendCalendar || {};
 
                     var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_unavailable';
                     var postData = {
-                        'csrfToken': GlobalVariables.csrfToken,
-                        'unavailable': JSON.stringify(unavailable)
+                        csrfToken: GlobalVariables.csrfToken,
+                        unavailable: JSON.stringify(unavailable)
                     };
 
                     $.post(postUrl, postData, function(response) {
@@ -1295,9 +1297,9 @@ window.BackendCalendar = window.BackendCalendar || {};
     function _calendarEventClick(event, jsEvent, view) {
         $('.popover').remove(); // Close all open popovers.
 
-        var html,
-            displayEdit,
-            displayDelete;
+        var html;
+        var displayEdit;
+        var displayDelete;
 
         // Depending where the user clicked the event (title or empty space) we
         // need to use different selectors to reach the parent element.
@@ -1458,11 +1460,11 @@ window.BackendCalendar = window.BackendCalendar || {};
                     event.data['start_datetime'] = appointment['start_datetime'];
                     event.data['end_datetime'] = appointment['end_datetime'];
 
-                    var postUrl  = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_appointment',
-                        postData = {
-                            csrfToken: GlobalVariables.csrfToken,
-                            appointment_data: JSON.stringify(appointment)
-                        };
+                    var postUrl  = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_appointment';
+                    var postData = {
+                        csrfToken: GlobalVariables.csrfToken,
+                        appointment_data: JSON.stringify(appointment)
+                    };
 
                     $.post(postUrl, postData, function(response) {
                         $('#notification').hide('blind');
@@ -1489,7 +1491,7 @@ window.BackendCalendar = window.BackendCalendar || {};
                 start_datetime: event.start.toString('yyyy-MM-dd HH:mm:ss'),
                 end_datetime: event.end.toString('yyyy-MM-dd HH:mm:ss'),
                 id_users_provider: event.data.id_users_provider
-            }
+            };
 
             var successCallback = function(response) {
                 if (response.exceptions) {
@@ -1519,11 +1521,11 @@ window.BackendCalendar = window.BackendCalendar || {};
                     event.data['start_datetime'] = unavailable['start_datetime'];
                     event.data['end_datetime'] = unavailable['end_datetime'];
 
-                    var postUrl  = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_unavailable',
-                        postData = {
-                            csrfToken: GlobalVariables.csrfToken,
-                            unavailable: JSON.stringify(unavailable)
-                        };
+                    var postUrl  = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_unavailable';
+                    var postData = {
+                        csrfToken: GlobalVariables.csrfToken,
+                        unavailable: JSON.stringify(unavailable)
+                    };
 
                     $.post(postUrl, postData, function(response) {
                         $('#notification').hide('blind');
@@ -1586,11 +1588,11 @@ window.BackendCalendar = window.BackendCalendar || {};
     function _disableProviderSync(providerId) {
         // Make an ajax call to the server in order to disable the setting
         // from the database.
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_disable_provider_sync',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                provider_id: providerId
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_disable_provider_sync';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            provider_id: providerId
+        };
 
         $.post(postUrl, postData, function(response) {
             if (response.exceptions) {
@@ -1654,9 +1656,9 @@ window.BackendCalendar = window.BackendCalendar || {};
             }
         });
 
-        var startDatetime = new Date().addMinutes(GlobalVariables.bookAdvanceTimeout),
-            endDatetime  = new Date().addMinutes(GlobalVariables.bookAdvanceTimeout).addMinutes(serviceDuration),
-            dateFormat;
+        var startDatetime = new Date().addMinutes(GlobalVariables.bookAdvanceTimeout);
+        var endDatetime  = new Date().addMinutes(GlobalVariables.bookAdvanceTimeout).addMinutes(serviceDuration);
+        var dateFormat;
 
         switch(GlobalVariables.dateFormat) {
             case 'DMY':
@@ -1766,8 +1768,8 @@ window.BackendCalendar = window.BackendCalendar || {};
             }
 
             // Check appointment start and end time.
-            var start = $('#start-datetime').datepicker('getDate'),
-                end = $('#end-datetime').datepicker('getDate');
+            var start = $('#start-datetime').datepicker('getDate');
+            var end = $('#end-datetime').datepicker('getDate');
             if (start > end) {
                 $dialog.find('#start-datetime').parents('.form-group').addClass('has-error');
                 $dialog.find('#end-datetime').parents('.form-group').addClass('has-error');
@@ -1793,9 +1795,9 @@ window.BackendCalendar = window.BackendCalendar || {};
         $dialog.find('#unavailable-id').val('');
 
         // Set default time values
-        var start = GeneralFunctions.formatDate(new Date(), GlobalVariables.dateFormat, true),
-            end = GeneralFunctions.formatDate(new Date().addHours(1), GlobalVariables.dateFormat, true),
-            dateFormat;
+        var start = GeneralFunctions.formatDate(new Date(), GlobalVariables.dateFormat, true);
+        var end = GeneralFunctions.formatDate(new Date().addHours(1), GlobalVariables.dateFormat, true);
+        var dateFormat;
 
         switch(GlobalVariables.dateFormat) {
             case 'DMY':
@@ -1908,18 +1910,18 @@ window.BackendCalendar = window.BackendCalendar || {};
         switch(GlobalVariables.dateFormat) {
             case 'DMY':
                 columnFormat = {
-                    'month': 'ddd',
-                    'week': 'ddd dd/MM',
-                    'day': 'dddd dd/MM'
+                    month: 'ddd',
+                    week: 'ddd dd/MM',
+                    day: 'dddd dd/MM'
                 };
 
                 break;
             case 'MDY':
             case 'YMD':
                 columnFormat = {
-                    'month': 'ddd',
-                    'week': 'ddd MM/dd',
-                    'day': 'dddd MM/dd'
+                    month: 'ddd',
+                    week: 'ddd MM/dd',
+                    day: 'dddd MM/dd'
                 };
                 break;
             default:
@@ -2064,8 +2066,8 @@ window.BackendCalendar = window.BackendCalendar || {};
 
         // Display the edit dialog if an appointment hash is provided.
         if (GlobalVariables.editAppointment != null) {
-            var $dialog = $('#manage-appointment'),
-                appointment = GlobalVariables.editAppointment;
+            var $dialog = $('#manage-appointment');
+            var appointment = GlobalVariables.editAppointment;
             _resetAppointmentDialog();
 
             $dialog.find('.modal-header h3').text(EALang['edit_appointment_title']);
diff --git a/src/assets/js/backend_categories_helper.js b/src/assets/js/backend_categories_helper.js
index a05e0013..ba2530d8 100644
--- a/src/assets/js/backend_categories_helper.js
+++ b/src/assets/js/backend_categories_helper.js
@@ -161,11 +161,11 @@
      * @param {Boolean} display Optional (false), if true then the selected record will be displayed on the form.
      */
     CategoriesHelper.prototype.filter = function(key, selectId, display) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_service_categories',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                key: key
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_service_categories';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: key
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -198,11 +198,11 @@
      * @param {Object} category Contains the category data.
      */
     CategoriesHelper.prototype.save = function(category) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_service_category',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                category: JSON.stringify(category)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_service_category';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            category: JSON.stringify(category)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -223,11 +223,11 @@
      * @param Number} id Record ID to be deleted.
      */
     CategoriesHelper.prototype.delete = function(id) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_service_category',
-            postData = {
-                'csrfToken': GlobalVariables.csrfToken,
-                'category_id': id
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_service_category';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            category_id: id
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_customers_helper.js b/src/assets/js/backend_customers_helper.js
index 83f76a89..f51dd6cf 100644
--- a/src/assets/js/backend_customers_helper.js
+++ b/src/assets/js/backend_customers_helper.js
@@ -60,8 +60,8 @@
                 return; // Do nothing when user edits a customer record.
             }
 
-            var customerId = $(this).attr('data-id'),
-                customer = {};
+            var customerId = $(this).attr('data-id');
+            var customer = {};
             $.each(instance.filterResults, function(index, item) {
                 if (item.id == customerId) {
                     customer = item;
@@ -84,9 +84,9 @@
             $('#customer-appointments .selected').removeClass('selected');
             $(this).addClass('selected');
 
-            var customerId = $('#filter-customers .selected').attr('data-id'),
-                appointmentId = $(this).attr('data-id'),
-                appointment = {};
+            var customerId = $('#filter-customers .selected').attr('data-id');
+            var appointmentId = $(this).attr('data-id');
+            var appointment = {};
 
             $.each(instance.filterResults, function(index, c) {
                 if (c.id === customerId) {
@@ -144,14 +144,14 @@
          */
         $('#save-customer').click(function() {
             var customer = {
-                'first_name': $('#first-name').val(),
-                'last_name': $('#last-name').val(),
-                'email': $('#email').val(),
-                'phone_number': $('#phone-number').val(),
-                'address': $('#address').val(),
-                'city': $('#city').val(),
-                'zip_code': $('#zip-code').val(),
-                'notes': $('#notes').val()
+                first_name: $('#first-name').val(),
+                last_name: $('#last-name').val(),
+                email: $('#email').val(),
+                phone_number: $('#phone-number').val(),
+                address: $('#address').val(),
+                city: $('#city').val(),
+                zip_code: $('#zip-code').val(),
+                notes: $('#notes').val()
             };
 
             if ($('#customer-id').val() != '') {
@@ -167,8 +167,8 @@
          * Event: Delete Customer Button "Click"
          */
         $('#delete-customer').click(function() {
-            var customerId = $('#customer-id').val(),
-                messageBtns = {};
+            var customerId = $('#customer-id').val();
+            var messageBtns = {};
 
             messageBtns[EALang['delete']] = function() {
                 instance.delete(customerId);
@@ -190,11 +190,11 @@
      * @param {Object} customer Contains the customer data.
      */
     CustomersHelper.prototype.save = function(customer) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_customer',
-            postData = {
-                'csrfToken': GlobalVariables.csrfToken,
-                'customer': JSON.stringify(customer)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_customer';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            customer: JSON.stringify(customer)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -214,11 +214,11 @@
      * @param {Number} id Record id to be deleted.
      */
     CustomersHelper.prototype.delete = function(id) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_customer',
-            postData = {
-                'csrfToken': GlobalVariables.csrfToken,
-                'customer_id': id
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_customer';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            customer_id: id
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -309,9 +309,9 @@
         $('#customer-appointments').data('jsp').destroy();
         $('#customer-appointments').empty();
         $.each(customer.appointments, function(index, appointment) {
-            var start = GeneralFunctions.formatDate(Date.parse(appointment.start_datetime), GlobalVariables.dateFormat, true),
-                end = GeneralFunctions.formatDate(Date.parse(appointment.end_datetime), GlobalVariables.dateFormat, true),
-                html =
+            var start = GeneralFunctions.formatDate(Date.parse(appointment.start_datetime), GlobalVariables.dateFormat, true);
+            var end = GeneralFunctions.formatDate(Date.parse(appointment.end_datetime), GlobalVariables.dateFormat, true);
+            var html =
                     '<div class="appointment-row" data-id="' + appointment.id + '">' +
                         start + ' - ' + end + '<br>' +
                         appointment.service.name + ', ' +
@@ -335,11 +335,11 @@
     CustomersHelper.prototype.filter = function(key, selectId, display) {
         display = display || false;
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_customers',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                key: key
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_customers';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: key
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -429,8 +429,8 @@
      * @param {Object} appointment Appointment data
      */
     CustomersHelper.prototype.displayAppointment = function(appointment) {
-        var start = GeneralFunctions.formatDate(Date.parse(appointment.start_datetime), GlobalVariables.dateFormat, true),
-            end = GeneralFunctions.formatDate(Date.parse(appointment.end_datetime), GlobalVariables.dateFormat, true);
+        var start = GeneralFunctions.formatDate(Date.parse(appointment.start_datetime), GlobalVariables.dateFormat, true);
+        var end = GeneralFunctions.formatDate(Date.parse(appointment.end_datetime), GlobalVariables.dateFormat, true);
 
         var html =
                 '<div>' +
diff --git a/src/assets/js/backend_services.js b/src/assets/js/backend_services.js
index 0f47afed..39e5881b 100644
--- a/src/assets/js/backend_services.js
+++ b/src/assets/js/backend_services.js
@@ -105,11 +105,11 @@ window.BackendServices = window.BackendServices || {};
      * Use this method every time a change is made to the service categories db table.
      */
     exports.updateAvailableCategories = function() {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_service_categories',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                key: ''
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_service_categories';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: ''
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_services_helper.js b/src/assets/js/backend_services_helper.js
index 9f0f2e73..f63d4e92 100644
--- a/src/assets/js/backend_services_helper.js
+++ b/src/assets/js/backend_services_helper.js
@@ -60,8 +60,8 @@
                 return; // exit because we are on edit mode
             }
 
-            var serviceId = $(this).attr('data-id'),
-                service = {};
+            var serviceId = $(this).attr('data-id');
+            var service = {};
             $.each(instance.filterResults, function(index, item) {
                 if (item.id === serviceId) {
                     service = item;
@@ -150,8 +150,8 @@
          * Event: Delete Service Button "Click"
          */
         $('#delete-service').click(function() {
-            var serviceId = $('#service-id').val(),
-                messageBtns = {};
+            var serviceId = $('#service-id').val();
+            var messageBtns = {};
 
             messageBtns[EALang['delete']] = function() {
                 instance.delete(serviceId);
@@ -174,11 +174,11 @@
      * then the update operation is going to be executed.
      */
     ServicesHelper.prototype.save = function(service) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_service',
-            postData = {
-                'csrfToken': GlobalVariables.csrfToken,
-                'service': JSON.stringify(service)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_service';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            service: JSON.stringify(service)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -198,11 +198,11 @@
      * @param {Number} id Record ID to be deleted.
      */
     ServicesHelper.prototype.delete = function(id) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_service',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                service_id: id
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_service';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            service_id: id
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -293,11 +293,11 @@
     ServicesHelper.prototype.filter = function(key, selectId, display) {
         display = display || false;
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_services',
-            postData = {
-                'csrfToken': GlobalVariables.csrfToken,
-                'key': key
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_services';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: key
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_settings.js b/src/assets/js/backend_settings.js
index 59458170..98e6c2f7 100644
--- a/src/assets/js/backend_settings.js
+++ b/src/assets/js/backend_settings.js
@@ -194,12 +194,12 @@ window.BackendSettings = window.BackendSettings || {};
                 return;
             }
 
-            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_validate_username',
-                postData = {
-                    csrfToken: GlobalVariables.csrfToken,
-                    username: $input.val(),
-                    user_id: $input.parents().eq(2).find('#user-id').val()
-                };
+            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_validate_username';
+            var postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                username: $input.val(),
+                user_id: $input.parents().eq(2).find('#user-id').val()
+            };
 
             $.post(postUrl, postData, function(response) {
                 if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_settings_system.js b/src/assets/js/backend_settings_system.js
index 276bcbb8..f68bf00b 100644
--- a/src/assets/js/backend_settings_system.js
+++ b/src/assets/js/backend_settings_system.js
@@ -28,12 +28,12 @@
      * @param {Array} settings Contains the system settings data.
      */
     SystemSettings.prototype.save = function(settings) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_settings',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                settings: JSON.stringify(settings),
-                type: BackendSettings.SETTINGS_SYSTEM
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_settings';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            settings: JSON.stringify(settings),
+            type: BackendSettings.SETTINGS_SYSTEM
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_settings_user.js b/src/assets/js/backend_settings_user.js
index 1435e1d6..fc7278c7 100644
--- a/src/assets/js/backend_settings_user.js
+++ b/src/assets/js/backend_settings_user.js
@@ -62,12 +62,12 @@
             return; // Validation failed, do not procceed.
         }
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_settings',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                type: BackendSettings.SETTINGS_USER,
-                settings: JSON.stringify(settings)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_settings';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            type: BackendSettings.SETTINGS_USER,
+            settings: JSON.stringify(settings)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_users.js b/src/assets/js/backend_users.js
index 9c63fc2a..0b7b9f01 100644
--- a/src/assets/js/backend_users.js
+++ b/src/assets/js/backend_users.js
@@ -142,11 +142,11 @@ window.BackendUsers = window.BackendUsers || {};
                 helper = new SecretariesHelper();
 
                 // Update the list with the all the available providers.
-                var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers',
-                    postData = {
-                        csrfToken: GlobalVariables.csrfToken,
-                        key: ''
-                    };
+                var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers';
+                var postData = {
+                    csrfToken: GlobalVariables.csrfToken,
+                    key: ''
+                };
                 $.post(postUrl, postData, function(response) {
                     if (!GeneralFunctions.handleAjaxExceptions(response)) {
                         return;
@@ -200,12 +200,12 @@ window.BackendUsers = window.BackendUsers || {};
                 return;
             }
 
-            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_validate_username',
-                postData = {
-                    csrfToken: GlobalVariables.csrfToken,
-                    username: $input.val(),
-                    user_id: userId
-                };
+            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_validate_username';
+            var postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                username: $input.val(),
+                user_id: userId
+            };
 
             $.post(postUrl, postData, function(response) {
                 if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_users_admins.js b/src/assets/js/backend_users_admins.js
index 76c694c6..705e0c99 100644
--- a/src/assets/js/backend_users_admins.js
+++ b/src/assets/js/backend_users_admins.js
@@ -61,8 +61,8 @@
                 return; // exit because we are currently on edit mode
             }
 
-            var adminId = $(e.currentTarget).attr('data-id'),
-                admin = {};
+            var adminId = $(e.currentTarget).attr('data-id');
+            var admin = {};
 
             $.each(this.filterResults, function(index, item) {
                 if (item.id === adminId) {
@@ -109,8 +109,8 @@
          * Event: Delete Admin Button "Click"
          */
         $('#admins').on('click', '#delete-admin', function() {
-            var adminId = $('#admin-id').val(),
-                messageBtns = {};
+            var adminId = $('#admin-id').val();
+            var messageBtns = {};
 
             messageBtns[EALang['delete']] = function() {
                 this.delete(adminId);
@@ -184,11 +184,11 @@
      * then the update operation is going to be executed.
      */
     AdminsHelper.prototype.save = function(admin) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_admin',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                admin: JSON.stringify(admin)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_admin';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            admin: JSON.stringify(admin)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -207,11 +207,11 @@
      * @param {Number} id Record id to be deleted.
      */
     AdminsHelper.prototype.delete = function(id) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_admin',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                admin_id: id
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_admin';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            admin_id: id
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -339,11 +339,11 @@
     AdminsHelper.prototype.filter = function(key, selectId, display) {
         display = display || false;
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_admins',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                key: key
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_admins';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: key
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -378,8 +378,8 @@
      * @return {String} The html code that represents the record on the filter results list.
      */
     AdminsHelper.prototype.getFilterHtml = function(admin) {
-        var name = admin.first_name + ' ' + admin.last_name,
-            info = admin.email;
+        var name = admin.first_name + ' ' + admin.last_name;
+        var info = admin.email;
 
         info = (admin.mobile_number != '' && admin.mobile_number != null)
                 ? info + ', ' + admin.mobile_number : info;
diff --git a/src/assets/js/backend_users_providers.js b/src/assets/js/backend_users_providers.js
index dc6ddf33..2c04c662 100644
--- a/src/assets/js/backend_users_providers.js
+++ b/src/assets/js/backend_users_providers.js
@@ -63,8 +63,8 @@
                 return; // Exit because we are currently on edit mode.
             }
 
-            var providerId = $(e.currentTarget).attr('data-id'),
-                provider = {};
+            var providerId = $(e.currentTarget).attr('data-id');
+            var provider = {};
 
             $.each(this.filterResults, function(index, item) {
                 if (item.id === providerId) {
@@ -236,11 +236,11 @@
      * then the update operation is going to be executed.
      */
     ProvidersHelper.prototype.save = function(provider) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_provider',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                provider: JSON.stringify(provider)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_provider';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            provider: JSON.stringify(provider)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -259,11 +259,11 @@
      * @param {Number} id Record id to be deleted.
      */
     ProvidersHelper.prototype.delete = function(id) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_provider',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                provider_id: id
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_provider';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            provider_id: id
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -412,11 +412,11 @@
     ProvidersHelper.prototype.filter = function(key, selectId, display) {
         display = display || false;
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                key: key
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: key
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
diff --git a/src/assets/js/backend_users_secretaries.js b/src/assets/js/backend_users_secretaries.js
index 3675c69e..311a8425 100644
--- a/src/assets/js/backend_users_secretaries.js
+++ b/src/assets/js/backend_users_secretaries.js
@@ -63,8 +63,8 @@
                 return; // exit because we are currently on edit mode
             }
 
-            var secretaryId = $(e.currentTarget).attr('data-id'),
-                secretary = {};
+            var secretaryId = $(e.currentTarget).attr('data-id');
+            var secretary = {};
 
             $.each(this.filterResults, function(index, item) {
                 if (item.id === secretaryId) {
@@ -114,8 +114,8 @@
          * Event: Delete Secretary Button "Click"
          */
         $('#secretaries').on('click', '#delete-secretary', function() {
-            var secretaryId = $('#secretary-id').val(),
-                messageBtns = {};
+            var secretaryId = $('#secretary-id').val();
+            var messageBtns = {};
 
             messageBtns[EALang['delete']] = function() {
                 this.delete(secretaryId);
@@ -197,11 +197,11 @@
      * then the update operation is going to be executed.
      */
     SecretariesHelper.prototype.save = function(secretary) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_secretary',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                secretary: JSON.stringify(secretary)
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_secretary';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            secretary: JSON.stringify(secretary)
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -220,11 +220,11 @@
      * @param {Number} id Record id to be deleted.
      */
     SecretariesHelper.prototype.delete = function(id) {
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_secretary',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                secretary_id: id
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_secretary';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            secretary_id: id
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -361,11 +361,11 @@
     SecretariesHelper.prototype.filter = function(key, selectId, display) {
         display = display || false;
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_secretaries',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                key: key
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_secretaries';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            key: key
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -400,8 +400,8 @@
      * @return {String} The html code that represents the record on the filter results list.
      */
     SecretariesHelper.prototype.getFilterHtml = function(secretary) {
-        var name = secretary.first_name + ' ' + secretary.last_name,
-            info = secretary.email;
+        var name = secretary.first_name + ' ' + secretary.last_name;
+        var info = secretary.email;
 
         info = (secretary.mobile_number != '' && secretary.mobile_number != null)
                 ? info + ', ' + secretary.mobile_number : info;
diff --git a/src/assets/js/frontend_book.js b/src/assets/js/frontend_book.js
index 72c39e63..a1298e06 100644
--- a/src/assets/js/frontend_book.js
+++ b/src/assets/js/frontend_book.js
@@ -344,9 +344,9 @@ window.FrontendBook = window.FrontendBook || {};
             selectedDate = GeneralFunctions.formatDate(selectedDate, GlobalVariables.dateFormat);
         }
 
-        var selServiceId = $('#select-service').val(),
-            servicePrice,
-            serviceCurrency;
+        var selServiceId = $('#select-service').val();
+        var servicePrice;
+        var serviceCurrency;
 
         $.each(GlobalVariables.availableServices, function(index, service) {
             if (service.id == selServiceId) {
@@ -369,13 +369,13 @@ window.FrontendBook = window.FrontendBook || {};
         $('#appointment-details').html(html);
 
         // Customer Details
-        var firstname = GeneralFunctions.escapeHtml($('#first-name').val()),
-            lastname = GeneralFunctions.escapeHtml($('#last-name').val()),
-            phoneNumber = GeneralFunctions.escapeHtml($('#phone-number').val()),
-            email = GeneralFunctions.escapeHtml($('#email').val()),
-            address = GeneralFunctions.escapeHtml($('#address').val()),
-            city = GeneralFunctions.escapeHtml($('#city').val()),
-            zipCode = GeneralFunctions.escapeHtml($('#zip-code').val()),
+        var firstname = GeneralFunctions.escapeHtml($('#first-name').val());
+        var lastname = GeneralFunctions.escapeHtml($('#last-name').val());
+        var phoneNumber = GeneralFunctions.escapeHtml($('#phone-number').val());
+        var email = GeneralFunctions.escapeHtml($('#email').val());
+        var address = GeneralFunctions.escapeHtml($('#address').val());
+        var city = GeneralFunctions.escapeHtml($('#city').val());
+        var zipCode = GeneralFunctions.escapeHtml($('#zip-code').val());
 
         html =
             '<h4>' + firstname + ' ' + lastname + '</h4>' +
diff --git a/src/assets/js/frontend_book_api.js b/src/assets/js/frontend_book_api.js
index 20c038ef..2457e0c9 100644
--- a/src/assets/js/frontend_book_api.js
+++ b/src/assets/js/frontend_book_api.js
@@ -45,16 +45,16 @@ window.FrontendBookApi = window.FrontendBookApi || {};
         var appointmentId = FrontendBook.manageMode ? GlobalVariables.appointmentData['id'] : undefined;
 
         // Make ajax post request and get the available hours.
-        var postUrl = GlobalVariables.baseUrl + '/index.php/appointments/ajax_get_available_hours',
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                service_id: $('#select-service').val(),
-                provider_id: $('#select-provider').val(),
-                selected_date: selDate,
-                service_duration: selServiceDuration,
-                manage_mode: FrontendBook.manageMode,
-                appointment_id: appointmentId
-            };
+        var postUrl = GlobalVariables.baseUrl + '/index.php/appointments/ajax_get_available_hours';
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            service_id: $('#select-service').val(),
+            provider_id: $('#select-provider').val(),
+            selected_date: selDate,
+            service_duration: selServiceDuration,
+            manage_mode: FrontendBook.manageMode,
+            appointment_id: appointmentId
+        };
 
         $.post(postUrl, postData, function(response) {
             if (!GeneralFunctions.handleAjaxExceptions(response)) {
@@ -115,11 +115,11 @@ window.FrontendBookApi = window.FrontendBookApi || {};
             }
         }
 
-        var formData = jQuery.parseJSON($('input[name="post_data"]').val()),
-            postData = {
-                csrfToken: GlobalVariables.csrfToken,
-                post_data: formData
-            };
+        var formData = jQuery.parseJSON($('input[name="post_data"]').val());
+        var postData = {
+            csrfToken: GlobalVariables.csrfToken,
+            post_data: formData
+        };
 
         if ($captchaText.length > 0) {
             postData.captcha = $captchaText.val();
@@ -129,8 +129,8 @@ window.FrontendBookApi = window.FrontendBookApi || {};
             postData.exclude_appointment_id = GlobalVariables.appointmentData.id;
         }
 
-        var postUrl = GlobalVariables.baseUrl + '/index.php/appointments/ajax_register_appointment',
-            $layer = $('<div/>');
+        var postUrl = GlobalVariables.baseUrl + '/index.php/appointments/ajax_register_appointment';
+        var $layer = $('<div/>');
 
         $.ajax({
             url: postUrl,
@@ -197,13 +197,13 @@ window.FrontendBookApi = window.FrontendBookApi || {};
      * @param {String} selectedDateString Y-m-d value of the selected date.
      */
     exports.getUnavailableDates = function(providerId, serviceId, selectedDateString) {
-        var url = GlobalVariables.baseUrl + '/index.php/appointments/ajax_get_unavailable_dates',
-            data = {
-                provider_id: providerId,
-                service_id: serviceId,
-                selected_date: encodeURIComponent(selectedDateString),
-                csrfToken: GlobalVariables.csrfToken
-            };
+        var url = GlobalVariables.baseUrl + '/index.php/appointments/ajax_get_unavailable_dates';
+        var data = {
+            provider_id: providerId,
+            service_id: serviceId,
+            selected_date: encodeURIComponent(selectedDateString),
+            csrfToken: GlobalVariables.csrfToken
+        };
 
         $.ajax({
             url: url,
@@ -213,8 +213,8 @@ window.FrontendBookApi = window.FrontendBookApi || {};
         })
             .done(function(response) {
                 // Select first enabled date.
-                var selectedDate = Date.parse(selectedDateString),
-                    numberOfDays = new Date(selectedDate.getFullYear(), selectedDate.getMonth() + 1, 0).getDate();
+                var selectedDate = Date.parse(selectedDateString);
+                var numberOfDays = new Date(selectedDate.getFullYear(), selectedDate.getMonth() + 1, 0).getDate();
 
                 for (var i=1; i<=numberOfDays; i++) {
                     var currentDate = new Date(selectedDate.getFullYear(), selectedDate.getMonth(), i);
diff --git a/src/assets/js/general_functions.js b/src/assets/js/general_functions.js
index 7ae51db7..e9c217be 100644
--- a/src/assets/js/general_functions.js
+++ b/src/assets/js/general_functions.js
@@ -115,9 +115,9 @@ window.GeneralFunctions = window.GeneralFunctions || {};
      */
     exports.getUrlParameter = function(url, parameterName) {
         parameterName = parameterName.replace(/[\[]/,'\\\[').replace(/[\]]/,'\\\]');
-        var regexS = '[\\#&]' + parameterName + '=([^&#]*)',
-            regex = new RegExp(regexS),
-            results = regex.exec(url);
+        var regexS = '[\\#&]' + parameterName + '=([^&#]*)';
+        var regex = new RegExp(regexS);
+        var results = regex.exec(url);
         return (results == null) ? '' : results[1];
     };
 
@@ -340,11 +340,11 @@ window.GeneralFunctions = window.GeneralFunctions || {};
 
         $(document).on('click', 'li.language', function() {
         	// Change language with ajax call and refresh page.
-        	var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_change_language',
-                postData = {
-                    csrfToken: GlobalVariables.csrfToken,
-                    language: $(this).attr('data-language'),
-                };
+        	var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_change_language';
+            var postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                language: $(this).attr('data-language'),
+            };
         	$.post(postUrl, postData, function(response) {
         		if (!GeneralFunctions.handleAjaxExceptions(response)) {
                     return;
@@ -394,8 +394,8 @@ window.GeneralFunctions = window.GeneralFunctions || {};
      * @return {String} Returns the formatted date string.
      */
     exports.formatDate = function(date, dateFormatSetting, addHours) {
-        var format, result,
-            hours = addHours ? ' HH:mm' : '';
+        var format, result;
+        var hours = addHours ? ' HH:mm' : '';
 
         switch(dateFormatSetting) {
             case 'DMY':