diff --git a/src/assets/js/backend_users.js b/src/assets/js/backend_users.js
index 6314b875..55e7c3b7 100644
--- a/src/assets/js/backend_users.js
+++ b/src/assets/js/backend_users.js
@@ -9,28 +9,40 @@
  * @since       v1.0.0
  * ---------------------------------------------------------------------------- */
 
+window.BackendUsers = window.BackendUsers || {};
+
 /**
- * This namespace handles the js functionality of the users backend page. It uses three other
+ * Backend Users
+ *
+ * This module handles the js functionality of the users backend page. It uses three other
  * classes (defined below) in order to handle the admin, provider and secretary record types.
  *
- * @namespace BackendUsers
+ * @module BackendUsers
  */
-var BackendUsers = {
-    MIN_PASSWORD_LENGTH: 7,
+(function(exports){
+
+    'use strict';
+
+    /**
+     * Minimum Password Length
+     *
+     * @type {int}
+     */
+    exports.MIN_PASSWORD_LENGTH = 7;
 
     /**
      * Contains the current tab record methods for the page.
      *
      * @type AdminsHelper|ProvidersHelper|SecretariesHelper
      */
-    helper: {},
+    var helper = {};
 
     /**
      * Use this class instance for performing actions on the working plan.
      *
      * @type {object}
      */
-    wp: {},
+    exports.wp = {};
 
     /**
      * Initialize the backend users page.
@@ -38,8 +50,8 @@ var BackendUsers = {
      * @param {bool} defaultEventHandlers (OPTIONAL) Whether to bind the default event handlers
      * (default: true).
      */
-    initialize: function(defaultEventHandlers) {
-        if (defaultEventHandlers == undefined) defaultEventHandlers = true;
+    exports.initialize = function(defaultEventHandlers) {
+        defaultEventHandlers = defaultEventHandlers || true;
 
         // Initialize jScrollPane Scrollbars
         $('#filter-admins .results').jScrollPane();
@@ -47,12 +59,13 @@ var BackendUsers = {
         $('#filter-secretaries .results').jScrollPane();
 
         // Instanciate default helper object (admin).
-        BackendUsers.helper = new AdminsHelper();
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter('');
+        helper = new AdminsHelper();
+        helper.resetForm();
+        helper.filter('');
+        helper.bindEventHandlers();
 
-        BackendUsers.wp = new WorkingPlan();
-        BackendUsers.wp.bindEventHandlers();
+        exports.wp = new WorkingPlan();
+        exports.wp.bindEventHandlers();
 
         // Fill the services and providers list boxes.
         var html = '<div class="col-md-12">';
@@ -96,14 +109,16 @@ var BackendUsers = {
         });
 
         // Bind event handlers.
-        if (defaultEventHandlers) BackendUsers.bindEventHandlers();
-    },
+        if (defaultEventHandlers) {
+            _bindEventHandlers();
+        }
+    };
 
     /**
      * Binds the defauly backend users event handlers. Do not use this method on a different
      * page because it needs the backend users page DOM.
      */
-    bindEventHandlers: function() {
+    function _bindEventHandlers() {
         /**
          * Event: Page Tab Button "Click"
          *
@@ -113,27 +128,30 @@ var BackendUsers = {
             $(this).parent().find('.active').removeClass('active');
             $(this).addClass('active');
             $('.tab-content').hide();
+            $('#admins, #providers, #secretaries').off();
 
             if ($(this).hasClass('admins-tab')) { // display admins tab
                 $('#admins').show();
-                BackendUsers.helper = new AdminsHelper();
+                helper = new AdminsHelper();
             } else if ($(this).hasClass('providers-tab')) { // display providers tab
                 $('#providers').show();
                 $('#provider-services').data('jsp').destroy();
                 $('#provider-services').jScrollPane({ mouseWheelSpeed: 70 });
-                BackendUsers.helper = new ProvidersHelper();
+                helper = new ProvidersHelper();
             } else if ($(this).hasClass('secretaries-tab')) { // display secretaries tab
                 $('#secretaries').show();
-                BackendUsers.helper = new SecretariesHelper();
+                helper = new SecretariesHelper();
 
                 // Update the list with the all the available providers.
-                var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers';
-                var postData = {
-                    'csrfToken': GlobalVariables.csrfToken,
-                    'key': ''
-                };
+                var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers',
+                    postData = {
+                        csrfToken: GlobalVariables.csrfToken,
+                        key: ''
+                    };
                 $.post(postUrl, postData, function(response) {
-                    if (!GeneralFunctions.handleAjaxExceptions(response)) return;
+                    if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                        return;
+                    }
 
                     GlobalVariables.providers = response;
 
@@ -158,8 +176,9 @@ var BackendUsers = {
                 }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
             }
 
-            BackendUsers.helper.resetForm();
-            BackendUsers.helper.filter('');
+            helper.resetForm();
+            helper.filter('');
+            helper.bindEventHandlers();
             $('.filter-key').val('');
         });
 
@@ -182,15 +201,18 @@ var BackendUsers = {
                 return;
             }
 
-            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_validate_username';
-            var postData = {
-                'csrfToken': GlobalVariables.csrfToken,
-                'username': $input.val(),
-                'user_id': userId
-            };
+            var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_validate_username',
+                postData = {
+                    csrfToken: GlobalVariables.csrfToken,
+                    username: $input.val(),
+                    user_id: userId
+                };
 
             $.post(postUrl, postData, function(response) {
-                if (!GeneralFunctions.handleAjaxExceptions(response)) return;
+                if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                    return;
+                }
+
                 if (response == false) {
                     $input.css('border', '2px solid red');
                     $input.attr('already-exists', 'true');
@@ -205,19 +227,6 @@ var BackendUsers = {
                 }
             }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
         });
+    };
 
-        // ------------------------------------------------------------------------
-
-        AdminsHelper.prototype.bindEventHandlers();
-
-        // ------------------------------------------------------------------------
-
-        ProvidersHelper.prototype.bindEventHandlers();
-
-        // ------------------------------------------------------------------------
-
-        SecretariesHelper.prototype.bindEventHandlers();
-
-        // ------------------------------------------------------------------------
-    }
-};
+})(window.BackendUsers);
diff --git a/src/assets/js/backend_users_admins.js b/src/assets/js/backend_users_admins.js
index 71d2e6b8..a579871f 100644
--- a/src/assets/js/backend_users_admins.js
+++ b/src/assets/js/backend_users_admins.js
@@ -9,401 +9,418 @@
  * @since       v1.0.0
  * ---------------------------------------------------------------------------- */
 
-/**
- * This class contains the Admins helper class declaration, along with the "Admins" tab
- * event handlers. By deviding the backend/users tab functionality into separate files
- * it is easier to maintain the code.
- *
- * @class AdminsHelper
- */
-var AdminsHelper = function() {
-    this.filterResults = {}; // Store the results for later use.
-};
+(function() {
+
+    'use strict';
 
-/**
- * Bind the event handlers for the backend/users "Admins" tab.
- */
-AdminsHelper.prototype.bindEventHandlers = function() {
     /**
-     * Event: Filter Admins Form "Sumbit"
+     * This class contains the Admins helper class declaration, along with the "Admins" tab
+     * event handlers. By deviding the backend/users tab functionality into separate files
+     * it is easier to maintain the code.
      *
-     * Filter the admin records with the given key string.
+     * @class AdminsHelper
      */
-    $('#filter-admins form').submit(function(event) {
-        var key = $('#filter-admins .key').val();
-        $('#filter-admins .selected-row').removeClass('selected-row');
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter(key);
-        return false;
-    });
+    var AdminsHelper = function() {
+        this.filterResults = []; // Store the results for later use.
+    };
 
     /**
-     * Event: Clear Filter Results Button "Click"
+     * Bind the event handlers for the backend/users "Admins" tab.
      */
-    $('#filter-admins .clear').click(function() {
-        BackendUsers.helper.filter('');
-        $('#filter-admins .key').val('');
-        BackendUsers.helper.resetForm();
-    });
+    AdminsHelper.prototype.bindEventHandlers = function() {
+        /**
+         * Event: Filter Admins Form "Sumbit"
+         *
+         * Filter the admin records with the given key string.
+         */
+        $('#admins').on('submit', '#filter-admins form', function(event) {
+            var key = $('#filter-admins .key').val();
+            $('#filter-admins .selected-row').removeClass('selected-row');
+            this.resetForm();
+            this.filter(key);
+            return false;
+        }.bind(this));
 
-    /**
-     * Event: Filter Admin Row "Click"
-     *
-     * Display the selected admin data to the user.
-     */
-    $(document).on('click', '.admin-row', function() {
-        if ($('#filter-admins .filter').prop('disabled')) {
+        /**
+         * Event: Clear Filter Results Button "Click"
+         */
+        $('#admins').on('click', '#filter-admins .clear', function() {
+            this.filter('');
+            $('#filter-admins .key').val('');
+            this.resetForm();
+        }.bind(this));
+
+        /**
+         * Event: Filter Admin Row "Click"
+         *
+         * Display the selected admin data to the user.
+         */
+        $('#admins').on('click', '.admin-row', function(e) {
+            if ($('#filter-admins .filter').prop('disabled')) {
+                $('#filter-admins .results').css('color', '#AAA');
+                return; // exit because we are currently on edit mode
+            }
+
+            var adminId = $(e.currentTarget).attr('data-id'),
+                admin = {};
+            $.each(this.filterResults, function(index, item) {
+                if (item.id === adminId) {
+                    admin = item;
+                    return false;
+                }
+            });
+
+            this.display(admin);
+            $('#filter-admins .selected-row').removeClass('selected-row');
+            $(e.currentTarget).addClass('selected-row');
+            $('#edit-admin, #delete-admin').prop('disabled', false);
+        }.bind(this));
+
+        /**
+         * Event: Add New Admin Button "Click"
+         */
+        $('#admins').on('click', '#add-admin', function() {
+            this.resetForm();
+            $('#admins .add-edit-delete-group').hide();
+            $('#admins .save-cancel-group').show();
+            $('#admins .details').find('input, textarea').prop('readonly', false);
+            $('#admin-password, #admin-password-confirm').addClass('required');
+            $('#admin-notifications').prop('disabled', false);
+            $('#filter-admins button').prop('disabled', true);
             $('#filter-admins .results').css('color', '#AAA');
-            return; // exit because we are currently on edit mode
-        }
+        }.bind(this));
 
-        var adminId = $(this).attr('data-id');
-        var admin = {};
-        $.each(BackendUsers.helper.filterResults, function(index, item) {
-            if (item.id === adminId) {
-                admin = item;
-                return false;
-            }
+        /**
+         * Event: Edit Admin Button "Click"
+         */
+        $('#admins').on('click', '#edit-admin', function() {
+            $('#admins .add-edit-delete-group').hide();
+            $('#admins .save-cancel-group').show();
+            $('#admins .details').find('input, textarea').prop('readonly', false);
+            $('#admin-password, #admin-password-confirm').removeClass('required');
+            $('#admin-notifications').prop('disabled', false);
+
+            $('#filter-admins .filter').prop('disabled', true);
+            $('#filter-admins .results').css('color', '#AAA');
         });
 
-        BackendUsers.helper.display(admin);
-        $('#filter-admins .selected-row').removeClass('selected-row');
-        $(this).addClass('selected-row');
-        $('#edit-admin, #delete-admin').prop('disabled', false);
-    });
+        /**
+         * Event: Delete Admin Button "Click"
+         */
+        $('#admins').on('click', '#delete-admin', function() {
+            var adminId = $('#admin-id').val();
 
-    /**
-     * Event: Add New Admin Button "Click"
-     */
-    $('#add-admin').click(function() {
-        BackendUsers.helper.resetForm();
-        $('#admins .add-edit-delete-group').hide();
-        $('#admins .save-cancel-group').show();
-        $('#admins .details').find('input, textarea').prop('readonly', false);
-        $('#admin-password, #admin-password-confirm').addClass('required');
-        $('#admin-notifications').prop('disabled', false);
-        $('#filter-admins button').prop('disabled', true);
-        $('#filter-admins .results').css('color', '#AAA');
-    });
+            var messageBtns = {};
+            messageBtns[EALang['delete']] = function() {
+                this.delete(adminId);
+                $('#message_box').dialog('close');
+            }.bind(this);
+            messageBtns[EALang['cancel']] = function() {
+                $('#message_box').dialog('close');
+            };
 
-    /**
-     * Event: Edit Admin Button "Click"
-     */
-    $('#edit-admin').click(function() {
-        $('#admins .add-edit-delete-group').hide();
-        $('#admins .save-cancel-group').show();
-        $('#admins .details').find('input, textarea').prop('readonly', false);
-        $('#admin-password, #admin-password-confirm').removeClass('required');
-        $('#admin-notifications').prop('disabled', false);
+            GeneralFunctions.displayMessageBox(EALang['delete_admin'],
+                    EALang['delete_record_prompt'], messageBtns);
+        }.bind(this));
 
-        $('#filter-admins .filter').prop('disabled', true);
-        $('#filter-admins .results').css('color', '#AAA');
-    });
+        /**
+         * Event: Save Admin Button "Click"
+         */
+        $('#admins').on('click', '#save-admin', function() {
+            var admin = {
+                first_name: $('#admin-first-name').val(),
+                last_name: $('#admin-last-name').val(),
+                email: $('#admin-email').val(),
+                mobile_number: $('#admin-mobile-number').val(),
+                phone_number: $('#admin-phone-number').val(),
+                address: $('#admin-address').val(),
+                city: $('#admin-city').val(),
+                state: $('#admin-state').val(),
+                zip_code: $('#admin-zip-code').val(),
+                notes: $('#admin-notes').val(),
+                settings: {
+                    username: $('#admin-username').val(),
+                    notifications: $('#admin-notifications').hasClass('active')
+                }
+            };
 
-    /**
-     * Event: Delete Admin Button "Click"
-     */
-    $('#delete-admin').click(function() {
-        var adminId = $('#admin-id').val();
-
-        var messageBtns = {};
-        messageBtns[EALang['delete']] = function() {
-            BackendUsers.helper.delete(adminId);
-            $('#message_box').dialog('close');
-        };
-        messageBtns[EALang['cancel']] = function() {
-            $('#message_box').dialog('close');
-        };
-
-        GeneralFunctions.displayMessageBox(EALang['delete_admin'],
-                EALang['delete_record_prompt'], messageBtns);
-    });
-
-    /**
-     * Event: Save Admin Button "Click"
-     */
-    $('#save-admin').click(function() {
-        var admin = {
-            'first_name': $('#admin-first-name').val(),
-            'last_name': $('#admin-last-name').val(),
-            'email': $('#admin-email').val(),
-            'mobile_number': $('#admin-mobile-number').val(),
-            'phone_number': $('#admin-phone-number').val(),
-            'address': $('#admin-address').val(),
-            'city': $('#admin-city').val(),
-            'state': $('#admin-state').val(),
-            'zip_code': $('#admin-zip-code').val(),
-            'notes': $('#admin-notes').val(),
-            'settings': {
-                'username': $('#admin-username').val(),
-                'notifications': $('#admin-notifications').hasClass('active')
+            // Include password if changed.
+            if ($('#admin-password').val() !== '') {
+                admin.settings.password = $('#admin-password').val();
             }
-        };
 
-        // Include password if changed.
-        if ($('#admin-password').val() !== '') {
-            admin.settings.password = $('#admin-password').val();
-        }
+            // Include id if changed.
+            if ($('#admin-id').val() !== '') {
+                admin.id = $('#admin-id').val();
+            }
 
-        // Include id if changed.
-        if ($('#admin-id').val() !== '') {
-            admin.id = $('#admin-id').val();
-        }
+            if (!this.validate(admin)) {
+                return;
+            }
 
-        if (!BackendUsers.helper.validate(admin)) return;
+            this.save(admin);
+        }.bind(this));
 
-        BackendUsers.helper.save(admin);
-    });
+        /**
+         * Event: Cancel Admin Button "Click"
+         *
+         * Cancel add or edit of an admin record.
+         */
+        $('#admins').on('click', '#cancel-admin', function() {
+            var id = $('#admin-id').val();
+            this.resetForm();
+            if (id != '') {
+                this.select(id, true);
+            }
+        }.bind(this));
+    };
 
     /**
-     * Event: Cancel Admin Button "Click"
+     * Save admin record to database.
      *
-     * Cancel add or edit of an admin record.
+     * @param {object} admin Contains the admin record data. If an 'id' value is provided
+     * then the update operation is going to be executed.
      */
-    $('#cancel-admin').click(function() {
-        var id = $('#admin-id').val();
-        BackendUsers.helper.resetForm();
-        if (id != '') {
-            BackendUsers.helper.select(id, true);
-        }
-    });
-};
+    AdminsHelper.prototype.save = function(admin) {
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_admin',
+            postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                admin: JSON.stringify(admin)
+            };
 
-/**
- * Save admin record to database.
- *
- * @param {object} admin Contains the admin record data. If an 'id' value is provided
- * 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';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'admin': JSON.stringify(admin)
-    };
-
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
-        Backend.displayNotification(EALang['admin_saved']);
-        BackendUsers.helper.resetForm();
-        $('#filter-admins .key').val('');
-        BackendUsers.helper.filter('', response.id, true);
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
-
-/**
- * Delete an admin record from database.
- *
- * @param {int} id Record id to be deleted.
- */
-AdminsHelper.prototype.delete = function(id) {
-    var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_admin';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'admin_id': id
-    };
-
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
-        Backend.displayNotification(EALang['admin_deleted']);
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter($('#filter-admins .key').val());
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
-
-/**
- * Validates an admin record.
- *
- * @param {object} admin Contains the admin data to be validated.
- * @returns {bool} Returns the validation result.
- */
-AdminsHelper.prototype.validate = function(admin) {
-    $('#admins .required').css('border', '');
-    $('#admin-password, #admin-password-confirm').css('border', '');
-
-    try {
-        // Validate required fields.
-        var missingRequired = false;
-        $('#admins .required').each(function() {
-            if ($(this).val() == '' || $(this).val() == undefined) {
-                $(this).css('border', '2px solid red');
-                missingRequired = true;
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
             }
-        });
-        if (missingRequired) {
-            throw 'Fields with * are  required.';
-        }
-
-        // Validate passwords.
-        if ($('#admin-password').val() != $('#admin-password-confirm').val()) {
-            $('#admin-password, #admin-password-confirm').css('border', '2px solid red');
-            throw EALang['passwords_mismatch'];
-        }
-
-        if ($('#admin-password').val().length < BackendUsers.MIN_PASSWORD_LENGTH
-                && $('#admin-password').val() != '') {
-            $('#admin-password, #admin-password-confirm').css('border', '2px solid red');
-
-            throw EALang['password_length_notice'].replace('$number', BackendUsers.MIN_PASSWORD_LENGTH);
-        }
-
-        // Validate user email.
-        if (!GeneralFunctions.validateEmail($('#admin-email').val())) {
-            $('#admin-email').css('border', '2px solid red');
-            throw EALang['invalid_email'];
-        }
-
-        // Check if username exists
-        if ($('#admin-username').attr('already-exists') ==  'true') {
-            $('#admin-username').css('border', '2px solid red');
-            throw EALang['username_already_exists'];
-        }
-
-        return true;
-    } catch(exc) {
-        $('#admins .form-message').text(exc);
-        $('#admins .form-message').show();
-        return false;
-    }
-};
-
-/**
- * Resets the admin form back to its initial state.
- */
-AdminsHelper.prototype.resetForm = function() {
-    $('#admins .add-edit-delete-group').show();
-    $('#admins .save-cancel-group').hide();
-    $('#admins .details').find('input, textarea').prop('readonly', true);
-    $('#admins .form-message').hide();
-    $('#admin-notifications').prop('disabled', true);
-    $('#admins .required').css('border', '');
-    $('#admin-password, #admin-password-confirm').css('border', '');
-    $('#admins .details').find('input, textarea').val('');
-    $('#admin-notifications').removeClass('active');
-    $('#edit-admin, #delete-admin').prop('disabled', true);
-
-    $('#filter-admins .selected-row').removeClass('selected-row');
-    $('#filter-admins button').prop('disabled', false);
-    $('#filter-admins .results').css('color', '');
-};
-
-/**
- * Display a admin record into the admin form.
- *
- * @param {object} admin Contains the admin record data.
- */
-AdminsHelper.prototype.display = function(admin) {
-    $('#admin-id').val(admin.id);
-    $('#admin-first-name').val(admin.first_name);
-    $('#admin-last-name').val(admin.last_name);
-    $('#admin-email').val(admin.email);
-    $('#admin-mobile-number').val(admin.mobile_number);
-    $('#admin-phone-number').val(admin.phone_number);
-    $('#admin-address').val(admin.address);
-    $('#admin-city').val(admin.city);
-    $('#admin-state').val(admin.state);
-    $('#admin-zip-code').val(admin.zip_code);
-    $('#admin-notes').val(admin.notes);
-
-    $('#admin-username').val(admin.settings.username);
-    if (admin.settings.notifications == true) {
-        $('#admin-notifications').addClass('active');
-    } else {
-        $('#admin-notifications').removeClass('active');
-    }
-};
-
-/**
- * Filters admin records depending a key string.
- *
- * @param {string} key This string is used to filter the admin records of the database.
- * @param {numeric} selectId (OPTIONAL = undefined) This record id will be selected when
- * the filter operation is finished.
- * @param {bool} display (OPTIONAL = false) If true the selected record data are going
- * to be displayed on the details column (requires a selected record though).
- */
-AdminsHelper.prototype.filter = function(key, selectId, display) {
-    if (display == undefined) display = false;
-
-    var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_admins';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'key': key
+            Backend.displayNotification(EALang['admin_saved']);
+            this.resetForm();
+            $('#filter-admins .key').val('');
+            this.filter('', response.id, true);
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
     };
 
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
+    /**
+     * Delete an admin record from database.
+     *
+     * @param {int} 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
+            };
 
-        BackendUsers.helper.filterResults = response;
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+            Backend.displayNotification(EALang['admin_deleted']);
+            this.resetForm();
+            this.filter($('#filter-admins .key').val());
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
 
-        $('#filter-admins .results').data('jsp').destroy();
-        $('#filter-admins .results').html('');
-        $.each(response, function(index, admin) {
-            var html = AdminsHelper.prototype.getFilterHtml(admin);
-            $('#filter-admins .results').append(html);
-        });
-        $('#filter-admins .results').jScrollPane({ mouseWheelSpeed: 70 });
+    /**
+     * Validates an admin record.
+     *
+     * @param {object} admin Contains the admin data to be validated.
+     * @returns {bool} Returns the validation result.
+     */
+    AdminsHelper.prototype.validate = function(admin) {
+        $('#admins .required').css('border', '');
+        $('#admin-password, #admin-password-confirm').css('border', '');
 
-        if (response.length == 0) {
-            $('#filter-admins .results').html('<em>' + EALang['no_records_found'] + '</em>')
-        }
+        try {
+            // Validate required fields.
+            var missingRequired = false;
+            $('#admins .required').each(function() {
+                if ($(this).val() == '' || $(this).val() == undefined) {
+                    $(this).css('border', '2px solid red');
+                    missingRequired = true;
+                }
+            });
+            if (missingRequired) {
+                throw 'Fields with * are  required.';
+            }
 
-        if (selectId != undefined) {
-            BackendUsers.helper.select(selectId, display);
-        }
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
+            // Validate passwords.
+            if ($('#admin-password').val() != $('#admin-password-confirm').val()) {
+                $('#admin-password, #admin-password-confirm').css('border', '2px solid red');
+                throw EALang['passwords_mismatch'];
+            }
 
-/**
- * Get an admin row html code that is going to be displayed on the filter results list.
- *
- * @param {object} admin Contains the admin record data.
- * @returns {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;
-    var info = admin.email;
-    info = (admin.mobile_number != '' && admin.mobile_number != null)
-            ? info + ', ' + admin.mobile_number : info;
-    info = (admin.phone_number != '' && admin.phone_number != null)
-            ? info + ', ' + admin.phone_number : info;
+            if ($('#admin-password').val().length < BackendUsers.MIN_PASSWORD_LENGTH
+                    && $('#admin-password').val() != '') {
+                $('#admin-password, #admin-password-confirm').css('border', '2px solid red');
+                throw EALang['password_length_notice'].replace('$number', BackendUsers.MIN_PASSWORD_LENGTH);
+            }
 
-    var html =
-            '<div class="admin-row" data-id="' + admin.id + '">' +
-                '<strong>' + name + '</strong><br>' +
-                info + '<br>' +
-            '</div><hr>';
+            // Validate user email.
+            if (!GeneralFunctions.validateEmail($('#admin-email').val())) {
+                $('#admin-email').css('border', '2px solid red');
+                throw EALang['invalid_email'];
+            }
 
-    return html;
-};
+            // Check if username exists
+            if ($('#admin-username').attr('already-exists') ==  'true') {
+                $('#admin-username').css('border', '2px solid red');
+                throw EALang['username_already_exists'];
+            }
 
-/**
- * Select a specific record from the current filter results. If the admin id does not exist
- * in the list then no record will be selected.
- *
- * @param {numeric} id The record id to be selected from the filter results.
- * @param {bool} display (OPTIONAL = false) If true then the method will display the record
- * on the form.
- */
-AdminsHelper.prototype.select = function(id, display) {
-    if (display == undefined) display = false;
-
-    $('#filter-admins .selected-row').removeClass('selected-row');
-
-    $('.admin-row').each(function() {
-        if ($(this).attr('data-id') == id) {
-            $(this).addClass('selected-row');
+            return true;
+        } catch(exc) {
+            $('#admins .form-message').text(exc);
+            $('#admins .form-message').show();
             return false;
         }
-    });
+    };
 
-    if (display) {
-        $.each(BackendUsers.helper.filterResults, function(index, admin) {
-            if (admin.id == id) {
-                BackendUsers.helper.display(admin);
-                $('#edit-admin, #delete-admin').prop('disabled', false);
+    /**
+     * Resets the admin form back to its initial state.
+     */
+    AdminsHelper.prototype.resetForm = function() {
+        $('#admins .add-edit-delete-group').show();
+        $('#admins .save-cancel-group').hide();
+        $('#admins .details').find('input, textarea').prop('readonly', true);
+        $('#admins .form-message').hide();
+        $('#admin-notifications').prop('disabled', true);
+        $('#admins .required').css('border', '');
+        $('#admin-password, #admin-password-confirm').css('border', '');
+        $('#admins .details').find('input, textarea').val('');
+        $('#admin-notifications').removeClass('active');
+        $('#edit-admin, #delete-admin').prop('disabled', true);
+
+        $('#filter-admins .selected-row').removeClass('selected-row');
+        $('#filter-admins button').prop('disabled', false);
+        $('#filter-admins .results').css('color', '');
+    };
+
+    /**
+     * Display a admin record into the admin form.
+     *
+     * @param {object} admin Contains the admin record data.
+     */
+    AdminsHelper.prototype.display = function(admin) {
+        $('#admin-id').val(admin.id);
+        $('#admin-first-name').val(admin.first_name);
+        $('#admin-last-name').val(admin.last_name);
+        $('#admin-email').val(admin.email);
+        $('#admin-mobile-number').val(admin.mobile_number);
+        $('#admin-phone-number').val(admin.phone_number);
+        $('#admin-address').val(admin.address);
+        $('#admin-city').val(admin.city);
+        $('#admin-state').val(admin.state);
+        $('#admin-zip-code').val(admin.zip_code);
+        $('#admin-notes').val(admin.notes);
+
+        $('#admin-username').val(admin.settings.username);
+        if (admin.settings.notifications == true) {
+            $('#admin-notifications').addClass('active');
+        } else {
+            $('#admin-notifications').removeClass('active');
+        }
+    };
+
+    /**
+     * Filters admin records depending a key string.
+     *
+     * @param {string} key This string is used to filter the admin records of the database.
+     * @param {numeric} selectId (OPTIONAL = undefined) This record id will be selected when
+     * the filter operation is finished.
+     * @param {bool} display (OPTIONAL = false) If true the selected record data are going
+     * to be displayed on the details column (requires a selected record though).
+     */
+    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
+            };
+
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+
+            this.filterResults = response;
+
+            $('#filter-admins .results').data('jsp').destroy();
+            $('#filter-admins .results').html('');
+            $.each(response, function(index, admin) {
+                var html = this.getFilterHtml(admin);
+                $('#filter-admins .results').append(html);
+            }.bind(this));
+            $('#filter-admins .results').jScrollPane({ mouseWheelSpeed: 70 });
+
+            if (response.length == 0) {
+                $('#filter-admins .results').html('<em>' + EALang['no_records_found'] + '</em>')
+            }
+
+            if (selectId != undefined) {
+                this.select(selectId, display);
+            }
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
+
+    /**
+     * Get an admin row html code that is going to be displayed on the filter results list.
+     *
+     * @param {object} admin Contains the admin record data.
+     * @returns {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;
+
+        info = (admin.mobile_number != '' && admin.mobile_number != null)
+                ? info + ', ' + admin.mobile_number : info;
+
+        info = (admin.phone_number != '' && admin.phone_number != null)
+                ? info + ', ' + admin.phone_number : info;
+
+        var html =
+                '<div class="admin-row" data-id="' + admin.id + '">' +
+                    '<strong>' + name + '</strong><br>' +
+                    info + '<br>' +
+                '</div><hr>';
+
+        return html;
+    };
+
+    /**
+     * Select a specific record from the current filter results. If the admin id does not exist
+     * in the list then no record will be selected.
+     *
+     * @param {numeric} id The record id to be selected from the filter results.
+     * @param {bool} display (OPTIONAL = false) If true then the method will display the record
+     * on the form.
+     */
+    AdminsHelper.prototype.select = function(id, display) {
+        display = display || false;
+
+        $('#filter-admins .selected-row').removeClass('selected-row');
+
+        $('.admin-row').each(function() {
+            if ($(this).attr('data-id') == id) {
+                $(this).addClass('selected-row');
                 return false;
             }
         });
-    }
-};
+
+        if (display) {
+            $.each(this.filterResults, function(index, admin) {
+                if (admin.id == id) {
+                    this.display(admin);
+                    $('#edit-admin, #delete-admin').prop('disabled', false);
+                    return false;
+                }
+            }.bind(this));
+        }
+    };
+
+    window.AdminsHelper = AdminsHelper;
+
+})();
diff --git a/src/assets/js/backend_users_providers.js b/src/assets/js/backend_users_providers.js
index 92318cfc..1a440270 100644
--- a/src/assets/js/backend_users_providers.js
+++ b/src/assets/js/backend_users_providers.js
@@ -9,538 +9,561 @@
  * @since       v1.0.0
  * ---------------------------------------------------------------------------- */
 
-/**
- * This class contains the Providers helper class declaration, along with the "Providers" tab
- * event handlers. By deviding the backend/users tab functionality into separate files
- * it is easier to maintain the code.
- *
- * @class ProvidersHelper
- */
-var ProvidersHelper = function() {
-    this.filterResults = {}; // Store the results for later use.
-};
+(function() {
+
+    'use strict';
 
-/**
- * Bind the event handlers for the backend/users "Providers" tab.
- */
-ProvidersHelper.prototype.bindEventHandlers = function() {
     /**
-     * Event: Filter Providers Form "Submit"
+     * Providers Helper
      *
-     * Filter the provider records with the given key string.
-     */
-    $('#filter-providers form').submit(function(event) {
-        var key = $('#filter-providers .key').val();
-        $('.selected-row').removeClass('selected-row');
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter(key);
-        return false;
-    });
-
-    /**
-     * Event: Clear Filter Button "Click"
-     */
-    $('#filter-providers .clear').click(function() {
-        BackendUsers.helper.filter('');
-        $('#filter-providers .key').val('');
-        BackendUsers.helper.resetForm();
-    });
-
-    /**
-     * Event: Filter Provider Row "Click"
+     * This class contains the Providers helper class declaration, along with the "Providers" tab
+     * event handlers. By deviding the backend/users tab functionality into separate files
+     * it is easier to maintain the code.
      *
-     * Display the selected provider data to the user.
+     * @class ProvidersHelper
      */
-    $(document).on('click', '.provider-row', function() {
-        if ($('#filter-providers .filter').prop('disabled')) {
+    var ProvidersHelper = function() {
+        this.filterResults = {}; // Store the results for later use.
+    };
+
+    /**
+     * Bind the event handlers for the backend/users "Providers" tab.
+     */
+    ProvidersHelper.prototype.bindEventHandlers = function() {
+        /**
+         * Event: Filter Providers Form "Submit"
+         *
+         * Filter the provider records with the given key string.
+         */
+        $('#providers').on('submit', '#filter-providers form', function(event) {
+            var key = $('#filter-providers .key').val();
+            $('.selected-row').removeClass('selected-row');
+            this.resetForm();
+            this.filter(key);
+            return false;
+        }.bind(this));
+
+        /**
+         * Event: Clear Filter Button "Click"
+         */
+        $('#providers').on('click', '#filter-providers .clear', function() {
+            this.filter('');
+            $('#filter-providers .key').val('');
+            this.resetForm();
+        }.bind(this));
+
+        /**
+         * Event: Filter Provider Row "Click"
+         *
+         * Display the selected provider data to the user.
+         */
+        $('#providers').on('click', '.provider-row', function(e) {
+            if ($('#filter-providers .filter').prop('disabled')) {
+                $('#filter-providers .results').css('color', '#AAA');
+                return; // Exit because we are currently on edit mode.
+            }
+
+            var providerId = $(e.currentTarget).attr('data-id'),
+                provider = {};
+            $.each(this.filterResults, function(index, item) {
+                if (item.id === providerId) {
+                    provider = item;
+                    return false;
+                }
+            });
+
+            this.display(provider);
+            $('#filter-providers .selected-row').removeClass('selected-row');
+            $(e.currentTarget).addClass('selected-row');
+            $('#edit-provider, #delete-provider').prop('disabled', false);
+        }.bind(this));
+
+        /**
+         * Event: Add New Provider Button "Click"
+         */
+        $('#providers').on('click', '#add-provider', function() {
+            this.resetForm();
+            $('#filter-providers button').prop('disabled', true);
             $('#filter-providers .results').css('color', '#AAA');
-            return; // Exit because we are currently on edit mode.
-        }
+            $('#providers .add-edit-delete-group').hide();
+            $('#providers .save-cancel-group').show();
+            $('#providers .details').find('input, textarea').prop('readonly', false);
+            $('#provider-password, #provider-password-confirm').addClass('required');
+            $('#provider-notifications').prop('disabled', false);
+            $('#providers').find('.add-break, .edit-break, .delete-break, #reset-working-plan').prop('disabled', false);
+            $('#provider-services input[type="checkbox"]').prop('disabled', false);
+            $('#providers input[type="checkbox"]').prop('disabled', false);
 
-        var providerId = $(this).attr('data-id');
-        var provider = {};
-        $.each(BackendUsers.helper.filterResults, function(index, item) {
-            if (item.id === providerId) {
-                provider = item;
-                return false;
-            }
+            // Apply default working plan
+            BackendUsers.wp.setup(GlobalVariables.workingPlan);
+            BackendUsers.wp.timepickers(false);
+        }.bind(this));
+
+        /**
+         * Event: Edit Provider Button "Click"
+         */
+        $('#providers').on('click', '#edit-provider', function() {
+            $('#providers .add-edit-delete-group').hide();
+            $('#providers .save-cancel-group').show();
+            $('#filter-providers button').prop('disabled', true);
+            $('#filter-providers .results').css('color', '#AAA');
+            $('#providers .details').find('input, textarea').prop('readonly', false);
+            $('#provider-password, #provider-password-confirm').removeClass('required');
+            $('#provider-notifications').prop('disabled', false);
+            $('#provider-services input[type="checkbox"]').prop('disabled', false);
+            $('#providers').find('.add-break, .edit-break, .delete-break, #reset-working-plan').prop('disabled', false);
+            $('#providers input[type="checkbox"]').prop('disabled', false);
+            BackendUsers.wp.timepickers(false);
         });
 
-        BackendUsers.helper.display(provider);
-        $('#filter-providers .selected-row').removeClass('selected-row');
-        $(this).addClass('selected-row');
-        $('#edit-provider, #delete-provider').prop('disabled', false);
-    });
+        /**
+         * Event: Delete Provider Button "Click"
+         */
+        $('#providers').on('click', '#delete-provider', function() {
+            var providerId = $('#provider-id').val();
 
-    /**
-     * Event: Add New Provider Button "Click"
-     */
-    $('#add-provider').click(function() {
-        BackendUsers.helper.resetForm();
-        $('#filter-providers button').prop('disabled', true);
-        $('#filter-providers .results').css('color', '#AAA');
-        $('#providers .add-edit-delete-group').hide();
-        $('#providers .save-cancel-group').show();
-        $('#providers .details').find('input, textarea').prop('readonly', false);
-        $('#provider-password, #provider-password-confirm').addClass('required');
-        $('#provider-notifications').prop('disabled', false);
-        $('#providers').find('.add-break, .edit-break, .delete-break, #reset-working-plan').prop('disabled', false);
-        $('#provider-services input[type="checkbox"]').prop('disabled', false);
-        $('#providers input[type="checkbox"]').prop('disabled', false);
+            var messageBtns = {};
+            messageBtns[EALang['delete']] = function() {
+                this.delete(providerId);
+                $('#message_box').dialog('close');
+            }.bind(this);
+            messageBtns[EALang['cancel']] = function() {
+                $('#message_box').dialog('close');
+            };
 
-        // Apply default working plan
-        BackendUsers.wp.setup(GlobalVariables.workingPlan);
-        BackendUsers.wp.timepickers(false);
-    });
+            GeneralFunctions.displayMessageBox(EALang['delete_provider'],
+                    EALang['delete_record_prompt'], messageBtns);
+        }.bind(this));
 
-    /**
-     * Event: Edit Provider Button "Click"
-     */
-    $('#edit-provider').click(function() {
-        $('#providers .add-edit-delete-group').hide();
-        $('#providers .save-cancel-group').show();
-        $('#filter-providers button').prop('disabled', true);
-        $('#filter-providers .results').css('color', '#AAA');
-        $('#providers .details').find('input, textarea').prop('readonly', false);
-        $('#provider-password, #provider-password-confirm').removeClass('required');
-        $('#provider-notifications').prop('disabled', false);
-        $('#provider-services input[type="checkbox"]').prop('disabled', false);
-        $('#providers').find('.add-break, .edit-break, .delete-break, #reset-working-plan').prop('disabled', false);
-        $('#providers input[type="checkbox"]').prop('disabled', false);
-        BackendUsers.wp.timepickers(false);
-    });
+        /**
+         * Event: Save Provider Button "Click"
+         */
+        $('#providers').on('click', '#save-provider', function() {
+            var provider = {
+                first_name: $('#provider-first-name').val(),
+                last_name: $('#provider-last-name').val(),
+                email: $('#provider-email').val(),
+                mobile_number: $('#provider-mobile-number').val(),
+                phone_number: $('#provider-phone-number').val(),
+                address: $('#provider-address').val(),
+                city: $('#provider-city').val(),
+                state: $('#provider-state').val(),
+                zip_code: $('#provider-zip-code').val(),
+                notes: $('#provider-notes').val(),
+                settings: {
+                    username: $('#provider-username').val(),
+                    working_plan: JSON.stringify(BackendUsers.wp.get()),
+                    notifications: $('#provider-notifications').hasClass('active')
+                }
+            };
 
-    /**
-     * Event: Delete Provider Button "Click"
-     */
-    $('#delete-provider').click(function() {
-        var providerId = $('#provider-id').val();
+            // Include provider services.
+            provider.services = [];
+            $('#provider-services input[type="checkbox"]').each(function() {
+                if ($(this).prop('checked')) {
+                    provider.services.push($(this).attr('data-id'));
+                }
+            });
 
-        var messageBtns = {};
-        messageBtns[EALang['delete']] = function() {
-            BackendUsers.helper.delete(providerId);
-            $('#message_box').dialog('close');
-        };
-        messageBtns[EALang['cancel']] = function() {
-            $('#message_box').dialog('close');
-        };
-
-        GeneralFunctions.displayMessageBox(EALang['delete_provider'],
-                EALang['delete_record_prompt'], messageBtns);
-    });
-
-    /**
-     * Event: Save Provider Button "Click"
-     */
-    $('#save-provider').click(function() {
-        var provider = {
-            'first_name': $('#provider-first-name').val(),
-            'last_name': $('#provider-last-name').val(),
-            'email': $('#provider-email').val(),
-            'mobile_number': $('#provider-mobile-number').val(),
-            'phone_number': $('#provider-phone-number').val(),
-            'address': $('#provider-address').val(),
-            'city': $('#provider-city').val(),
-            'state': $('#provider-state').val(),
-            'zip_code': $('#provider-zip-code').val(),
-            'notes': $('#provider-notes').val(),
-            'settings': {
-                'username': $('#provider-username').val(),
-                'working_plan': JSON.stringify(BackendUsers.wp.get()),
-                'notifications': $('#provider-notifications').hasClass('active')
+            // Include password if changed.
+            if ($('#provider-password').val() !== '') {
+                provider.settings.password = $('#provider-password').val();
             }
-        };
 
-        // Include provider services.
-        provider.services = [];
-        $('#provider-services input[type="checkbox"]').each(function() {
-            if ($(this).prop('checked')) {
-                provider.services.push($(this).attr('data-id'));
+            // Include id if changed.
+            if ($('#provider-id').val() !== '') {
+                provider.id = $('#provider-id').val();
             }
+
+            if (!this.validate(provider)) {
+                return;
+            }
+
+            this.save(provider);
+        }.bind(this));
+
+        /**
+         * Event: Cancel Provider Button "Click"
+         *
+         * Cancel add or edit of an provider record.
+         */
+        $('#providers').on('click', '#cancel-provider', function() {
+            var id = $('#filter-providers .selected-row').attr('data-id');
+            this.resetForm();
+            if (id != '') {
+                this.select(id, true);
+            }
+        }.bind(this));
+
+        /**
+         * Event: Display Provider Details "Click"
+         */
+        $('#providers').on('click', '.display-details', function() {
+            $('#providers .switch-view .current').removeClass('current');
+            $(this).addClass('current');
+            $('.working-plan-view').hide('fade', function() {
+                $('.details-view').show('fade');
+            });
         });
 
-        // Include password if changed.
-        if ($('#provider-password').val() !== '') {
-            provider.settings.password = $('#provider-password').val();
-        }
+        /**
+         * Event: Display Provider Working Plan "Click"
+         */
+        $('#providers').on('click', '.display-working-plan', function() {
+            $('#providers .switch-view .current').removeClass('current');
+            $(this).addClass('current');
+            $('.details-view').hide('fade', function() {
+                $('.working-plan-view').show('fade');
+            });
+        });
 
-        // Include id if changed.
-        if ($('#provider-id').val() !== '') {
-            provider.id = $('#provider-id').val();
-        }
-
-        if (!BackendUsers.helper.validate(provider)) return;
-
-        BackendUsers.helper.save(provider);
-    });
+        /**
+         * Event: Reset Working Plan Button "Click".
+         */
+        $('#providers').on('click', '#reset-working-plan', function() {
+            $('.breaks').empty();
+            $('.work-start, .work-end').val('');
+            BackendUsers.wp.setup(GlobalVariables.workingPlan);
+            BackendUsers.wp.timepickers(false);
+        });
+    };
 
     /**
-     * Event: Cancel Provider Button "Click"
+     * Save provider record to database.
      *
-     * Cancel add or edit of an provider record.
+     * @param {object} provider Contains the admin record data. If an 'id' value is provided
+     * then the update operation is going to be executed.
      */
-    $('#cancel-provider').click(function() {
-        var id = $('#filter-providers .selected-row').attr('data-id');
-        BackendUsers.helper.resetForm();
-        if (id != '') {
-            BackendUsers.helper.select(id, true);
-        }
-    });
+    ProvidersHelper.prototype.save = function(provider) {
+        var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_save_provider',
+            postData = {
+                csrfToken: GlobalVariables.csrfToken,
+                provider: JSON.stringify(provider)
+            };
 
-    /**
-     * Event: Display Provider Details "Click"
-     */
-    $('#providers .display-details').click(function() {
-        $('#providers .switch-view .current').removeClass('current');
-        $(this).addClass('current');
-        $('.working-plan-view').hide('fade', function() {
-            $('.details-view').show('fade');
-        });
-    });
-
-    /**
-     * Event: Display Provider Working Plan "Click"
-     */
-    $('#providers .display-working-plan').click(function() {
-        $('#providers .switch-view .current').removeClass('current');
-        $(this).addClass('current');
-        $('.details-view').hide('fade', function() {
-            $('.working-plan-view').show('fade');
-        });
-    });
-
-    /**
-     * Event: Reset Working Plan Button "Click".
-     */
-    $('#reset-working-plan').click(function() {
-        $('.breaks').empty();
-        $('.work-start, .work-end').val('');
-        BackendUsers.wp.setup(GlobalVariables.workingPlan);
-        BackendUsers.wp.timepickers(false);
-    });
-};
-
-/**
- * Save provider record to database.
- *
- * @param {object} provider Contains the admin record data. If an 'id' value is provided
- * 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';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'provider': JSON.stringify(provider)
-    };
-
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
-        Backend.displayNotification(EALang['provider_saved']);
-        BackendUsers.helper.resetForm();
-        $('#filter-providers .key').val('');
-        BackendUsers.helper.filter('', response.id, true);
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
-
-/**
- * Delete a provider record from database.
- *
- * @param {numeric} id Record id to be deleted.
- */
-ProvidersHelper.prototype.delete = function(id) {
-    var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_delete_provider';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'provider_id': id
-    };
-
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
-        Backend.displayNotification(EALang['provider_deleted']);
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter($('#filter-providers .key').val());
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
-
-/**
- * Validates a provider record.
- *
- * @param {object} provider Contains the admin data to be validated.
- * @returns {bool} Returns the validation result.
- */
-ProvidersHelper.prototype.validate = function(provider) {
-    $('#providers .required').css('border', '');
-    $('#provider-password, #provider-password-confirm').css('border', '');
-
-    try {
-        // Validate required fields.
-        var missingRequired = false;
-        $('#providers .required').each(function() {
-            if ($(this).val() == '' || $(this).val() == undefined) {
-                $(this).css('border', '2px solid red');
-                missingRequired = true;
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
             }
-        });
-        if (missingRequired) {
-            throw EALang['fields_are_required'];
-        }
-
-        // Validate passwords.
-        if ($('#provider-password').val() != $('#provider-password-confirm').val()) {
-            $('#provider-password, #provider-password-confirm').css('border', '2px solid red');
-            throw EALang['passwords_mismatch'];
-        }
-
-        if ($('#provider-password').val().length < BackendUsers.MIN_PASSWORD_LENGTH
-                && $('#provider-password').val() != '') {
-            $('#provider-password, #provider-password-confirm').css('border', '2px solid red');
-            throw EALang['password_length_notice'].replace('$number', BackendUsers.MIN_PASSWORD_LENGTH);
-        }
-
-        // Validate user email.
-        if (!GeneralFunctions.validateEmail($('#provider-email').val())) {
-            $('#provider-email').css('border', '2px solid red');
-            throw EALang['invalid_email'];
-        }
-
-        // Check if username exists
-        if ($('#provider-username').attr('already-exists') ==  'true') {
-            $('#provider-username').css('border', '2px solid red');
-            throw EALang['username_already_exists'];
-        }
-
-        return true;
-    } catch(exc) {
-        $('#providers .form-message').text(exc);
-        $('#providers .form-message').show();
-        return false;
-    }
-};
-
-/**
- * Resets the admin tab form back to its initial state.
- */
-ProvidersHelper.prototype.resetForm = function() {
-    $('#filter-providers .selected-row').removeClass('selected-row');
-    $('#filter-providers button').prop('disabled', false);
-    $('#filter-providers .results').css('color', '');
-
-    $('#providers .add-edit-delete-group').show();
-    $('#providers .save-cancel-group').hide();
-    $('#providers .details').find('input, textarea').prop('readonly', true);
-    $('#providers .form-message').hide();
-    $('#provider-notifications').removeClass('active');
-    $('#provider-notifications').prop('disabled', true);
-    $('#provider-services input[type="checkbox"]').prop('disabled', true);
-    $('#providers .required').css('border', '');
-    $('#provider-password, #provider-password-confirm').css('border', '');
-    $('#providers .add-break, #reset-working-plan').prop('disabled', true);
-    BackendUsers.wp.timepickers(true);
-    $('#providers .working-plan input[type="text"]').timepicker('destroy');
-    $('#providers .working-plan input[type="checkbox"]').prop('disabled', true);
-    $('.breaks').find('.edit-break, .delete-break').prop('disabled', true);
-
-    $('#edit-provider, #delete-provider').prop('disabled', true);
-    $('#providers .details').find('input, textarea').val('');
-    $('#providers input[type="checkbox"]').prop('checked', false);
-    $('#provider-services input[type="checkbox"]').prop('checked', false);
-    $('#providers .breaks tbody').empty();
-
-};
-
-/**
- * Display a provider record into the admin form.
- *
- * @param {object} provider Contains the provider record data.
- */
-ProvidersHelper.prototype.display = function(provider) {
-    $('#provider-id').val(provider.id);
-    $('#provider-first-name').val(provider.first_name);
-    $('#provider-last-name').val(provider.last_name);
-    $('#provider-email').val(provider.email);
-    $('#provider-mobile-number').val(provider.mobile_number);
-    $('#provider-phone-number').val(provider.phone_number);
-    $('#provider-address').val(provider.address);
-    $('#provider-city').val(provider.city);
-    $('#provider-state').val(provider.state);
-    $('#provider-zip-code').val(provider.zip_code);
-    $('#provider-notes').val(provider.notes);
-
-    $('#provider-username').val(provider.settings.username);
-    if (provider.settings.notifications == true) {
-        $('#provider-notifications').addClass('active');
-    } else {
-        $('#provider-notifications').removeClass('active');
-    }
-
-    $('#provider-services input[type="checkbox"]').prop('checked', false);
-    $.each(provider.services, function(index, serviceId) {
-        $('#provider-services input[type="checkbox"]').each(function() {
-            if ($(this).attr('data-id') == serviceId) {
-                $(this).prop('checked', true);
-            }
-        });
-    });
-
-    // Display working plan
-    $('#providers .breaks tbody').empty();
-    var workingPlan = $.parseJSON(provider.settings.working_plan);
-    BackendUsers.wp.setup(workingPlan);
-    $('.breaks').find('.edit-break, .delete-break').prop('disabled', true);
-};
-
-/**
- * Filters provider records depending a string key.
- *
- * @param {string} key This is used to filter the provider records of the database.
- * @param {numeric} selectId (OPTIONAL = undefined) If set, when the function is complete
- * a result row can be set as selected.
- * @param {bool} display (OPTIONAL = false) If true then the selected record will be also
- * displayed.
- */
-ProvidersHelper.prototype.filter = function(key, selectId, display) {
-    if (display == undefined) display = false;
-
-    var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_providers';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'key': key
+            Backend.displayNotification(EALang['provider_saved']);
+            this.resetForm();
+            $('#filter-providers .key').val('');
+            this.filter('', response.id, true);
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
     };
 
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
+    /**
+     * Delete a provider record from database.
+     *
+     * @param {numeric} 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
+            };
 
-        BackendUsers.helper.filterResults = response;
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+            Backend.displayNotification(EALang['provider_deleted']);
+            this.resetForm();
+            this.filter($('#filter-providers .key').val());
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
 
+    /**
+     * Validates a provider record.
+     *
+     * @param {object} provider Contains the admin data to be validated.
+     * @returns {bool} Returns the validation result.
+     */
+    ProvidersHelper.prototype.validate = function(provider) {
+        $('#providers .required').css('border', '');
+        $('#provider-password, #provider-password-confirm').css('border', '');
 
-        $('#filter-providers .results').data('jsp').destroy;
-        $('#filter-providers .results').html('');
-        $.each(response, function(index, provider) {
-            var html = ProvidersHelper.prototype.getFilterHtml(provider);
-            $('#filter-providers .results').append(html);
-        });
-        $('#filter-providers .results').jScrollPane({ mouseWheelSpeed: 70 });
+        try {
+            // Validate required fields.
+            var missingRequired = false;
+            $('#providers .required').each(function() {
+                if ($(this).val() == '' || $(this).val() == undefined) {
+                    $(this).css('border', '2px solid red');
+                    missingRequired = true;
+                }
+            });
+            if (missingRequired) {
+                throw EALang['fields_are_required'];
+            }
 
-        if (response.length == 0) {
-            $('#filter-providers .results').html('<em>' + EALang['no_records_found'] + '</em>')
-        }
+            // Validate passwords.
+            if ($('#provider-password').val() != $('#provider-password-confirm').val()) {
+                $('#provider-password, #provider-password-confirm').css('border', '2px solid red');
+                throw EALang['passwords_mismatch'];
+            }
 
-        if (selectId != undefined) {
-            BackendUsers.helper.select(selectId, display);
-        }
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
+            if ($('#provider-password').val().length < BackendUsers.MIN_PASSWORD_LENGTH
+                    && $('#provider-password').val() != '') {
+                $('#provider-password, #provider-password-confirm').css('border', '2px solid red');
+                throw EALang['password_length_notice'].replace('$number', BackendUsers.MIN_PASSWORD_LENGTH);
+            }
 
-/**
- * Get an provider row html code that is going to be displayed on the filter results list.
- *
- * @param {object} provider Contains the provider record data.
- * @returns {string} The html code that represents the record on the filter results list.
- */
-ProvidersHelper.prototype.getFilterHtml = function(provider) {
-    var name = provider.first_name + ' ' + provider.last_name;
-    var info = provider.email;
-    info = (provider.mobile_number != '' && provider.mobile_number != null)
-            ? info + ', ' + provider.mobile_number : info;
-    info = (provider.phone_number != '' && provider.phone_number != null)
-            ? info + ', ' + provider.phone_number : info;
+            // Validate user email.
+            if (!GeneralFunctions.validateEmail($('#provider-email').val())) {
+                $('#provider-email').css('border', '2px solid red');
+                throw EALang['invalid_email'];
+            }
 
-    var html =
-            '<div class="provider-row" data-id="' + provider.id + '">' +
-                '<strong>' + name + '</strong><br>' +
-                info + '<br>' +
-            '</div><hr>';
+            // Check if username exists
+            if ($('#provider-username').attr('already-exists') ==  'true') {
+                $('#provider-username').css('border', '2px solid red');
+                throw EALang['username_already_exists'];
+            }
 
-    return html;
-};
-
-/**
- * Initialize the editable functionality to the break day table cells.
- *
- * @param {object} $selector The cells to be initialized.
- */
-ProvidersHelper.prototype.editableBreakDay = function($selector) {
-    var weekDays = {};
-    weekDays[EALang['monday']] = 'Monday';
-    weekDays[EALang['tuesday']] = 'Tuesday';
-    weekDays[EALang['wednesday']] = 'Wednesday';
-    weekDays[EALang['thursday']] = 'Thursday';
-    weekDays[EALang['friday']] = 'Friday';
-    weekDays[EALang['saturday']] = 'Saturday';
-    weekDays[EALang['sunday']] = 'Sunday';
-
-
-    $selector.editable(function(value, settings) {
-        return value;
-    }, {
-        'type': 'select',
-        // 'data': '{ "Monday": "Monday", "Tuesday": "Tuesday", "Wednesday": "Wednesday", '
-        //         + '"Thursday": "Thursday", "Friday": "Friday", "Saturday": "Saturday", '
-        //         + '"Sunday": "Sunday", "selected": "Monday"}',
-        'data': weekDays,
-        'event': 'edit',
-        'height': '30px',
-        'submit': '<button type="button" class="hidden submit-editable">Submit</button>',
-        'cancel': '<button type="button" class="hidden cancel-editable">Cancel</button>',
-        'onblur': 'ignore',
-        'onreset': function(settings, td) {
-            if (!BackendUsers.enableCancel) return false; // disable ESC button
-        },
-        'onsubmit': function(settings, td) {
-            if (!BackendUsers.enableSubmit) return false; // disable Enter button
-        }
-    });
-};
-
-/**
- * Initialize the editable functionality to the break time table cells.
- *
- * @param {object} $selector The cells to be initialized.
- */
-ProvidersHelper.prototype.editableBreakTime = function($selector) {
-    $selector.editable(function(value, settings) {
-        // Do not return the value because the user needs to press the "Save" button.
-        return value;
-    }, {
-        'event': 'edit',
-        'height': '25px',
-        'submit': '<button type="button" class="hidden submit-editable">Submit</button>',
-        'cancel': '<button type="button" class="hidden cancel-editable">Cancel</button>',
-        'onblur': 'ignore',
-        'onreset': function(settings, td) {
-            if (!BackendUsers.enableCancel) return false; // disable ESC button
-        },
-        'onsubmit': function(settings, td) {
-            if (!BackendUsers.enableSubmit) return false; // disable Enter button
-        }
-    });
-};
-
-/**
- * Select and display a providers filter result on the form.
- *
- * @param {numeric} id Record id to be selected.
- * @param {bool} display (OPTIONAL = false) If true the record will be displayed on the form.
- */
-ProvidersHelper.prototype.select = function(id, display) {
-    if (display == undefined) display = false;
-
-    // Select record in filter results.
-    $('#filter-providers .provider-row').each(function() {
-        if ($(this).attr('data-id') == id) {
-            $(this).addClass('selected-row');
+            return true;
+        } catch(exc) {
+            $('#providers .form-message').text(exc);
+            $('#providers .form-message').show();
             return false;
         }
-    });
+    };
 
-    // Display record in form (if display = true).
-    if (display) {
-        $.each(BackendUsers.helper.filterResults, function(index, provider) {
-            if (provider.id == id) {
-                BackendUsers.helper.display(provider);
-                $('#edit-provider, #delete-provider').prop('disabled', false);
+    /**
+     * Resets the admin tab form back to its initial state.
+     */
+    ProvidersHelper.prototype.resetForm = function() {
+        $('#filter-providers .selected-row').removeClass('selected-row');
+        $('#filter-providers button').prop('disabled', false);
+        $('#filter-providers .results').css('color', '');
+
+        $('#providers .add-edit-delete-group').show();
+        $('#providers .save-cancel-group').hide();
+        $('#providers .details').find('input, textarea').prop('readonly', true);
+        $('#providers .form-message').hide();
+        $('#provider-notifications').removeClass('active');
+        $('#provider-notifications').prop('disabled', true);
+        $('#provider-services input[type="checkbox"]').prop('disabled', true);
+        $('#providers .required').css('border', '');
+        $('#provider-password, #provider-password-confirm').css('border', '');
+        $('#providers .add-break, #reset-working-plan').prop('disabled', true);
+        BackendUsers.wp.timepickers(true);
+        $('#providers .working-plan input[type="text"]').timepicker('destroy');
+        $('#providers .working-plan input[type="checkbox"]').prop('disabled', true);
+        $('.breaks').find('.edit-break, .delete-break').prop('disabled', true);
+
+        $('#edit-provider, #delete-provider').prop('disabled', true);
+        $('#providers .details').find('input, textarea').val('');
+        $('#providers input[type="checkbox"]').prop('checked', false);
+        $('#provider-services input[type="checkbox"]').prop('checked', false);
+        $('#providers .breaks tbody').empty();
+    };
+
+    /**
+     * Display a provider record into the admin form.
+     *
+     * @param {object} provider Contains the provider record data.
+     */
+    ProvidersHelper.prototype.display = function(provider) {
+        $('#provider-id').val(provider.id);
+        $('#provider-first-name').val(provider.first_name);
+        $('#provider-last-name').val(provider.last_name);
+        $('#provider-email').val(provider.email);
+        $('#provider-mobile-number').val(provider.mobile_number);
+        $('#provider-phone-number').val(provider.phone_number);
+        $('#provider-address').val(provider.address);
+        $('#provider-city').val(provider.city);
+        $('#provider-state').val(provider.state);
+        $('#provider-zip-code').val(provider.zip_code);
+        $('#provider-notes').val(provider.notes);
+
+        $('#provider-username').val(provider.settings.username);
+        if (provider.settings.notifications == true) {
+            $('#provider-notifications').addClass('active');
+        } else {
+            $('#provider-notifications').removeClass('active');
+        }
+
+        $('#provider-services input[type="checkbox"]').prop('checked', false);
+        $.each(provider.services, function(index, serviceId) {
+            $('#provider-services input[type="checkbox"]').each(function() {
+                if ($(this).attr('data-id') == serviceId) {
+                    $(this).prop('checked', true);
+                }
+            });
+        });
+
+        // Display working plan
+        $('#providers .breaks tbody').empty();
+        var workingPlan = $.parseJSON(provider.settings.working_plan);
+        BackendUsers.wp.setup(workingPlan);
+        $('.breaks').find('.edit-break, .delete-break').prop('disabled', true);
+    };
+
+    /**
+     * Filters provider records depending a string key.
+     *
+     * @param {string} key This is used to filter the provider records of the database.
+     * @param {numeric} selectId (OPTIONAL = undefined) If set, when the function is complete
+     * a result row can be set as selected.
+     * @param {bool} display (OPTIONAL = false) If true then the selected record will be also
+     * displayed.
+     */
+    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
+            };
+
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+
+            this.filterResults = response;
+
+            $('#filter-providers .results').data('jsp').destroy;
+            $('#filter-providers .results').html('');
+            $.each(response, function(index, provider) {
+                var html = this.getFilterHtml(provider);
+                $('#filter-providers .results').append(html);
+            }.bind(this));
+            $('#filter-providers .results').jScrollPane({ mouseWheelSpeed: 70 });
+
+            if (response.length == 0) {
+                $('#filter-providers .results').html('<em>' + EALang['no_records_found'] + '</em>')
+            }
+
+            if (selectId != undefined) {
+                this.select(selectId, display);
+            }
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
+
+    /**
+     * Get an provider row html code that is going to be displayed on the filter results list.
+     *
+     * @param {object} provider Contains the provider record data.
+     * @returns {string} The html code that represents the record on the filter results list.
+     */
+    ProvidersHelper.prototype.getFilterHtml = function(provider) {
+        var name = provider.first_name + ' ' + provider.last_name,
+        info = provider.email;
+
+        info = (provider.mobile_number != '' && provider.mobile_number != null)
+                ? info + ', ' + provider.mobile_number : info;
+
+        info = (provider.phone_number != '' && provider.phone_number != null)
+                ? info + ', ' + provider.phone_number : info;
+
+        var html =
+                '<div class="provider-row" data-id="' + provider.id + '">' +
+                    '<strong>' + name + '</strong><br>' +
+                    info + '<br>' +
+                '</div><hr>';
+
+        return html;
+    };
+
+    /**
+     * Initialize the editable functionality to the break day table cells.
+     *
+     * @param {object} $selector The cells to be initialized.
+     */
+    ProvidersHelper.prototype.editableBreakDay = function($selector) {
+        var weekDays = {};
+        weekDays[EALang['monday']] = 'Monday';
+        weekDays[EALang['tuesday']] = 'Tuesday';
+        weekDays[EALang['wednesday']] = 'Wednesday';
+        weekDays[EALang['thursday']] = 'Thursday';
+        weekDays[EALang['friday']] = 'Friday';
+        weekDays[EALang['saturday']] = 'Saturday';
+        weekDays[EALang['sunday']] = 'Sunday';
+
+
+        $selector.editable(function(value, settings) {
+            return value;
+        }, {
+            type: 'select',
+            data: weekDays,
+            event: 'edit',
+            height: '30px',
+            submit: '<button type="button" class="hidden submit-editable">Submit</button>',
+            cancel: '<button type="button" class="hidden cancel-editable">Cancel</button>',
+            onblur: 'ignore',
+            onreset: function(settings, td) {
+                if (!BackendUsers.enableCancel) {
+                    return false; // disable ESC button
+                }
+            },
+            onsubmit: function(settings, td) {
+                if (!BackendUsers.enableSubmit) {
+                    return false; // disable Enter button
+                }
+            }
+        });
+    };
+
+    /**
+     * Initialize the editable functionality to the break time table cells.
+     *
+     * @param {object} $selector The cells to be initialized.
+     */
+    ProvidersHelper.prototype.editableBreakTime = function($selector) {
+        $selector.editable(function(value, settings) {
+            // Do not return the value because the user needs to press the "Save" button.
+            return value;
+        }, {
+            event: 'edit',
+            height: '25px',
+            submit: '<button type="button" class="hidden submit-editable">Submit</button>',
+            cancel: '<button type="button" class="hidden cancel-editable">Cancel</button>',
+            onblur: 'ignore',
+            onreset: function(settings, td) {
+                if (!BackendUsers.enableCancel) {
+                    return false; // disable ESC button
+                }
+            },
+            onsubmit: function(settings, td) {
+                if (!BackendUsers.enableSubmit) {
+                    return false; // disable Enter button
+                }
+            }
+        });
+    };
+
+    /**
+     * Select and display a providers filter result on the form.
+     *
+     * @param {numeric} id Record id to be selected.
+     * @param {bool} display (OPTIONAL = false) If true the record will be displayed on the form.
+     */
+    ProvidersHelper.prototype.select = function(id, display) {
+        display = display || false;
+
+        // Select record in filter results.
+        $('#filter-providers .provider-row').each(function() {
+            if ($(this).attr('data-id') == id) {
+                $(this).addClass('selected-row');
                 return false;
             }
         });
-    }
-};
+
+        // Display record in form (if display = true).
+        if (display) {
+            $.each(this.filterResults, function(index, provider) {
+                if (provider.id == id) {
+                    this.display(provider);
+                    $('#edit-provider, #delete-provider').prop('disabled', false);
+                    return false;
+                }
+            }.bind(this));
+        }
+    };
+
+    window.ProvidersHelper = ProvidersHelper;
+
+})();
diff --git a/src/assets/js/backend_users_secretaries.js b/src/assets/js/backend_users_secretaries.js
index 076af921..6f9fccee 100644
--- a/src/assets/js/backend_users_secretaries.js
+++ b/src/assets/js/backend_users_secretaries.js
@@ -9,422 +9,442 @@
  * @since       v1.0.0
  * ---------------------------------------------------------------------------- */
 
-/**
- * This class contains the Secretaries helper class declaration, along with the "Secretaries"
- * tab event handlers. By deviding the backend/users tab functionality into separate files
- * it is easier to maintain the code.
- *
- * @class SecretariesHelper
- */
-var SecretariesHelper = function() {
-    this.filterResults = {}; // Store the results for later use.
-};
+(function() {
+
+    'use strict';
 
-/**
- * Bind the event handlers for the backend/users "Secretaries" tab.
- */
-SecretariesHelper.prototype.bindEventHandlers = function() {
     /**
-     * Event: Filter Secretaries Form "Submit"
+     * Secretaries Helper
      *
-     * Filter the secretary records with the given key string.
-     */
-    $('#filter-secretaries form').submit(function(event) {
-        var key = $('#filter-secretaries .key').val();
-        $('#filter-secretaries .selected-row').removeClass('selected-row');
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter(key);
-        return false;
-    });
-
-    /**
-     * Event: Clear Filter Results Button "Click"
-     */
-    $('#filter-secretaries .clear').click(function() {
-        BackendUsers.helper.filter('');
-        $('#filter-secretaries .key').val('');
-        BackendUsers.helper.resetForm();
-    });
-
-    /**
-     * Event: Filter Secretary Row "Click"
+     * This class contains the Secretaries helper class declaration, along with the "Secretaries"
+     * tab event handlers. By deviding the backend/users tab functionality into separate files
+     * it is easier to maintain the code.
      *
-     * Display the selected secretary data to the user.
+     * @class SecretariesHelper
      */
-    $(document).on('click', '.secretary-row', function() {
-        if ($('#filter-secretaries .filter').prop('disabled')) {
-            $('#filter-secretaries .results').css('color', '#AAA');
-            return; // exit because we are currently on edit mode
-        }
-
-        var secretaryId = $(this).attr('data-id');
-        var secretary = {};
-        $.each(BackendUsers.helper.filterResults, function(index, item) {
-            if (item.id === secretaryId) {
-                secretary = item;
-                return false;
-            }
-        });
-
-        BackendUsers.helper.display(secretary);
-        $('#filter-secretaries .selected-row').removeClass('selected-row');
-        $(this).addClass('selected-row');
-        $('#edit-secretary, #delete-secretary').prop('disabled', false);
-    });
-
-    /**
-     * Event: Add New Secretary Button "Click"
-     */
-    $('#add-secretary').click(function() {
-        BackendUsers.helper.resetForm();
-        $('#filter-secretaries button').prop('disabled', true);
-        $('#filter-secretaries .results').css('color', '#AAA');
-
-        $('#secretaries .add-edit-delete-group').hide();
-        $('#secretaries .save-cancel-group').show();
-        $('#secretaries .details').find('input, textarea').prop('readonly', false);
-        $('#secretary-password, #secretary-password-confirm').addClass('required');
-        $('#secretary-notifications').prop('disabled', false);
-        $('#secretary-providers input[type="checkbox"]').prop('disabled', false);
-    });
-
-    /**
-     * Event: Edit Secretary Button "Click"
-     */
-    $('#edit-secretary').click(function() {
-        $('#filter-secretaries button').prop('disabled', true);
-        $('#filter-secretaries .results').css('color', '#AAA');
-
-        $('#secretaries .add-edit-delete-group').hide();
-        $('#secretaries .save-cancel-group').show();
-        $('#secretaries .details').find('input, textarea').prop('readonly', false);
-        $('#secretary-password, #secretary-password-confirm').removeClass('required');
-        $('#secretary-notifications').prop('disabled', false);
-        $('#secretary-providers input[type="checkbox"]').prop('disabled', false);
-    });
-
-    /**
-     * Event: Delete Secretary Button "Click"
-     */
-    $('#delete-secretary').click(function() {
-        var secretaryId = $('#secretary-id').val();
-
-        var messageBtns = {};
-        messageBtns[EALang['delete']] = function() {
-            BackendUsers.helper.delete(secretaryId);
-            $('#message_box').dialog('close');
-        };
-        messageBtns[EALang['cancel']] = function() {
-            $('#message_box').dialog('close');
-        };
-
-        GeneralFunctions.displayMessageBox(EALang['delete_secretary'],
-                EALang['delete_record_prompt'], messageBtns);
-    });
-
-    /**
-     * Event: Save Secretary Button "Click"
-     */
-    $('#save-secretary').click(function() {
-        var secretary = {
-            'first_name': $('#secretary-first-name').val(),
-            'last_name': $('#secretary-last-name').val(),
-            'email': $('#secretary-email').val(),
-            'mobile_number': $('#secretary-mobile-number').val(),
-            'phone_number': $('#secretary-phone-number').val(),
-            'address': $('#secretary-address').val(),
-            'city': $('#secretary-city').val(),
-            'state': $('#secretary-state').val(),
-            'zip_code': $('#secretary-zip-code').val(),
-            'notes': $('#secretary-notes').val(),
-            'settings': {
-                'username': $('#secretary-username').val(),
-                'notifications': $('#secretary-notifications').hasClass('active')
-            }
-        };
-
-        // Include secretary services.
-        secretary.providers = [];
-        $('#secretary-providers input[type="checkbox"]').each(function() {
-            if ($(this).prop('checked')) {
-                secretary.providers.push($(this).attr('data-id'));
-            }
-        });
-
-        // Include password if changed.
-        if ($('#secretary-password').val() !== '') {
-            secretary.settings.password = $('#secretary-password').val();
-        }
-
-        // Include id if changed.
-        if ($('#secretary-id').val() !== '') {
-            secretary.id = $('#secretary-id').val();
-        }
-
-        if (!BackendUsers.helper.validate(secretary)) return;
-
-        BackendUsers.helper.save(secretary);
-    });
-
-    /**
-     * Event: Cancel Secretary Button "Click"
-     *
-     * Cancel add or edit of an secretary record.
-     */
-    $('#cancel-secretary').click(function() {
-        var id = $('#secretary-id').val();
-        BackendUsers.helper.resetForm();
-        if (id != '') {
-            BackendUsers.helper.select(id, true);
-        }
-    });
-};
-
-/**
- * Save secretary record to database.
- *
- * @param {object} secretary Contains the admin record data. If an 'id' value is provided
- * 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)
-        };
-
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
-        Backend.displayNotification(EALang['secretary_saved']);
-        BackendUsers.helper.resetForm();
-        $('#filter-secretaries .key').val('');
-        BackendUsers.helper.filter('', response.id, true);
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
-
-/**
- * Delete a secretary record from database.
- *
- * @param {int} 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
-        };
-
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
-        Backend.displayNotification(EALang['secretary_deleted']);
-        BackendUsers.helper.resetForm();
-        BackendUsers.helper.filter($('#filter-secretaries .key').val());
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
-
-/**
- * Validates a secretary record.
- *
- * @param {object} secretary Contains the admin data to be validated.
- * @returns {bool} Returns the validation result.
- */
-SecretariesHelper.prototype.validate = function(secretary) {
-    $('#secretaries .required').css('border', '');
-    $('#secretary-password, #secretary-password-confirm').css('border', '');
-
-    try {
-        // Validate required fields.
-        var missingRequired = false;
-        $('#secretaries .required').each(function() {
-            if ($(this).val() == '' || $(this).val() == undefined) {
-                $(this).css('border', '2px solid red');
-                missingRequired = true;
-            }
-        });
-        if (missingRequired) {
-            throw 'Fields with * are  required.';
-        }
-
-        // Validate passwords.
-        if ($('#secretary-password').val() != $('#secretary-password-confirm').val()) {
-            $('#secretary-password, #secretary-password-confirm').css('border', '2px solid red');
-            throw 'Passwords mismatch!';
-        }
-
-        if ($('#secretary-password').val().length < BackendUsers.MIN_PASSWORD_LENGTH
-                && $('#secretary-password').val() != '') {
-            $('#secretary-password, #secretary-password-confirm').css('border', '2px solid red');
-            throw 'Password must be at least ' + BackendUsers.MIN_PASSWORD_LENGTH
-                    + ' characters long.';
-        }
-
-        // Validate user email.
-        if (!GeneralFunctions.validateEmail($('#secretary-email').val())) {
-            $('#secretary-email').css('border', '2px solid red');
-            throw 'Invalid email address!';
-        }
-
-        // Check if username exists
-        if ($('#secretary-username').attr('already-exists') ==  'true') {
-            $('#secretary-username').css('border', '2px solid red');
-            throw 'Username already exists.';
-        }
-
-        return true;
-    } catch(exc) {
-        $('#secretaries .form-message').text(exc);
-        $('#secretaries .form-message').show();
-        return false;
-    }
-};
-
-/**
- * Resets the admin tab form back to its initial state.
- */
-SecretariesHelper.prototype.resetForm = function() {
-    $('#secretaries .details').find('input, textarea').val('');
-    $('#secretaries .add-edit-delete-group').show();
-    $('#secretaries .save-cancel-group').hide();
-    $('#edit-secretary, #delete-secretary').prop('disabled', true);
-    $('#secretaries .details').find('input, textarea').prop('readonly', true);
-    $('#secretaries .form-message').hide();
-    $('#secretary-notifications').removeClass('active');
-    $('#secretary-notifications').prop('disabled', true);
-    $('#secretary-providers input[type="checkbox"]').prop('checked', false);
-    $('#secretary-providers input[type="checkbox"]').prop('disabled', true);
-    $('#secretaries .required').css('border', '');
-    $('#secretary-password, #secretary-password-confirm').css('border', '');
-
-    $('#filter-secretaries .selected-row').removeClass('selected-row');
-    $('#filter-secretaries button').prop('disabled', false);
-    $('#filter-secretaries .results').css('color', '');
-};
-
-/**
- * Display a secretary record into the admin form.
- *
- * @param {object} secretary Contains the secretary record data.
- */
-SecretariesHelper.prototype.display = function(secretary) {
-    $('#secretary-id').val(secretary.id);
-    $('#secretary-first-name').val(secretary.first_name);
-    $('#secretary-last-name').val(secretary.last_name);
-    $('#secretary-email').val(secretary.email);
-    $('#secretary-mobile-number').val(secretary.mobile_number);
-    $('#secretary-phone-number').val(secretary.phone_number);
-    $('#secretary-address').val(secretary.address);
-    $('#secretary-city').val(secretary.city);
-    $('#secretary-state').val(secretary.state);
-    $('#secretary-zip-code').val(secretary.zip_code);
-    $('#secretary-notes').val(secretary.notes);
-
-    $('#secretary-username').val(secretary.settings.username);
-    if (secretary.settings.notifications == true) {
-        $('#secretary-notifications').addClass('active');
-    } else {
-        $('#secretary-notifications').removeClass('active');
-    }
-
-    $('#secretary-providers input[type="checkbox"]').prop('checked', false);
-    $.each(secretary.providers, function(index, providerId) {
-        $('#secretary-providers input[type="checkbox"]').each(function() {
-            if ($(this).attr('data-id') == providerId) {
-                $(this).prop('checked', true);
-            }
-        });
-    });
-};
-
-/**
- * Filters secretary records depending a string key.
- *
- * @param {string} key This is used to filter the secretary records of the database.
- * @param {numeric} selectId (OPTIONAL = undefined) If provided then the given id will be
- * selected in the filter results (only selected, not displayed).
- * @param {bool} display (OPTIONAL = false)
- */
-SecretariesHelper.prototype.filter = function(key, selectId, display) {
-    if (display == undefined) display = false;
-
-    var postUrl = GlobalVariables.baseUrl + '/index.php/backend_api/ajax_filter_secretaries';
-    var postData = {
-        'csrfToken': GlobalVariables.csrfToken,
-        'key': key
+    var SecretariesHelper = function() {
+        this.filterResults = {}; // Store the results for later use.
     };
 
-    $.post(postUrl, postData, function(response) {
-        if (!GeneralFunctions.handleAjaxExceptions(response)) return;
+    /**
+     * Bind the event handlers for the backend/users "Secretaries" tab.
+     */
+    SecretariesHelper.prototype.bindEventHandlers = function() {
+        /**
+         * Event: Filter Secretaries Form "Submit"
+         *
+         * Filter the secretary records with the given key string.
+         */
+        $('#secretaries').on('submit', '#filter-secretaries form', function(event) {
+            var key = $('#filter-secretaries .key').val();
+            $('#filter-secretaries .selected-row').removeClass('selected-row');
+            this.resetForm();
+            this.filter(key);
+            return false;
+        }.bind(this));
 
-        BackendUsers.helper.filterResults = response;
+        /**
+         * Event: Clear Filter Results Button "Click"
+         */
+        $('#secretaries').on('click', '#filter-secretaries .clear', function() {
+            this.filter('');
+            $('#filter-secretaries .key').val('');
+            this.resetForm();
+        }.bind(this));
 
-        $('#filter-secretaries .results').data('jsp').destroy();
-        $('#filter-secretaries .results').html('');
-        $.each(response, function(index, secretary) {
-            var html = SecretariesHelper.prototype.getFilterHtml(secretary);
-            $('#filter-secretaries .results').append(html);
+        /**
+         * Event: Filter Secretary Row "Click"
+         *
+         * Display the selected secretary data to the user.
+         */
+        $('#secretaries').on('click', '.secretary-row', function(e) {
+            if ($('#filter-secretaries .filter').prop('disabled')) {
+                $('#filter-secretaries .results').css('color', '#AAA');
+                return; // exit because we are currently on edit mode
+            }
+
+            var secretaryId = $(e.currentTarget).attr('data-id'),
+                secretary = {};
+            $.each(this.filterResults, function(index, item) {
+                if (item.id === secretaryId) {
+                    secretary = item;
+                    return false;
+                }
+            });
+
+            this.display(secretary);
+            $('#filter-secretaries .selected-row').removeClass('selected-row');
+            $(e.currentTarget).addClass('selected-row');
+            $('#edit-secretary, #delete-secretary').prop('disabled', false);
+        }.bind(this));
+
+        /**
+         * Event: Add New Secretary Button "Click"
+         */
+        $('#secretaries').on('click', '#add-secretary', function() {
+            this.resetForm();
+            $('#filter-secretaries button').prop('disabled', true);
+            $('#filter-secretaries .results').css('color', '#AAA');
+
+            $('#secretaries .add-edit-delete-group').hide();
+            $('#secretaries .save-cancel-group').show();
+            $('#secretaries .details').find('input, textarea').prop('readonly', false);
+            $('#secretary-password, #secretary-password-confirm').addClass('required');
+            $('#secretary-notifications').prop('disabled', false);
+            $('#secretary-providers input[type="checkbox"]').prop('disabled', false);
+        }.bind(this));
+
+        /**
+         * Event: Edit Secretary Button "Click"
+         */
+        $('#secretaries').on('click', '#edit-secretary', function() {
+            $('#filter-secretaries button').prop('disabled', true);
+            $('#filter-secretaries .results').css('color', '#AAA');
+
+            $('#secretaries .add-edit-delete-group').hide();
+            $('#secretaries .save-cancel-group').show();
+            $('#secretaries .details').find('input, textarea').prop('readonly', false);
+            $('#secretary-password, #secretary-password-confirm').removeClass('required');
+            $('#secretary-notifications').prop('disabled', false);
+            $('#secretary-providers input[type="checkbox"]').prop('disabled', false);
         });
-        $('#filter-secretaries .results').jScrollPane({ mouseWheelSpeed: 70 });
 
-        if (response.length == 0) {
-            $('#filter-secretaries .results').html('<em>' + EALang['no_records_found'] + '</em>')
-        }
+        /**
+         * Event: Delete Secretary Button "Click"
+         */
+        $('#secretaries').on('click', '#delete-secretary', function() {
+            var secretaryId = $('#secretary-id').val();
 
-        if (selectId != undefined) {
-            BackendUsers.helper.select(selectId, display);
-        }
-    }, 'json').fail(GeneralFunctions.ajaxFailureHandler);
-};
+            var messageBtns = {};
+            messageBtns[EALang['delete']] = function() {
+                this.delete(secretaryId);
+                $('#message_box').dialog('close');
+            }.bind(this);
+            messageBtns[EALang['cancel']] = function() {
+                $('#message_box').dialog('close');
+            };
 
-/**
- * Get an secretary row html code that is going to be displayed on the filter results list.
- *
- * @param {object} secretary Contains the secretary record data.
- * @returns {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;
-    var info = secretary.email;
-    info = (secretary.mobile_number != '' && secretary.mobile_number != null)
-            ? info + ', ' + secretary.mobile_number : info;
-    info = (secretary.phone_number != '' && secretary.phone_number != null)
-            ? info + ', ' + secretary.phone_number : info;
+            GeneralFunctions.displayMessageBox(EALang['delete_secretary'],
+                    EALang['delete_record_prompt'], messageBtns);
+        });
 
-    var html =
-            '<div class="secretary-row" data-id="' + secretary.id + '">' +
-                '<strong>' + name + '</strong><br>' +
-                info + '<br>' +
-            '</div><hr>';
+        /**
+         * Event: Save Secretary Button "Click"
+         */
+        $('#secretaries').on('click', '#save-secretary', function() {
+            var secretary = {
+                first_name: $('#secretary-first-name').val(),
+                last_name: $('#secretary-last-name').val(),
+                email: $('#secretary-email').val(),
+                mobile_number: $('#secretary-mobile-number').val(),
+                phone_number: $('#secretary-phone-number').val(),
+                address: $('#secretary-address').val(),
+                city: $('#secretary-city').val(),
+                state: $('#secretary-state').val(),
+                zip_code: $('#secretary-zip-code').val(),
+                notes: $('#secretary-notes').val(),
+                settings: {
+                    username: $('#secretary-username').val(),
+                    notifications: $('#secretary-notifications').hasClass('active')
+                }
+            };
 
-    return html;
-};
+            // Include secretary services.
+            secretary.providers = [];
+            $('#secretary-providers input[type="checkbox"]').each(function() {
+                if ($(this).prop('checked')) {
+                    secretary.providers.push($(this).attr('data-id'));
+                }
+            });
 
-/**
- * Select a specific record from the current filter results. If the secretary id does not exist
- * in the list then no record will be selected.
- *
- * @param {numeric} id The record id to be selected from the filter results.
- * @param {bool} display (OPTIONAL = false) If true then the method will display the record
- * on the form.
- */
-SecretariesHelper.prototype.select = function(id, display) {
-    if (display == undefined) display = false;
+            // Include password if changed.
+            if ($('#secretary-password').val() !== '') {
+                secretary.settings.password = $('#secretary-password').val();
+            }
 
-    $('#filter-secretaries .selected-row').removeClass('selected-row');
+            // Include id if changed.
+            if ($('#secretary-id').val() !== '') {
+                secretary.id = $('#secretary-id').val();
+            }
 
-    $('#filter-secretaries .secretary-row').each(function() {
-        if ($(this).attr('data-id') == id) {
-            $(this).addClass('selected-row');
+            if (!this.validate(secretary)) {
+                return;
+            }
+
+            this.save(secretary);
+        }.bind(this));
+
+        /**
+         * Event: Cancel Secretary Button "Click"
+         *
+         * Cancel add or edit of an secretary record.
+         */
+        $('#secretaries').on('Click', '#cancel-secretary', function() {
+            var id = $('#secretary-id').val();
+            this.resetForm();
+            if (id != '') {
+                this.select(id, true);
+            }
+        }.bind(this));
+    };
+
+    /**
+     * Save secretary record to database.
+     *
+     * @param {object} secretary Contains the admin record data. If an 'id' value is provided
+     * 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)
+            };
+
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+            Backend.displayNotification(EALang['secretary_saved']);
+            this.resetForm();
+            $('#filter-secretaries .key').val('');
+            this.filter('', response.id, true);
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
+
+    /**
+     * Delete a secretary record from database.
+     *
+     * @param {int} 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
+            };
+
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+            Backend.displayNotification(EALang['secretary_deleted']);
+            this.resetForm();
+            this.filter($('#filter-secretaries .key').val());
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
+
+    /**
+     * Validates a secretary record.
+     *
+     * @param {object} secretary Contains the admin data to be validated.
+     * @returns {bool} Returns the validation result.
+     */
+    SecretariesHelper.prototype.validate = function(secretary) {
+        $('#secretaries .required').css('border', '');
+        $('#secretary-password, #secretary-password-confirm').css('border', '');
+
+        try {
+            // Validate required fields.
+            var missingRequired = false;
+            $('#secretaries .required').each(function() {
+                if ($(this).val() == '' || $(this).val() == undefined) {
+                    $(this).css('border', '2px solid red');
+                    missingRequired = true;
+                }
+            });
+            if (missingRequired) {
+                throw 'Fields with * are  required.';
+            }
+
+            // Validate passwords.
+            if ($('#secretary-password').val() != $('#secretary-password-confirm').val()) {
+                $('#secretary-password, #secretary-password-confirm').css('border', '2px solid red');
+                throw 'Passwords mismatch!';
+            }
+
+            if ($('#secretary-password').val().length < BackendUsers.MIN_PASSWORD_LENGTH
+                    && $('#secretary-password').val() != '') {
+                $('#secretary-password, #secretary-password-confirm').css('border', '2px solid red');
+                throw 'Password must be at least ' + BackendUsers.MIN_PASSWORD_LENGTH
+                        + ' characters long.';
+            }
+
+            // Validate user email.
+            if (!GeneralFunctions.validateEmail($('#secretary-email').val())) {
+                $('#secretary-email').css('border', '2px solid red');
+                throw 'Invalid email address!';
+            }
+
+            // Check if username exists
+            if ($('#secretary-username').attr('already-exists') ==  'true') {
+                $('#secretary-username').css('border', '2px solid red');
+                throw 'Username already exists.';
+            }
+
+            return true;
+        } catch(exc) {
+            $('#secretaries .form-message').text(exc);
+            $('#secretaries .form-message').show();
             return false;
         }
-    });
+    };
 
-    if (display) {
-        $.each(BackendUsers.helper.filterResults, function(index, admin) {
-            if (admin.id == id) {
-                BackendUsers.helper.display(admin);
-                $('#edit-secretary, #delete-secretary').prop('disabled', false);
+    /**
+     * Resets the admin tab form back to its initial state.
+     */
+    SecretariesHelper.prototype.resetForm = function() {
+        $('#secretaries .details').find('input, textarea').val('');
+        $('#secretaries .add-edit-delete-group').show();
+        $('#secretaries .save-cancel-group').hide();
+        $('#edit-secretary, #delete-secretary').prop('disabled', true);
+        $('#secretaries .details').find('input, textarea').prop('readonly', true);
+        $('#secretaries .form-message').hide();
+        $('#secretary-notifications').removeClass('active');
+        $('#secretary-notifications').prop('disabled', true);
+        $('#secretary-providers input[type="checkbox"]').prop('checked', false);
+        $('#secretary-providers input[type="checkbox"]').prop('disabled', true);
+        $('#secretaries .required').css('border', '');
+        $('#secretary-password, #secretary-password-confirm').css('border', '');
+
+        $('#filter-secretaries .selected-row').removeClass('selected-row');
+        $('#filter-secretaries button').prop('disabled', false);
+        $('#filter-secretaries .results').css('color', '');
+    };
+
+    /**
+     * Display a secretary record into the admin form.
+     *
+     * @param {object} secretary Contains the secretary record data.
+     */
+    SecretariesHelper.prototype.display = function(secretary) {
+        $('#secretary-id').val(secretary.id);
+        $('#secretary-first-name').val(secretary.first_name);
+        $('#secretary-last-name').val(secretary.last_name);
+        $('#secretary-email').val(secretary.email);
+        $('#secretary-mobile-number').val(secretary.mobile_number);
+        $('#secretary-phone-number').val(secretary.phone_number);
+        $('#secretary-address').val(secretary.address);
+        $('#secretary-city').val(secretary.city);
+        $('#secretary-state').val(secretary.state);
+        $('#secretary-zip-code').val(secretary.zip_code);
+        $('#secretary-notes').val(secretary.notes);
+
+        $('#secretary-username').val(secretary.settings.username);
+        if (secretary.settings.notifications == true) {
+            $('#secretary-notifications').addClass('active');
+        } else {
+            $('#secretary-notifications').removeClass('active');
+        }
+
+        $('#secretary-providers input[type="checkbox"]').prop('checked', false);
+        $.each(secretary.providers, function(index, providerId) {
+            $('#secretary-providers input[type="checkbox"]').each(function() {
+                if ($(this).attr('data-id') == providerId) {
+                    $(this).prop('checked', true);
+                }
+            });
+        });
+    };
+
+    /**
+     * Filters secretary records depending a string key.
+     *
+     * @param {string} key This is used to filter the secretary records of the database.
+     * @param {numeric} selectId (OPTIONAL = undefined) If provided then the given id will be
+     * selected in the filter results (only selected, not displayed).
+     * @param {bool} display (OPTIONAL = false)
+     */
+    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
+            };
+
+        $.post(postUrl, postData, function(response) {
+            if (!GeneralFunctions.handleAjaxExceptions(response)) {
+                return;
+            }
+
+            this.filterResults = response;
+
+            $('#filter-secretaries .results').data('jsp').destroy();
+            $('#filter-secretaries .results').html('');
+            $.each(response, function(index, secretary) {
+                var html = this.getFilterHtml(secretary);
+                $('#filter-secretaries .results').append(html);
+            }.bind(this));
+            $('#filter-secretaries .results').jScrollPane({ mouseWheelSpeed: 70 });
+
+            if (response.length == 0) {
+                $('#filter-secretaries .results').html('<em>' + EALang['no_records_found'] + '</em>')
+            }
+
+            if (selectId != undefined) {
+                this.select(selectId, display);
+            }
+        }.bind(this), 'json').fail(GeneralFunctions.ajaxFailureHandler);
+    };
+
+    /**
+     * Get an secretary row html code that is going to be displayed on the filter results list.
+     *
+     * @param {object} secretary Contains the secretary record data.
+     * @returns {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;
+
+        info = (secretary.mobile_number != '' && secretary.mobile_number != null)
+                ? info + ', ' + secretary.mobile_number : info;
+
+        info = (secretary.phone_number != '' && secretary.phone_number != null)
+                ? info + ', ' + secretary.phone_number : info;
+
+        var html =
+                '<div class="secretary-row" data-id="' + secretary.id + '">' +
+                    '<strong>' + name + '</strong><br>' +
+                    info + '<br>' +
+                '</div><hr>';
+
+        return html;
+    };
+
+    /**
+     * Select a specific record from the current filter results. If the secretary id does not exist
+     * in the list then no record will be selected.
+     *
+     * @param {numeric} id The record id to be selected from the filter results.
+     * @param {bool} display (OPTIONAL = false) If true then the method will display the record
+     * on the form.
+     */
+    SecretariesHelper.prototype.select = function(id, display) {
+        display = display || false;
+
+        $('#filter-secretaries .selected-row').removeClass('selected-row');
+
+        $('#filter-secretaries .secretary-row').each(function() {
+            if ($(this).attr('data-id') == id) {
+                $(this).addClass('selected-row');
                 return false;
             }
         });
-    }
-};
+
+        if (display) {
+            $.each(this.filterResults, function(index, admin) {
+                if (admin.id == id) {
+                    this.display(admin);
+                    $('#edit-secretary, #delete-secretary').prop('disabled', false);
+                    return false;
+                }
+            }.bind(this));
+        }
+    };
+
+    window.SecretariesHelper = SecretariesHelper;
+
+})();