diff --git a/pos_keyboard/data.xml b/pos_keyboard/data.xml
index 06b62e2..295b0da 100644
--- a/pos_keyboard/data.xml
+++ b/pos_keyboard/data.xml
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8" ?>
 <!--Copyright 2015 igallyamov <https://github.com/igallyamov>
     Copyright 2016 ufaks <https://github.com/ufaks>
     Copyright 2019 Kolushov Alexandr <https://it-projects.info/team/kolushovalexandr>
@@ -7,13 +7,19 @@
 
         <template id="assets" inherit_id="point_of_sale.assets">
             <xpath expr="." position="inside">
-                <script type="text/javascript" src="/pos_keyboard/static/src/js/pos.js"></script>
+                <script
+                type="text/javascript"
+                src="/pos_keyboard/static/src/js/pos.js"
+            />
             </xpath>
         </template>
 
         <template id="demo_assets_backend" inherit_id="web.assets_backend">
             <xpath expr="." position="inside">
-                <script type="text/javascript" src="/pos_keyboard/static/src/js/test_pos_keyboard.js"></script>
+                <script
+                type="text/javascript"
+                src="/pos_keyboard/static/src/js/test_pos_keyboard.js"
+            />
             </xpath>
         </template>
 
diff --git a/pos_keyboard/static/src/js/pos.js b/pos_keyboard/static/src/js/pos.js
index b7b1821..97ae038 100644
--- a/pos_keyboard/static/src/js/pos.js
+++ b/pos_keyboard/static/src/js/pos.js
@@ -3,6 +3,7 @@
     Copyright 2016 Ivan Yelizariev <https://it-projects.info/team/yelizariev>
     Copyright 2019 Kolushov Alexandr <https://it-projects.info/team/kolushovalexandr>
     Copyright 2019 ssaid <https://github.com/ssaid>
+    Copyright 2019 raulovallet <https://github.com/raulovallet>
     License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html). */
 /* eslint-disable complexity */
 odoo.define('pos_keyboard.pos', function (require) {
@@ -248,7 +249,7 @@ self.action_callback(self.data);
         // stops catching keyboard events
         disconnect: function(){
             $('body').off('keyup', '');
-            self.active = false;
+            this.active = false;
         }
     });
 
diff --git a/pos_keyboard/static/src/js/test_pos_keyboard.js b/pos_keyboard/static/src/js/test_pos_keyboard.js
index c69207e..ab48254 100644
--- a/pos_keyboard/static/src/js/test_pos_keyboard.js
+++ b/pos_keyboard/static/src/js/test_pos_keyboard.js
@@ -1,119 +1,147 @@
 /*  Copyright 2019 Kolushov Alexandr <https://it-projects.info/team/kolushovalexandr>
     Copyright 2019 Anvar Kildebekov <https://it-projects.info/team/fedoranvar>
     License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html). */
-odoo.define('pos_keyboard.tour', function (require) {
+odoo.define("pos_keyboard.tour", function(require) {
     "use strict";
 
     var tour = require("web_tour.tour");
-    var core = require('web.core');
+    var core = require("web.core");
     var _t = core._t;
 
     function open_pos_neworder() {
-        return [{
-            trigger: 'ul.o_menu_apps li.dropdown a.full',
-            content: _t("Show Apps Menu"),
-            position: 'bottom',
-        }, {
-            trigger: '.o_app[data-menu-xmlid="point_of_sale.menu_point_root"], .oe_menu_toggler[data-menu-xmlid="point_of_sale.menu_point_root"]',
-            content: _t("Ready to launch your <b>point of sale</b>? <i>Click here</i>."),
-            position: 'bottom',
-        }, {
-            trigger: ".o_pos_kanban button.oe_kanban_action_button",
-            content: _t("<p>Click to start the point of sale interface. It <b>runs on tablets</b>, laptops, or industrial hardware.</p><p>Once the session launched, the system continues to run without an internet connection.</p>"),
-            position: "bottom"
-        }, {
-            content: "Switch to table or make dummy action",
-            trigger: '.table:not(.oe_invisible .neworder-button), .order-button.selected',
-            position: "bottom",
-            timeout: 30000,
-        }, {
-            content: 'waiting for loading to finish',
-            trigger: '.order-button.neworder-button',
-        }];
+        return [
+            {
+                trigger: "ul.o_menu_apps li.dropdown a.full",
+                content: _t("Show Apps Menu"),
+                position: "bottom",
+            },
+            {
+                trigger:
+                    '.o_app[data-menu-xmlid="point_of_sale.menu_point_root"], .oe_menu_toggler[data-menu-xmlid="point_of_sale.menu_point_root"]',
+                content: _t(
+                    "Ready to launch your <b>point of sale</b>? <i>Click here</i>."
+                ),
+                position: "bottom",
+            },
+            {
+                trigger: ".o_pos_kanban button.oe_kanban_action_button",
+                content: _t(
+                    "<p>Click to start the point of sale interface. It <b>runs on tablets</b>, laptops, or industrial hardware.</p><p>Once the session launched, the system continues to run without an internet connection.</p>"
+                ),
+                position: "bottom",
+            },
+            {
+                content: "Switch to table or make dummy action",
+                trigger:
+                    ".table:not(.oe_invisible .neworder-button), .order-button.selected",
+                position: "bottom",
+                timeout: 30000,
+            },
+            {
+                content: "waiting for loading to finish",
+                trigger: ".order-button.neworder-button",
+            },
+        ];
     }
 
     function add_product_to_order(product_name) {
-        return [{
-            content: 'buy ' + product_name,
-            trigger: '.product-list .product-name:contains("' + product_name + '")',
-        }, {
-            content: 'the ' + product_name + ' have been added to the order',
-            trigger: '.order .product-name:contains("' + product_name + '")',
-        }];
+        return [
+            {
+                content: "buy " + product_name,
+                trigger: '.product-list .product-name:contains("' + product_name + '")',
+            },
+            {
+                content: "the " + product_name + " have been added to the order",
+                trigger: '.order .product-name:contains("' + product_name + '")',
+            },
+        ];
     }
 
     function simulate_keyup_event(number) {
-        var event = $.Event('keyup');
+        var event = $.Event("keyup");
         event.which = number;
         event.keyCode = number;
-        $('body').trigger(event);
+        $("body").trigger(event);
     }
 
     function update_qty_for_product(qty) {
-        return [{
-            content: "Make dummy action and update product qty",
-            trigger: '.order-button.selected',
-            run: function(){
-                simulate_keyup_event(96 + qty);
+        return [
+            {
+                content: "Make dummy action and update product qty",
+                trigger: ".order-button.selected",
+                run: function() {
+                    simulate_keyup_event(96 + qty);
+                },
             },
-        }, {
-            content: 'Check the qty',
-            trigger: '.orderline.selected .info em:contains(' + qty + ')',
-        }];
+            {
+                content: "Check the qty",
+                trigger: ".orderline.selected .info em:contains(" + qty + ")",
+            },
+        ];
     }
 
     function connect_disconnect_keyboard() {
-        var stps = [{
-            content: "Open Payment-Screen",
-            trigger: '.pay-circle',
-        }];
+        var stps = [
+            {
+                content: "Open Payment-Screen",
+                trigger: ".pay-circle",
+            },
+        ];
 
-        if (odoo._modules.indexOf('pos_cashier_select') !== -1) {
-            stps = stps.concat([{
-            trigger: '.modal-dialog.cashier .selection-item:contains("Admin")',
-            content: 'select first cashier',
-        }]);
+        if (odoo._modules.indexOf("pos_cashier_select") !== -1) {
+            stps = stps.concat([
+                {
+                    trigger: '.modal-dialog.cashier .selection-item:contains("Admin")',
+                    content: "select first cashier",
+                },
+            ]);
         }
 
-        stps = stps.concat([{
-            content: 'Close Payment-Screen',
-            trigger: '.button:contains(Back)',
-        }]);
+        stps = stps.concat([
+            {
+                content: "Close Payment-Screen",
+                trigger: ".button:contains(Back)",
+            },
+        ]);
         return stps;
     }
 
     function open_cashier_popup_and_close_it() {
-        return [{
-            content: "Open cashier selection popup",
-            trigger: '.username',
-        }, {
-            content: "Make dummy action and simulate escape button clicking",
-            trigger: '.modal-dialog:not(".oe_hidden")',
-            run: function(){
-                simulate_keyup_event(27);
-                setTimeout(function () {
-                    if ($('.modal-dialog:not(".oe_hidden")').length) {
-                        console.log('error');
-                    } else {
-                        console.log('ok');
-                    }
-                }, 50);
+        return [
+            {
+                content: "Open cashier selection popup",
+                trigger: ".username",
             },
-        }, {
-            content: "Make dummy action in order to properly pass the check for closed popups",
-            trigger: '.order-button.selected',
-        }];
+            {
+                content: "Make dummy action and simulate escape button clicking",
+                trigger: '.modal-dialog:not(".oe_hidden")',
+                run: function() {
+                    simulate_keyup_event(27);
+                    setTimeout(function() {
+                        if ($('.modal-dialog:not(".oe_hidden")').length) {
+                            console.log("error");
+                        } else {
+                            console.log("ok");
+                        }
+                    }, 50);
+                },
+            },
+            {
+                content:
+                    "Make dummy action in order to properly pass the check for closed popups",
+                trigger: ".order-button.selected",
+            },
+        ];
     }
 
     var steps = [];
     var quantity = 3;
     steps = steps.concat(open_pos_neworder());
-    steps = steps.concat(add_product_to_order('Miscellaneous'));
+    steps = steps.concat(add_product_to_order("Miscellaneous"));
     steps = steps.concat(update_qty_for_product(quantity));
     steps = steps.concat(connect_disconnect_keyboard());
-    steps = steps.concat(update_qty_for_product(quantity+1));
+    steps = steps.concat(update_qty_for_product(quantity + 1));
     steps = steps.concat(open_cashier_popup_and_close_it());
 
-    tour.register('pos_keyboard_tour', { test: true, url: '/web' }, steps);
-
+    tour.register("pos_keyboard_tour", {test: true, url: "/web"}, steps);
 });