https://www.freedomdreads.co.za/wp-content/themes/beauty-salon-spa/assets/js/navigation-focus.js?ver=1

1var beauty_salon_spa_Keyboard_loop = function (elem) {
2  var beauty_salon_spa_tabbable = elem.find('select, input, textarea, button, a').filter(':visible');
3  var beauty_salon_spa_firstTabbable = beauty_salon_spa_tabbable.first();
4  var beauty_salon_spa_lastTabbable = beauty_salon_spa_tabbable.last();
5  beauty_salon_spa_firstTabbable.focus();
6
7  beauty_salon_spa_lastTabbable.on('keydown', function (e) {
8    if ((e.which === 9 && !e.shiftKey)) {
9      e.preventDefault();
10      beauty_salon_spa_firstTabbable.focus();
11    }
12  });
13
14  beauty_salon_spa_firstTabbable.on('keydown', function (e) {
15    if ((e.which === 9 && e.shiftKey)) {
16      e.preventDefault();
17      beauty_salon_spa_lastTabbable.focus();
18    }
19  });
20
21  elem.on('keyup', function (e) {
22    if (e.keyCode === 27) {
23      elem.hide();
24    };
25  });
26};