https://redingtongroup.com/wp-content/themes/redington/assets/js/customajax.js

1jQuery(function ($) {
2    $('#countries').on('change', function () {
3        var catid = $(this).val();
4        if (catid == "") {
5            $('#showRegion').hide();
6            $('#showalladdresses').show();
7        } else {
8            $('#subregion').trigger('change');
9        }
10        $.ajax({
11            url: the_ajax_script.ajaxurl,
12            dataType: "html",
13            data: {
14                category: catid,
15                action: 'getContactRegion'
16            },
17            method: 'POST',
18            success: function (data) {
19                var $data = $(data);
20                if ($data.length) {
21                    $("#subregion").html($data);
22                }
23            },
24            error: function (error) {
25                console.log(error)
26            }
27        });
28        return false;
29    });
30
31    $('#subregion').on('change', function () {
32        var catid = $('#countries').val();
33        var subcatid = $(this).val();
34        $.ajax({
35            url: the_ajax_script.ajaxurl,
36            dataType: "html",
37            data: {
38                category: catid,
39                subcategory: subcatid,
40                action: 'getContactAddresses'
41            },
42            method: 'POST',
43            success: function (data) {
44                var $data = $(data);
45                if ($data.length) {
46                    $("#showRegion").html($data);
47                    $('#showRegion').show();
48                    $('#showalladdresses').hide();
49                }
50            },
51            error: function (error) {
52                console.log(error)
53            }
54        });
55        return false;
56    });
57});