https://www.seatcupra.net/forums/js/themehouse/xpress/search.js?_v=a906d865

1!function ($, window, document, _undefined) {
2    "use strict";
3
4    $(document).ready(function () {
5        var data = $.parseJSON($('.js-XPressSearchSetup').first().html()),
6            searchForm = $('.js-quickSearch-constraint').closest('form'),
7            originalSearchUrl = searchForm.attr('action'),
8            keywordsInput = searchForm.find('input[name="keywords"]'),
9            menus = searchForm.find('.menu-row').slice(1);
10
11        $('.js-quickSearch-constraint').on('change', function ($event) {
12            var target = $($event.target),
13                value = target.val();
14
15            try {
16                var parsedValue = $.parseJSON(value);
17            }
18            catch ($e) {
19                var parsedValue = {"search_type": null}
20            }
21
22            if (parsedValue.search_type === 'thxpress') {
23                searchForm.attr('action', data.url).attr('method', 'GET');
24                keywordsInput.attr('name', 's');
25                if(menus.is(':visible')) {
26                    menus.finish().slideUp(200);
27                }
28            }
29            else {
30                searchForm.attr('action', originalSearchUrl).attr('method', 'POST');
31                keywordsInput.attr('name', 'keywords');
32                if(menus.is(':hidden')) {
33                    menus.finish().slideDown(200);
34                }
35            }
36        });
37    });
38}(jQuery, window, document);