https://laserprolab.ru/static/js/new_installment2.js

1document.addEventListener('DOMContentLoaded', function () {
2  var subdomain = location.hostname.split('.')[0]
3  var selects = document.querySelectorAll('.city_location')
4
5  if (subdomain == 'msk') {
6    selects.forEach(el => el.options[1].setAttribute('selected', 'selected'));
7  }
8  else if (subdomain == 'chel') {
9    selects.forEach(el => el.options[2].setAttribute('selected', 'selected'));
10  }
11  else {
12    selects.forEach(el => el.options[0].setAttribute('selected', 'selected'));
13  }
14});
15
16if (document.getElementById("studios")) {
17    const AdressDefault = document.getElementById('studios').options[0].setAttribute('selected', 'selected');
18    
19    const FIO = document.getElementById('fio')
20    const Tel = document.getElementById('phone')
21    const Email = document.getElementById('email')
22    
23    const FormCheck = () => {
24        var button = document.getElementById('buy_btn')
25        var GetFIO = FIO.value;
26        var GetTel = Tel.value;
27        var GetEmail = Email.value;
28        if (!GetFIO || !GetTel || !GetEmail) {
29            button.setAttribute('disabled', 'disabled')
30        }
31        else {
32            button.removeAttribute('disabled')
33        }
34    }
35    
36    document.addEventListener('DOMContentLoaded', FormCheck)
37    FIO.addEventListener('change', FormCheck)
38    Tel.addEventListener('change', FormCheck)
39    Email.addEventListener('change', FormCheck)
40    document.addEventListener('htmx:afterRequest', FormCheck)
41}
42