https://www.dalfijn.nl/js/init.js?v=mUlRWEGwAPc40VZR23xbjAGaIa31QjXpKTrIb17ubFQ

1$(function () {
2    addCheckedClassToRadioOrCheckboxParent();
3    autoWidthLanguageSelect();
4});
5
6function addCheckedClassToRadioOrCheckboxParent() {
7    $('[type="radio"]:checked, [type="checkbox"]:checked').each(function () {
8        $(this).closest(".radio").addClass("checked");
9        $(this).closest(".checkbox").addClass("checked");
10    });
11
12    $(document).on("change", "[type=radio]", function () {
13        $(":radio[name='" + this.name + "']:not(:checked)").closest(".radio").removeClass('checked');
14        $(this).closest(".radio").addClass("checked");
15    });
16
17    $(document).on("change", "[type=checkbox]", function () {
18        if (this.checked) {
19            $(this).closest(".checkbox").addClass("checked");
20        }
21        else {
22            $(this).closest(".checkbox").removeClass("checked");
23        }
24    });
25}
26
27function autoWidthLanguageSelect() {
28    var text = $("#Culture").find("option:selected").text();
29    var fake = $("<select/>").append($("<option/>").text(text));
30    $("#Culture").after(fake);
31    $("#Culture").width(fake.outerWidth(true));
32    fake.remove();
33}