function stDelivery() { };

stDelivery.executeAjaxUpdate = function (trigger, url, params) {
    const form = jQuery('#st_basket-delivery-form');

    if (form.length) {
        const formElements = jQuery(form.get(0).elements);

        trigger.prop('disabled', true);

        formElements.prop('disabled', true);
    }

    if (!params) {
        params = {};
    }

    params.id = trigger.val();

    jQuery(document).trigger('delivery.update.started');

    params.billing_country = jQuery('#user_data_billing_country, #billing-country').val();

    jQuery.get(url, params, function () {
        if (form.length) {
            trigger.prop('disabled', false);
            formElements.prop('disabled', false);
        }

        jQuery(document).trigger('delivery.update.finished');
    });
}