Наценка на доп поля Главный файл

Nacenka na dop polya
https://staff.megagroup.ru/staff/client/plan.php?object_type_id=1&object_id=2466561&plan_id=38814838#plan_id_38814838
https://redmine.oml.ru/issues/45474

Otkrepil shabloni:
 shop2.v2-white-cart-product.tpl https://pastebin.com/A3xAeVAV
 shop2.v2-cart-product.tpl https://pastebin.com/T1Qv34JV
 shop2.v2-product-options-not-mod.tpl https://pastebin.com/hKKAFFWd

JS shop2.2.js https://pastebin.com/TkwFMQwF

obekt js => shop2.margin_price
metod shop2.margin_price.price_change

viziv metodov mnogo gde DOCUMENT_READY shop2.queue.margin_price  sobitie change 'select.additional-cart-params'


shop2.margin_price = {
    price_change: function(j_this, selector_parent){

    	if( shop2.mode == 'cart' ){

	        form = $('#shop2-cart');
	        shop2.cart.update(form);

    		return;
    	}

        var
        $form = $(j_this).closest(selector_parent),
        form = $form.get(0),
        kind_id = form.kind_id.value,

        adds = $form.find('.additional-cart-params'),
        len = adds.length,
        el;


        var param = {
            'kind_id': form.kind_id.value,
            'params': {}
        }

        if (len) {

            for (var i = 0; i < len; i += 1) {
                el = adds[i];
                if (el.value) {
                    param.params[el.name] = el.value;
                }
            }
        }
        $.ajax({
        	url: '/my/s3/xapi/public/?method=shop2/getPrice',
			type: "get",
			data: {"param": param},
			dataType: "json",
			success: function(data){

				$form.find('.price-current').replaceWith( data.result.data.html.price );
				$form.find('.price-old ').replaceWith( data.result.data.html.price_old );
			}

        });
    },
    select_change: function(){
		if( !shop2.cf_margin_price_enabled ){
		    return;
		};

		var additional_cart_params = $('select.additional-cart-params');

		if( additional_cart_params.length ){
			additional_cart_params.each(function(index, elem ){

				$.on( elem , {
					change: function(e) {
						shop2.margin_price.price_change( $( e.target ), 'form');
					}
				});
			})
		}else {
			return;
		}



    }
};
shop2.queue.margin_price = function() {
	shop2.margin_price.select_change();
};