こういう感じだとどうでしょうか
和田憲幸 (2020-05-14 09:30:31) www.synck.com
var obj = document.getElementById(’order_address1’);
document.getElementById(’deliv_price’).value = obj.options[obj.selectedIndex].getAttribute(’data-shipping’);
和田憲幸 (2020-05-14 09:30:31) www.synck.com
var obj = document.getElementById(’order_address1’);
document.getElementById(’deliv_price’).value = obj.options[obj.selectedIndex].getAttribute(’data-shipping’);