+ $_POST['due_date'] = get_invoice_duedate($_SESSION['Items']->payment,
+ $_POST['InvoiceDate']);
+ $Ajax->activate('due_date');
+}
+if (list_updated('payment')) {
+ $_SESSION['Items']->payment = get_post('payment');
+ $_POST['due_date'] = get_invoice_duedate($_SESSION['Items']->payment,