{
if (!isset($_POST['InvoiceDate']) || !is_date($_POST['InvoiceDate'])) {
display_error(_("The entered invoice date is invalid."));
+ set_focus('InvoiceDate');
return false;
}
if (!is_date_in_fiscalyear($_POST['InvoiceDate'])) {
display_error(_("The entered invoice date is not in fiscal year."));
+ set_focus('InvoiceDate');
return false;
}
if (!isset($_POST['due_date']) || !is_date($_POST['due_date'])) {
display_error(_("The entered invoice due date is invalid."));
+ set_focus('due_date');
return false;
}
if ($_SESSION['Items']->trans_no == 0) {
if (!references::is_valid($_POST['ref'])) {
display_error(_("You must enter a reference."));
+ set_focus('ref');
return false;
}
if (!is_new_reference($_POST['ref'], 10)) {
display_error(_("The entered reference is already in use."));
+ set_focus('ref');
return false;
}
}
if (!check_num('ChargeFreightCost', 0)) {
display_error(_("The entered shipping value is not numeric."));
+ set_focus('ChargeFreightCost');
return false;
}