eOrderController.aprovedBill.paymentMethod}"
                                                     class="w-100 mb-2">
                                        <f:selectItem itemLabel="Select Payment method" />
                                        <f:selectItems value="#{enumController.paymentMethodsForPo}" />
                                        <p:ajax process="@this" update="po" event="change" />
                                        <p:ajax process="@this" update="duration" event="itemSelect" />
 