ll.paymentMethod}">    
                                        <f:selectItem itemLabel="Select Payment method"/>
                                        <f:selectItems value="#{enumController.paymentMethodsForPurchases}">
                                        </f:selectItems>
                                        <p:ajax process="@this" update="po" event="change"/>
                                        <p:ajax process="@this" update="duration" event="itemSelect" />
                                   