        class="ui-button-warning"
                                            update="txtNetTotal"
                                            action="#{patientController.pasteCurrentPatientRunningBalance()}"  >
                                        </p:commandButton>
                                        <p:inputText value="#{patientController.bill.comments}" id="comment"/>
                                        <p:watermark value="Comment" for="comment"/>
                                    </h:panel