<h:panelGroup rendered="true" > 
                                                <ph:A4_paper_with_headings bill="#{pharmacyBillSearch.bill}"></ph:A4_paper_with_headings>
                                            </h:panelGroup>
                                        </h:panelGroup>
                                        
                                        <h:panelGroup id="gpBillPreviewPosHeader" rendered="#{sessionController.loggedPreference.pharmacyBillPaperType eq 'PosHeaderPaper'}"> 
         