rk" >
                                <f:facet name="header">  
                                    <h:outputLabel value="Remark"/>
                                </f:facet> 
                                <h:outputLabel value="Cancelled. (#{b.cancelledBill.deptId})" rendered="#{b.cancelled==true}" ></h:outputLabel>
                            </p:column>

                            <p:columnGroup type="footer">  
                                <p:row >  
                                    <p:column co