<p:commandButton alt="#{lbl['print.button']}"
                         disabled="#{!cardStatementFragment.validDatePeriod}"
                         value="#{lbl['print.button']}" ajax="false" process="@this"
                         rendered="#{not empty cardStatementFragment.transactionHistoryAccount.allTransactions}"
                         onclick="PrimeFaces.monitorDownload(start, stop);"
                         styleClass="text-btn">
            <p:fileDownload value="#{cardStatementFragment.downloadCheckReport(true)}"
                            contentDisposition="inline"/>
        </p:commandButton>

                <p:commandButton value="#{lbl['print.preview']}" process="@this" update="sendToEmail" ajax="false"
                                 onclick="PrimeFaces.monitorDownload(start, stop); onclick=this.form.target='_blank'; "
                                 styleClass="">
                    <p:fileDownload value="#{cardHistoryElementInfo.downloadReport(true)}"
                                    contentDisposition="inline"/>
                </p:commandButton>

    <script type="text/javascript">
        function start() {
            PF('bui').show();
        }

        function stop() {
            PF('bui').hide();
        }
    </script>