Atualizar dado dentro de um <h:outputScript>

<c:if test="${vendaPlanosBean.abrirGuiaGeral}">
						
	<h:outputScript>
				
		var relatorio = '../../resources/boleto/<h:outputText value="#{vendaPlanosBean.pathBoleto}"/>'
		alert(relatorio);
  	        jan = window.open(relatorio, '','height=700,width=1150,scrollbars=no,menu=no,location=no,status=yes');
  	        jan.opener = this;
						
	</h:outputScript>
</c:if>

<p:commandButton value="Fechar" ajax="false" update="formDados" actionListener="#{vendaPlanosBean.fechaNotaFiscal}"
				rendered="#{vendaPlanosBean.saida.situacao ne 'F' and not empty vendaPlanosBean.auxiliarVenda}"
				icon="ui-icon ui-icon-disk"
				style="width: 100px;">
</p:commandButton>

montaPathBoleto(cliente);
					
abrirGuiaGeral = new Boolean(true);
					
GeraBoleto geraBoleto = new GeraBoleto();

boletosVendas = geraBoleto.geraBoleto(parcelasPlano, saida);//, emr.empresaPorSituacao("A"
saida.setBoletosVenda(boletosVendas);