How to maintain an open dialogue?

I thank @Garrizano because he gave me the idea of how to find the solution

<p:commandButton value="Guardar" 
                 icon="fa fa-save" 
                 actionListener="#{soporteTipoBean.guardarSoporteDocumental}"                                                                      
                 process="@this id_main:panelParamSop" 
                 update="id_main:msgs id_main:nombreNitIPS id_main:dt_ConsultaSoporte id_main:newParamSopor" 
                 styleClass="GreenButton"
                 oncomplete="handleLoginRequest(xhr, status, args)"
                 >
                 <script type="text/javascript">
                  function handleLoginRequest(xhr, status, args) {
                  if(args.validationFailed) {
                      PF('nombreWidgetVar').show();
                  }else {
                   PF('nombreWidgetVar').hide();
                      }
                  }
                  </script>

I use JavaScript. These are the functions I use:

/**
 * 
 * @param {type} xhr
 * @param {type} status
 * @param {type} args
 * @param {type} dialogName
 * @param {type} formName
 * @param {type} widgetName
 * @returns {undefined}
 */
function handleSubmitRequest(xhr, status, args, dialogName, formName, widgetName) {
    dialog = jQuery('#' + dialogName);
    if (args.validationFailed) {
        dialog.effect("shake", {times: 3}, 200);
    } else {
        clearForm(formName);
        widgetName.hide();
    }
}

/**
 * 
 * @param {type} formName
 * @returns {undefined}
 */
function clearForm(formName) {
    jQuery('#' + formName).each(function() {
        this.reset();
    });
}

And on the button where the save is executed, I call the function handleSubmitRequest in this way:

oncomplete="handleSubmitRequest(xhr, status, args, 'idDeDialogo','idDeFormularioDentroDeDialogo', PF('widgetVarDeDialogo'));"

You could add Javascript functions in a .js file and load it in your view to use it in multiple views.