var reportUrl = 'path/To/file_name.jasper';
var parametersMap = {
	//tabWidgetId: 'custom_tab_id_'+item.cod_entity,
	reportParameters: {
		date: new Date(),
		project: 'P01'
	},
	gwClassName: 'scoped_class_name',
	updateOnChangeInGwClassNameListString: 'class_name_1'
};
var title = 'title';
var gwHtmlReportTab = openGwHtmlReportTab(reportUrl, parametersMap, title);