Bug 154178 Support projectFolder in BIRT viewer
If the report supports projectFolder, the viewer also need to enhance for this feature.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/BirtViewerReportService.java
IGetParameterDefinitionTask task = getParameterDefinitionTask( design );
		return convertEngineParameters( task.getParameterDefns( true ), task,
				includeGroups );
	}
	public Map getParameterValues( String docName, InputOptions options )
			throws ReportServiceException
	{
		IReportDocument doc = ReportEngineService.getInstance( )
				.openReportDocument( getReportDesignName( options ), docName );
		Map paramValues = doc.getParameterValues( );
		doc.close( );
		return paramValues;
	}
	public Collection getSelectionListForCascadingGroup(
			IViewerReportDesignHandle design, String groupName,
			Object[] groupKeys, InputOptions options )
			throws ReportServiceException
	{
		IGetParameterDefinitionTask task = getParameterDefinitionTask( design );
		task.evaluateQuery( groupName );
		Collection selectionList = task.getSelectionListForCascadingGroup(
				groupName, groupKeys );
		return convertEngineParameterSelectionChoice( selectionList );
	}
	public Collection getParameterSelectionList(
			IViewerReportDesignHandle design, InputOptions runOptions,
			String paramName ) throws ReportServiceException
	{
		IGetParameterDefinitionTask task = getParameterDefinitionTask( design );
		Collection selectionList = task.getSelectionList( paramName );