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
try
		{
			
			ReportEngineService.getInstance( ).renderImage( imageId, out );
		}
		catch ( RemoteException e )
		{
			throw new ReportServiceException( e.getLocalizedMessage( ) );
		}
	}
	public ToC getTOC( String docName, String tocId, InputOptions options )
			throws ReportServiceException
	{
		IReportDocument doc = ReportEngineService.getInstance( )
				.openReportDocument( getReportDesignName( options ), docName );
		TOCNode node = null;
		if ( tocId != null )
		{
			node = doc.findTOC( tocId );
		}
		else
		{
			node = doc.findTOC( null );
		}
		if ( node == null )
		{
			doc.close( );
			throw new ReportServiceException(
					BirtResources
							.getMessage( ResourceConstants.REPORT_SERVICE_EXCEPTION_INVALID_TOC ) );