Bug 147834 Drill through multi-page report document will only show the first page when preview in HTML/PDF
Description: When target report document has multiple pages, drill through will only show the first page. Steps to reproduce: 1. New a report with multiple pages, preview it in web viewer to create report document 2. New another report, drill through to this report document 3. Preview in HTML/PDF, only the first page of target document shows up Notes: Preview in WebViewer will get correct result
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
System.setProperty( EngineConstants.WEBAPP_CLASSPATH_KEY,
				scriptlibClassPath );
		config.setEngineHome( "" ); 
	}
	/**
	 * Get engine instance.
	 * @return the single report engine service
	 */
	public static ReportEngineService getInstance( )
	{
		return instance;
	}
	/**
	 * Get engine instance.
	 * @param servletConfig 
	 * @throws BirtException 
	 * 
	 */
	public static void initEngineInstance( ServletConfig servletConfig )
			throws BirtException
	{
		if ( ReportEngineService.instance != null )
		{
			return;
		}
		ReportEngineService.instance = new ReportEngineService( servletConfig );
	}
	/**
	 * Get all the files under the specified folder (including all the files
	 * under sub-folders)