Bug 132914 "Invalid page number" error message is hard coded.
"Invalid page number" error message is hard coded in DocumentProcessor.java. This must be externalized into *.properties file. If there are other hard coded error messages, please also externalize.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
renderContext.setSupportedImageFormats( "PNG;GIF;JPG;BMP" ); 
		return renderContext;
	}
	/**
	 * Run and render a report,
	 * 
	 * @param runnable
	 * @param outputStream
	 * @param format
	 * @param locale
	 * @param parameters
	 * @param svgFlag
	 * @throws IOException
	 */
	public void runAndRenderReport( HttpServletRequest request,
			IReportRunnable runnable, OutputStream outputStream, String format,
			Locale locale, boolean rtl, Map parameters, boolean masterPage,
			boolean svgFlag ) throws RemoteException
	{
		runAndRenderReport( request, runnable, outputStream, format, locale,
				rtl, parameters, masterPage, svgFlag, null, null, null );
	}
	/**
	 * Run and render a report,
	 * 
	 * @param runnable
	 * @param outputStream
	 * @param locale
	 * @param parameters
	 * @param svgFlag