Bug 172643 Image in target report cannot display after drill through link.[04]
Description: Image in target report cannot display after drill through link. Build number:2.1.2.v20070202 Steps to reproduce: 1. New a folder inside project "scripting" 2. Copy attached report and image to scripting folder. 3. Preview the report and click the second image. Expected result: Open itself in a new window and display two images. Actual result: The first image cannot display. Error log:N/A
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
{
			File dir = new File( scriptLibDir );
			getAllJarFiles( dir, jarFileList );
		}
		String scriptlibClassPath = ""; 
		for ( int i = 0; i < jarFileList.size( ); i++ )
			scriptlibClassPath += EngineConstants.PROPERTYSEPARATOR
					+ ( (File) jarFileList.get( i ) ).getAbsolutePath( );
		if ( scriptlibClassPath.startsWith( EngineConstants.PROPERTYSEPARATOR ) )
			scriptlibClassPath = scriptlibClassPath
					.substring( EngineConstants.PROPERTYSEPARATOR.length( ) );
		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
	 *