Bug 193875 we can not get an entir url by IHTMLActionHandler
we can not get an entir url by IHTMLActionHandler, so word emitter dose not write the right url. now hyperlink drill through in word emitter doesn't work.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/utility/ParameterAccessor.java
/**
	 * Initial the parameters class. Web.xml is in UTF-8 format. No need to do
	 * encoding convertion.
	 * 
	 * @param context
	 *            Servlet Context
	 */
	public synchronized static void initParameters( ServletContext context )
	{
		if ( isInitContext )
			return;
		
		workingFolder = processWorkingFolder( context, context
				.getInitParameter( INIT_PARAM_WORKING_DIR ) );
		
		documentFolder = processRealPath( context, context
				.getInitParameter( INIT_PARAM_DOCUMENT_FOLDER ),
				IBirtConstants.DEFAULT_DOCUMENT_FOLDER, true );
		
		imageFolder = processRealPath( context, context
				.getInitParameter( ParameterAccessor.INIT_PARAM_IMAGE_DIR ),
				IBirtConstants.DEFAULT_IMAGE_FOLDER, true );
		
		logFolder = processRealPath( context, context
				.getInitParameter( ParameterAccessor.INIT_PARAM_LOG_DIR ),
				IBirtConstants.DEFAULT_LOGS_FOLDER, true );
		
		logLevel = context
				.getInitParameter( ParameterAccessor.INIT_PARAM_LOG_LEVEL );