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/service/ReportEngineService.java
}
			return result;
		}
		return null;
	}
	/**
	 * Gets the mime-type of the given emitter format.
	 * 
	 * @param format
	 * @return mime-type of the extended emitter format
	 */
	public String getMIMEType( String format )
	{
		return engine.getMIMEType( format );
	}
	/**
	 * Returns the engine config
	 */
	public EngineConfig getEngineConfig( )
	{
		return config;
	}
	/**
	 * Shutdown ReportEngineService, set instance as null
	 */
	public static void shutdown( )
	{
		instance = null;
	}
}