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
* Render image.
	 * 
	 * @param imageId
	 * @param request
	 * @param outputStream
	 * @throws RemoteException
	 */
	public void renderImage( String imageId, HttpServletRequest request,
			OutputStream outputStream ) throws RemoteException
	{
		assert ( this.imageHandler != null );
		try
		{
			this.imageHandler.getImage( outputStream, ParameterAccessor
					.getImageTempFolder( request ), imageId );
		}
		catch ( EngineException e )
		{
			AxisFault fault = new AxisFault( e.getLocalizedMessage( ), e
					.getCause( ) );
			fault
					.setFaultCode( new QName(
							"ReportEngineService.renderImage( )" ) ); 
			throw fault;
		}
	}
	/**
	 * Create HTML render option.
	 * 
	 * @param svgFlag