Java Programming

Hi, I have a question about the jdk logging configuration. I have a EJB (deployed into glassfish) which uses JDK Logging to output messages.
Therefor I use a named logger with a code like this:

	private static Logger logger = Logger.getLogger("org.imixs.workflow");
.....
       logger.fine(" some info...");
....

I know that I can configure the loglevel for my logger by adding the following line into the logging.properties File from Glassfish:

.....
org.imixs.workflow.level=FINE

But how can I specify the output file for my logger? I would like to put all messages from the logger named 'org.imixs.workflow' into a separate file. Is this possible?

Thanks for any help

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ralph