Hello nanogers, thank you all for your fast and uncomplicated help. I'm overwhelmed about the respond. Thanks a lot -- Best regards, Frank Kuempel mailto:frank@try-us.de If it's there and you can see it - it's REAL If it's there and you can't see it - it's TRANSPARENT If it's not there and you can see it - it's VIRTUAL If it's not there and you can't see it - it's GONE