Thank you it looks your answer helped. Apr 28, 2013 v 10:08 PM, Andrew Atkinson <andrew at wotcc.org.uk>: > Been adding references, hope that helps Martin S -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.speleo.sk/pipermail/therion/attachments/20130503/95b79317/attachment.htm>