Sorry for the recent wave, we seem to live in interesting times; 2007, that is, according to the Economist. http://www.economist.com/theworldin/business/displayStory.cfm?story_id=81333 68&d=2007 W -------------------------------------------- Wainer Lusoli w.lusoli@chester.ac.uk http://www.lusoli.info http://del.icio.us/lusoli