Well, I’m working this out one tentative step at a time. My friend Ruth has been on it me to join the bloggersphere so this it it. I know that no-one is reading this at the moment (and may never?) so I may as well just drag my elbows across the keys like this:xssssssssjksxoklmjxdklsxklllllllllllllllllllllllsdkljxc kkkkkkkkksd;sd;sd;sd;sd;sd;lk. More to follow, I expect.