<!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body text="#000000" bgcolor="#FFFFFF"> Thanks Mark! There are important tips in your suggested comment. It seems a bit too verbose to me, though. It reads as book documentation and not comment, which may want to be more concise with a more telegraphic wording. Other may have different opinion though, I hope they can share it. <pre class="moz-signature" cols="72">-- <a class="moz-txt-link-freetext" href="http://mamot.fr/@drgeo">http://mamot.fr/@drgeo</a></pre> </body> </html>