Just to continue from John Nichol's original thread.
For those who are new to the subject the original thread can be found on:
www.pprune.org/cgbin/ultimatebb.cgi?ubb=get_topic&f=46&t=000333
If you don't know me, the link may not work. If you do know me, could you put the correct link on please!!
Regards all
Brian
"Justice has no expiry date" - John Cook