EdTrice: Thanks, Ed. Feel free to correct any of my mistakes by PM. Of course, except obvious typos But beware, don't even try to write in my native language So far it's enough for me when I am able to write quite fast and most people don't have problems with understanding me. BTW, why "an" FYI? "F" doesnt look like a vowel for me, so I would expect "a". To be honest I didn't know abbreviations use articles ("a, an, the") Though sure OT again, may be there is some language purists board also