On 23 April 2009 01:05, George Langley advised:

>       Doh, of course! Just not thinking about the scope of
> the operator. If $var1 = 1, then !$var1 = 0....
>       Thanks everyone!

Well, actually, to be strictly accurate, since ! is a Boolean operator,
if $var1 = 1 then !$var1 = FALSE.



Mike Ford,  Electronic Information Developer,
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