Testing for numerics

[J. Landman Gay]

FlexibleLearning at aol.com wrote:
> Declaring initialised globals is not supported, so "global gAGlobal" is  
> fine, but "global gAGlobal=empty" throws an error.

On the other hand, just declaring a global automatically initializes it 
to empty, so maybe that's enough for the original poster. I don't see 
too much difference between empty and NULL; there's a slight difference 
but probably not one that would matter too much in most cases.

-- 
Jacqueline Landman Gay         |     jacque at hyperactivesw.com
HyperActive Software           |     http://www.hyperactivesw.com