[Karl Stubsjoen]

> I am performing a CHOOSE | WHERE | OTHERWISE ... the test for 
> this choose is
> to see whether or not my @AvailableInventory is '' (empty).  
> It doesn't seem
> to work, but indeed there is no real value in this attribute. 
>  I'm thinking
> it is padded with spaces.  So how would I perform my test, 
> but trim all the
> spaces... or is there another test for "Empty"?

If you might have whitespace in the attribute value, just get rid of it
using normalize-space() - 

<xsl:when test="normalize-space(@availableInventory)=''">

Cheers,

Tom P

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