> I want to test if there is only one child element and it's name is bva.
...

> I just figured it out. 
> 
> 			<xsl:if test="bva[last() = 1]">
> 
> D'-oh!


No, that tests if there is only one bva element (there may be elements
with other names)

<xsl:if test="*[last() = 1 and self::bva]">

David


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