> Hmm, am i missing something... 

Probably the XPath spec:
http://www.w3.org/TR/xpath

> how do I select all ancestors that are either
> thread or post elements
> I thought something like  select="ancestor::post $and$ ancestor::thread" but
> obviously I was wrong..

$and$ should be and
But then it is a boolean expression, that's not what you want.
You need the union operator:

select="ancestor::post | ancestor::thread"

Cheers,
Oliver


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|  ob|do        Dipl.Inf. Oliver Becker                             |
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|  op|qo        WWW:    http://www.informatik.hu-berlin.de/~obecker |
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