Which XSL DTD to use and how do I find the depth of a

Hi There,

  I have two unrelated questions regarding XSL.

  One is which XSL DTD should I use  - "http://www.w3.org/TR/WD-xsl" 
or "http://www.w3.org/1999/XSL/Transform"?   How are they different
and which is newer/better?

  My second question is what is the way to calculate the depth 
(number of levels below the root) of a node in an XML document 
using XSL?


Thanks,
Uri Goldstein,
Israel





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