My file structure is as follows.

  <yy id="test">
       <xx yyy="184"/>
  </yy>
  <yy id="test2">
     <xx yyy="185"/>
  </yy>



so assuming id is of type ID


> <xsl:attribute name="path"><xsl:value-of select="id('test')/xx"/></
> xsl:attribute>

will produce path="" as the string value of the xx element is empty.

> <xsl:attribute name="path"><xsl:value-of select="id('test')/xx/@yyy"/></
> xsl:attribute>

will produce path="185"

assuming your <xsl:attribute are in a position in the stylesheet where
it is legal to generate attribute nodes.

David


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