> how can i build expression "select" in <xsl:value-of 
> select=""/> dynamicaly,


XSLT 1.0 does not allow you to build an XPath expression from a string.

Consider using the saxon:evaluate() or xalan:evaluate() extensions.

Mike Kay

 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list