Re: xsl:variable

> is it possible

in XSLT2 yes.

In XSLT1 an arbitrary restriction means that the variable
is called a result tree fragment rather than a node set (the only
difference being that you can't do what you want to do) most procesoors
have an xx:node-set extension function that alows you to go
select="xx:node-set($options)/option[@value='xxxxx']"/>
where xx is bound to whatever namespace they need: eiether a
system-specific namespace or EXSLT namespace.

David


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