[xsl] Assigning types to variables

["tom tom" <tomxsllist@xxxxxxxxxxx>]

Hi all, if I have declared the following variable:

<xsl:variable name="test" as="element()">
       <one>
           <two>hello</two>
       </one>
</xsl:variable>

I don't understand why <xsl:sequence select="$test/two"/> retrieves the 
value of <two/> while <xsl:sequence select="$test/one/two"/> does not. If I 
omit the 'as' attribute it works the other way round. What exactly is 
happening when I assign a node() or element() or whatever type to this 
variable?

Also could you advise what type I should be using for this kind of task?

I guess my problem is that I'm thinking about variables in XSLT 1 terms!

As usual thanks in advance

Tom

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