preceding-sibling::node()[1] to root node

I have a question.. 

What should be the output of?

<xsl:template match="/">
  <xsl:value-of
select="count(preceding-sibling::node()[1])" />
</xsl:template>

Should it be 0 or 'NaN' .. Or something else?

Regards,
Mukul



		
__________________________________ 
Discover Yahoo! 
Get on-the-go sports scores, stock quotes, news and more. Check it out! 
http://discover.yahoo.com/mobile.html