XSL :: page value assignment

[surabhi]

Need to add continue in footer if page exceeding 1 and restrict it from last page.
but in xslt we are not able to assign the page value, also not able to restrict it. kindly help

<xsl:variable name="vPageNumber"><xsl:value-of
select="foage-number"/></xsl:variable>
<xsl:variable name="lastpage"><xsl:value-of
select="foage-number-citation-last"/></xsl:variable>

<xsl:choose>
<xsl:when test="$vPageNumber = $lastpage">
<fo:block font-size="10pt" font-family="Arial" color="#000000" text-align="left">last page
</fo:block>
</xsl:when>
<xsltherwise>
<fo:block font-size="10pt" font-family="Arial" color="#000000" text-align="left">Continued
/fo:block>
</xsltherwise>
</xsl:choose>

this is not working.