For each with parallel nodelist

Hi...

I have this situation:

<xsl:for-each
select="/CommandList/CheckRouting/RouterList/Router[Complete='true']/GroupLi
st/Group/OutwardList/Outward" > <xsl:variable name="root"
select="/CommandList/CheckRouting/RouterList/Router[Complete='true']/GroupLi
st/Group/ReturnList/Return" />


<xsl:variable name="totale">
<xsl:choose>
<xsl:when test="Price/Amount">
<xsl:value-of select="number(Price/Amount)"/> + <xsl:value-of
select="number($root/Price/Amount)"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="//Group/Price/Amount/text()"/>
</xsl:otherwise>
</xsl:choose>
</xsl:variable>

<xsl:for-each>

The problem is <xsl:value-of select="number($root/Price/Amount)"/>

Return the same results...
It should be following for each order and display the relative result.

The document: www.lastminutesud.it/test/901968736.xml