Reference value of parent node within template match?

["Paul Delange" <Paul.Delange@cami.ca>]

Hi!

In puesdo-English, I need to output a <TERMS_CD>00</TERMS_CD> because, is
the XML below, DEFAULT_LOC = 1, therefore the payment terms for the default
location are 00.

      <VENDOR class="R">
        <VENDOR_ID IsChanged="Y">000000001</VENDOR_ID>
        <DEFAULT_LOC IsChanged="Y">1</DEFAULT_LOC>
        <VNDR_LOC_SCROL class="R">
          <VENDOR_LOC class="R">
            <VNDR_LOC IsChanged="Y">1</VNDR_LOC>
            <PYMNT_TERMS_CD IsChanged="Y">00</PYMNT_TERMS_CD>
          </VENDOR_LOC>
        </VNDR_LOC_SCROL>
        <VNDR_LOC_SCROL class="R">
          <VENDOR_LOC class="R">
            <VNDR_LOC IsChanged="Y">3</VNDR_LOC>
            <PYMNT_TERMS_CD IsChanged="Y">99</PYMNT_TERMS_CD>
          </VENDOR_LOC>
        </VNDR_LOC_SCROL>
        <VNDR_VAT_RGSTRN class="R">
          <VAT_RGSTRN_ID/>
        </VNDR_VAT_RGSTRN>
      </VENDOR>

When I apply a template I can't reference a value from a parent node - or
can I?

<xsl:apply-templates select ="VENDOR/VNDR_LOC_SCROL/VENDOR_LOC"/>
...
<xsl:template match="VENDOR_LOC">
   <xsl:if test="VNDR_LOC = "The parent value of DEFAULT_LOC">
      <test><xsl:value-of select="PYMNT_TERMS_CD" /></test>
   </xsl:if>
</xsl:template>

If someone can solve this for me, there will forever be a giant in my eyes
;o)