accessing xml elements from current and external file

Hello all,

I have a separate configuration file for some configuration. I am trying to access elements from this file, and compare them to elements in the file being processed. However, when I use for-each and select elements from configuration file, I can not access elements in the file being processed at the same time.

Here is some code that explains what I am doing:

            <xsl:for-each select="document('configuration.xml')/d:config/d:options">
            <option>
                <xsl:attribute name="label" >
                <xsl:choose>
                    <xsl:when test="/s:root/s:element[ s:id=1 ]= ." >
                    <xsl:value-of select="'true'" />
                    </xsl:when>
                </xsl:choose>
                </xsl:attribute>
            </option>
            </xsl:for-each>

If there is something not clear, please let me know.

Thank you.