Hi David,

Your string needs to be in single quotes for it to be recognised as a string.

I.e. Change this line:

    <xsl:with-param name="parmA" select="abcdef" />

To this:

    <xsl:with-param name="parmA" select="'abcdef'" />

And you will see it works :)

And the complete copy of your XSLT with the change:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet
    version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:msxml="urn:schemas-microsoft-com:xslt"
    xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" xmlns:tagsLib="urn:tagsLib" xmlns:BlogLibrary="urn:BlogLibrary"
    exclude-result-prefixes="msxml umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets tagsLib BlogLibrary ">
<xsl:output method="xml" omit-xml-declaration="yes"/>
<xsl:param name="currentPage"/>

<xsl:template match="/">
    <xsl:call-template name="secTemplate">
    <xsl:with-param name="parmA" select="'abcdef'" />
    </xsl:call-template>
</xsl:template>

<xsl:template name="secTemplate">
    <xsl:param name="parmA" />
    <xsl:text>Parm A:</xsl:text>
    <xsl:value-of select="$parmA" />    <!-- this is not being displayed -->
</xsl:template>

</xsl:stylesheet>

Also try changing the with-param statement to this:

    <xsl:with-param name="parmA" select="$currentPage/@nodeName" />

And then you will see the node name output in your secTemplate.

Cheers,

Chris