Processing FOP with parameters

HI, I want to use FOP to prepare a XML document for printing (ps/pdf). Is it possible to send parameters to FOP to do conditional formating as exist in xsl processors

XSL:

<xsl:param name="isDuplicate">no</xsl:param>
....
<xsl:if test="$isDuplicate='yes'">
    <h2 align="center">Copy</h2>
</xsl:if>
....

From stackoverflow

• If you're using the fop batch/shell file that comes with the distribution, you can use the --param argument to fop, as documented on the Fop page

    -param name value <value> to use for parameter <name> in xslt stylesheet
                      (repeat '-param name value' for each parameter)
  

  eLAN : You're right; I don't know how I missed that... :)