date:add problem

Hi,

My requirement is to add a day in a date. I tried as below.

<xsl:call-template name="date:add">
	<xsl:with-param name="date-time" select="$exsltDate"/> 
	<xsl:with-param name="duration" select="P1D"/>
</xsl:call-template>

The $exsltDate has value 2005-01-07. I tried some hit and trials but no
result. the call-template just returns blank. Is there any problem in
date:add template?

I properly defined name space and included the template.

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0"
	xmlns:date="http://exslt.org/dates-and-times"
		extension-element-prefixes="date">

<xsl:include href="date.add.template.xsl"/>

In the same environment I am able to date:difference successfully. Please
help its urgent.

Thanks
Bhushan

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