exslt extension error in xalan2.4.1

Hi all,

I installed xalan 2.4.1 now independently to cocoon.
i setted  xercesImpl.jar, xml-apis.jar, and xalan.jar within my classpath.
Within a simple stylesheet, i added these instructions:
xmlns:dyn="http://exslt.org/dynamic"
<xsl:template match="/">
<xsl:if test="function-available('dyn:evaluate')">
<p> exslt extension is available</p>
</xsl:if>
</xsl:template>

when i called this stylesheet in command line: java 
org.apache.xalan.xslt.Process -in doc.xml -xsl doc.xsl;
xalan returned: XSLT Error (javax.xml.transform.TransformerException):Unknow 
error in xpath.

Should anyone know what appened? what is wrong? This version claims to 
support EXSLT extension, do i make other configuration tasks? Any remarks 
from you are welcome.

I thank you in advance

Majirus

_________________________________________________________________
Recevez par e-mail des émoticônes pour MSN Messenger 
http://g.msn.fr/FR1001/2275?url=http://www.msn.fr/ilovemessenger/premium/Default.asp?Ath=f