How to pass parameter to VBScript in XSL?

Hi,

I am translating one xml into another using stylesheet.
My input xml has the tag 
<DueDateTime>06/30/2005 23:59:00</DueDateTime>

Now in output xml, i have to deduct one day from this date.
In the stylesheet i have written the following script like this.

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
xmlns:msxsl="urn:schemas-microsoft-com:xslt"
xmlns:vbs="urn:schemas-sqlxml-org:vbs" 
version="1.0">
<xsl:output method="xml" omit-xml-declaration="yes"/>
<msxsl:script language="vb-script" implements-prefix="vbs">
<![CDATA[
     Function fnDate(DueDateTime)
       fndate = cstr(DATEADD("d",-1,DueDateTime))
     End Function          
]]>
</msxsl:script>

Now i am calling the above script in the following trasnformation.
<Start>
  <xsl:value-of disable-output-escaping="yes" select="vbs:fnDate(@DueDateTime)"/>
</Start>

But i its giving the error.

If i directly pass the value as written below, it works.
<Start>
  <xsl:value-of disable-output-escaping="yes" select="vbs:fnDate('05/05/2005')"/>
</Start>

Can you please help me regrding this? I want to pass the node value of DueDateTime in the function. I think there is something wrong with the parameter passing.

Thanks and Regards,
Sudarshan 

Sudarshan Zawar

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