DOCBOOK-APPS: Modify toc.section.depth through custom driver (XSL)

Hello,

I am a beginner at this, so I apologize for this common question (yes
I have went through the archives).  I want to modify the depth of
the toc through a custom driver (I could change param.xsl manually I realize,
but for my application a custom driver is much more flexible).  The
following is a snippet of my custom driver:

<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:fo="http://www.w3.org/1999/XSL/Format">

...

<xsl:variable name="toc.section.depth">3</xsl:variable>

...

</xsl:stylesheet>

 

When I use this I get the error: "Duplicate Global Variable Declaration". 
How can I modify the depth then????  The archives mentioned the line
above (<xsl:variable name="toc.section.depth">3</xsl:variable>) but
it doesn't seem to work.

Any help on this is much appreciated.  Thanks for your time.

Jeff

 

 

--------------------------

Jeff McKenna

GIS Specialist

DM Solutions Group Inc.

Ottawa, Ontario

http://www.dmsolutions.ca