& XSLT 
minor redraft, forwarding now

>  ------------------------------------------------------------------------
> 
> 
>    EXSLT <http://www.exslt.org/> - System <http://www.exslt.org/sys/>
> 
>  Implementer Page <sys.html>
> 
>  How To <../howto.html>
> 
>  Downloads <../download.html>
> 
>  Modules
> 
>  Dates and Times <../date/index.html>
> 
>  Dynamic <../dyn/index.html>
> 
>  Common <../exsl/index.html>
> 
>  Functions <../func/index.html>
> 
>  Math <../math/index.html>
> 
>  Random <../random/index.html>
> 
>  Regular Expressions <../regexp/index.html>
> 
>  Sets <../set/index.html>
> 
>  Strings <../str/index.html>
> 
>  System <../sys/index.html>
> 
>  Submissions <../submissions/>
> 
>  Mailing List <../list>
> 
>  Contact <../contact.html>
> 
>  	
> 
>  *Implementer Page: *sys.html
>  *Module Package <../howto.html#module-level>: *sys.zip
> 
>  /EXSLT - System/ provides features for using the host system.
> 
>  Currently there are no functions or elements defined for this module.
> 
>  This module defines an additional
>  namespace-|http://exsl.org/environment|-which can be used for
>  accessing system environment variables via the |system-property|
>  <http://www.w3.org/TR/xslt.html#function-system-property> function.
> 
>  Use this namespace as follows. Given |SQ|, a string that is a QName
>  <http://www.w3.org/TR/REC-xml-names#NT-QName> with a prefix that maps
>  to |http://exsl.org/environment| and local part |L|,
>  |system-property(SQ)| returns the value of the system environment
>  variable |L|. For example, if "|env|" maps to this namespace, then
>  |system-property("env:USER")| might return "john".
> 
>  The result of a call to system-function ("env:X") MUST always return
>  the same value (for a given X) throughout the processing session.
>  Which environment variables are available to a given XSLT
>  transformation is system- and implementation-dependent. Whenever an
>  implementation cannot provide a value for a given environment
>  variable, it MUST return the zero-length string as the result of the
>  |system-property| call. The mapping of the encoding of the variable's
>  original value to that of the XPath string object is
>  implementation-dependent.
> 
>  *Note:* Retrieving environment variables can pose a security risk if
>  those environment variables expose sensitive system information.
> 
>  XSLT processors may support any number of the extension elements and
>  functions given in this module.
> 
>  Using EXSLT will only make your stylesheet portable amongst the
>  implementations that support EXSLT. Note that there is no requirement
>  for XSLT processors that are compliant to XSLT to support the
>  extensions described within EXSLT.
> 
> 
>      Namespace
> 
>  The namespace for EXSLT - System is:
> 
> http://exslt.org/system
> 
>  Throughout this document, the prefix |sys| is used to refer to this
>  namespace. Any other prefix can be used within a particular stylesheet
>  (though a prefix must be specified to enable the extension functions
>  to be recognised as extensions).
> 
>  To use these extensions, you need to declare this namespace as an
>  extension namespace in your stylesheet. If your processor supports
>  this module, then that's all you need to do, but if it doesn't, then
>  you need to use a specific third-party implementation or the module
>  stylesheet. Typically, your stylesheet will look like:
> 
> <xsl:stylesheet version="1.0"
>                 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
>                 xmlns:sys="http://exslt.org/system"
>                 extension-element-prefixes="sys">
> 
> <xsl:import href="sys.xsl" />
> 
> ...
>               
> </xsl:stylesheet>
>         
> 
>  http://www.exslt.org/sys/index.html last modified 2006-02-15
> 

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