[xsl] How to declare a namespace

["frank Stein" <freeposte at hotmail dot com>]

Hi Jeni, many thanks to You for this wonderful answer below.
I'm using the Internet Explorer 5.0 with the msxml3 XSL parser
version patch.

I've followed your instructions and I've declared a couple of functions
within the msxsl:script element but I did not declare the 'msxsl' 
namespace(urn:schemas-microsoft-com:xslt) and my own 'foo' namespace.

While the interpretation the IE.5 outputs the following error :

"Reference to undeclared namespace prefix: 'msxsl'. Error processing 
resource 'file:///D:/Ovide/test.xsl'. Line 10, Position 66

<msxsl:SCRIPT language="javascript" implements-prefix="foo"><![CDATA[
-----------------------------------------------------------------^"

Could You please explain me how and where to declare these two namespaces ?

Thank-You again Jeni.

Ovide

>From: Jeni Tennison <mail@jenitennison.com>
>Reply-To: Jeni Tennison <mail@jenitennison.com>
>To: "frank Stein" <freeposte@hotmail.com>
>CC: xsl-list@lists.mulberrytech.com
>Subject: Re:
>Date: Mon, 29 Jan 2001 21:19:12 +0000
>
>Hi Frank,
>
> > please, is there any way to affect an xml variable with the output
> > return of a JavaScript function ?
>
>Yes, but be aware that Javascript isn't incorporated into XSLT until
>XSLT 1.1 or unless you're using MSXML.  The first thing that you need
>to do is to declare the function within an msxsl:script element:
>
><msxsl:script language="javascript"
>               implements-prefix="foo">
>    function retrieveData() {
>       return true;
>    }
></msxsl:script>
>
>In order to do this, you need to declare the 'msxsl' namespace
>(urn:schemas-microsoft-com:xslt) and your own 'foo' namespace. The
>'msxsl' namespace needs to be declared as an extension element prefix
>(using the extension-element-prefixes attribute on xsl:stylesheet) and
>the 'foo' namespace should be excluded from your result tree (using
>the exclude-result-prefixes or extension-element-prefixes attribute on
>xsl:stylesheet).
>
>Once you've declared the Javascript functions like this, you can call
>them within any XPath expression using, e.g.:
>
>   foo:retrieveData()
>
>So, to set $my_var to have the value returned by the function, use:
>
>   <xsl:variable name="my_var" select="foo:retrieveData()" />
>
>There's nothing in XSLT that interprets the content of an element as
>something to run: calls to functions are *always* in attribute values.
>
>I hope that helps,
>
>Jeni
>
>---
>Jeni Tennison
>http://www.jenitennison.com/
>
>

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