[xsl] Error trapping in xsl

Subject: [xsl] Error trapping in xsl
From: "dante" <dante@xxxxxxxxxxxxx>
Date: Thu, 12 Jul 2001 15:52:55 +0800
G'Day all,
This is my first post to this list so any help would be appreciated.
I'm trying to error trap for empty elements in the xml document
using xsl:choose & I can't work out the syntax.
The element <image_link> contains the data for the image attribute src
& when it's empty a broken image is shown.
What I would like it to do is show a null image instead.

Here's what it looks like so far:

         <xsl:when test="foo"><!--ELEMENT CONTENT NOT EMPTY-->
                <!--SHOW IMAGE LINK VALUE-->
                <img><xsl:attribute name="src"><xsl:value-of
select="image_link" /></xsl:attribute></img>
         <xsl:otherwise><!--ELEMENT CONTENT EMPTY-->
                <!--SHOW NULL IMAGE-->

Is this the best/only method to use?
Is there a way of error trapping for empty elements globally using xsl?
I'm using the msxml3 parser to output the xml document to ie5.5.

            Oliver Reid

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