Suppressing "Failed to load image:" messages HTML output

Hi.

Is there a way to suppress image file errors like this one:

  Failed to load image: images/image040.jpg

I'm using Saxon 6.5.5 and docbook-xsl-1.75.2 to produce chunked HTML
output. I move the image files and the chunked HTML files into the
correct relative directories in a later process.

The message string seems to be in extensions/saxon65.jar.

Thanks.

Peter