>>        <xsl:if test="$d">
>>                <xsl:value-of select="$d"/> <!-- Output is
>> nb-discount="" why the output is not 0 as expected-->

Or of course when $d = 0 it's effective boolean value is false() so
the value-of would never be executed....



-- 
Andrew Welch
http://andrewjwelch.com
Kernow: http://kernowforsaxon.sf.net/