This is a question about how to program with XSLT.

I would like to have the following parameters in my stylesheet:

<xsl:param name="a_or_b"/>
<xsl:param name="a"/>
<xsl:param name="b"/>

If the value of param "a_or_b" is "a", I would like to output the value
of param "a".  If the value of param "a_or_b" is "b", I would like to
output the value of param "b".

<xsl:choose>
 <xsl:when test="$a_or_b = 'a'">
    <xsl:value-of select="$a" />
 </xsl:when>
 <xsl:when test="$a_or_b = 'b'">
    <xsl:value-of select="$b" />
 </xsl:when>
</xsl:choose>

--
Regards,
Mukul Gandhi