I don't know if this is the right area for this post but I have a stylesheet 
that I use to render XML to another format.  At the moment I need to have a 
variable set to a particular XPath based on a certain test case derived from 
the XML file.

So I would have something like

<xsl:template name="A">
    <xsl:choose>
        <xsl:when test="(insert logic expression)">
            <xsl:variable name="myVar" select="(insert Xpath expression)"/>
        </xsl:when>
        <xsl:otherwise>
            <xsl:variable name="myVar" select="(insert other Xpath 
expression)"/>
        </xsl:otherwise>
    </xsl:choose>
</xsl:template>

Now this is just pseudocode I put up but the problem I have is that the 
variable will be out of scope and if I do declare it above the <xsl:choose> 
statement it will not work either, I assume since XSL variable cannot be 
reassigned.

Anyway I am an XSL newbie as you can tell any proper way of setting a 
variable based on a conditional statement?

Thank you for your replies.