case insensitivity

From: Saqi <saqib.javed@gmail.com> Date: Thu, 3 Jul 2008 09:51:21 +0500 Message-ID: <e43b65bd0807022151y6426d2f0w235dce55b70c72aa@mail.gmail.com> To: www-xsl-fo@w3.org · This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 3 July 2008 04:52:01 GMT

Hello every one.
 i want to use xsl:if for testing some string but discarding the case
sensitivity.
the sample is
    <xsl:when test="F2 = 'Starting Balance' ">
        <xsl:value-of select="F2"/>
     </fo:inline>
now i want to check it for lower case or upper case. I've already gone
through many codes but cannot understand its working. lower-case of xpath is
also not working.
Thanks
Regards,
Saqib javed