senquifokers xsl pt

As stated by DevNull, tokenize() is an XSLT 2.0 function. However, if your processor supports EXSLT, use can use the str:tokenize() function. Otherwise you will need to user recursion to split your comma...

Then you can convert to upper case: <xsl:value-of select="translate($toconvert,$lcletters,$ucletters)"/>.