[xsl] How do I write this in xsl where it could take on 1 of 3 values based on certain conditions ?

Subject: [xsl] How do I write this in xsl where it could take on 1 of 3 values based on certain conditions ?
From: "Z W" <mpc8250@xxxxxxxxx>
Date: Wed, 26 Mar 2008 23:38:38 -0700
Hi Gurus

I have a variable that can be 1 of 3 values.
How do I write this in xsl where it could take on 1 of 3 values based
on certain conditions ?
I'm getting errors saying one cannot declare more than 1 variable.

MAny thanks

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