Hi

I am looking for an XSLT pattern to do the following:

• declare a variable that will hold a set of nodes
• conditionally set the variable declared above depending on a number of conditions (ie use a 'choose - when - when' structure)
• use the conditional variable in a for-each statement once it has been set

I'm not quite sure how to go about this in XSLT. I know I can use the choose/when construct, but how do I declare a variable in global scope, set it to a value, then use it later?

thanks