Hi list

I used before with dtml something like this
<dtml-call "request.set('sumVar',0)">
<dtml-in ...>
<dtml-call "request.set('sumVar', sumVar + queryVar)">
</dtml-in>
The sum is <dtml-var sumVar>

This is possible to made with ZPT?
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Lo bueno de vivir un dia mas
es saber que nos queda un dia menos de vida