[xsl] [XSLT]Use value of parameter

[IZASKUN GUTIERREZ GUTIERREZ <igutierrez027@xxxxxxxxxxxxx>]

Hello everybody!

I want one templete. This template have one global parameter. In the  
template I need change value of the global parameter, but I dont know  
if this is possible and how to do it.

And other question:

I need pass a parameter from one template to other template and pass  
the result from the second template to de first (like a normal  
function).

Anybody can help me?

Thank you, Regards

Izaskun