> What I want to do is create a large number of variables, all 
> with unique names, I extract these names from an xml file 
> each time I transfrom it with my stylsheet. The varaible 
> names comes from the parent node and the values from an 
> attribute of the child. 

Not a good approach to your problem at all. Instead of putting the
values in variables, put them in named nodes in a temporary tree.

Michael Kay
Software AG
home: Michael.H.Kay@xxxxxxxxxxxx
work: Michael.Kay@xxxxxxxxxxxxxx 


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