Performing an expression on attributes of a node-set

Hi all,

  My subject might be a bit confusing, but my problem isn't;  I am making a
simple shopping cart, and need a way to display the total price of all the
Items.  A simple task, I thought, until I tried doing it.

Getting the total number of items was easy:

sum(//Item/@qty)

And getting the total price of each item was easy:

format-number(sum(//Item/@price), '####0.00')

 But I need the sum of each (price*qty).  I tried everything I could think
of, but no luck.  Any clues on how to do this?

Thanks.
Jim Sproull
jim@xxxxxxxxxxx


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