Is it possible to bring external data into an xml instance?

1. a parameter passed into your processor at runtime
2. an external document called in via the document() function

Example: XML/XSLT form for data capture open in browser on a pc (of
course!)...

When the form is processed, is there any way to automatically capture
external
data such as the PC name so that it is included in the XML doc?

Cheers,
Wendell

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    "Thus I make my own use of the telegraph, without consulting
     the directors, like the sparrows, which I perceive use it
     extensively for a perch." -- Thoreau