highlight code in webworker

[GoogleCodeExporter]

What steps will reproduce the problem?
1. Use importScripts() in a WebWorker


I want to highlight scripts, users write down
on a textarea. 
Because it takes longer than 1 second for highlighting
more than 180 lines  of code on my system, I want
to highlight the text in a webworker script.
(AMD Athlon X2 5200+ @2,7ghz, 4gb RAM )

Problem is, the prettify script use 'window'
which is not usable in webworker.

Is there maybe a simple solution to go arround or am I allowed
to modify the script by myself?

Thank you
Thorsten

Original issue reported on code.google.com by t-bon...@gmx.net on 5 Apr 2012 at 10:31