On Sun, 18 Sep 2005, Mark Browne wrote:

> JS/UIX is a Unix-like operating system which runs in your web browser. It is
>
> written in JavaScript and features a virtual machine, a shell, a virtual
> file system, process-management and of course a text terminal.
>
> http://www.masswerk.at/jsuix/
>
> Click "open terminal" to start running a session of it in your browser.

And if this isn't a demonstration of what sort of gaping security hole 
Javascript is, I don't know what is.

Brian