how to get currently logged on user (like vbscript)

"Michael Rieger" <[email protected] (AT)> Sun, 8 Jan 2006 00:45:26 +0100

Newsgroups	gmane.comp.mozilla.devel.windows
Organization	Another Netscape Collabra Server User
Message-ID	<[email protected]>

hello,
i had to build a website, where the username of the currently logged on user
should be inserted automatically.

we use firefox 1.5

is this possible ? for example with xul or xbl ?

greetings from germany,
michael