ftp URLs and browser behaviour

If I want to reference a resource via an ftp URL that requires a username 
and password (other than anonymous) on the host machine, is there a 
standard way to indicate this in the URL without providing a username 
i.e.

  ftp://:@myhost.com/a/resource

This doesn't work (under Netscape), but the alternative

  ftp://myhost.com/a/resource

only tries the username 'anonymous' and fails if this is not supported 
on the host.  Is there a standard solution (the URL RFC 1738 isn't clear 
on this) or is it simply a browser implementation issue (Cyberdog 
for example requests a username and password if anonymous fails).

Thanks,

Steve.

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Steve Heaney
Schlumberger

<URL:http://www.slb.com/cgi-bin/people.pl?type=person&name=steven%20heaney>
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