Include username & password in hyperlink?

Is it possible to include a username and password within a hyperlink, so that the user can enter the site without having to type this in the login page?  I am thinking along the lines of what is possible for ftp sites, ftp://user:password@host.

For security reasons, we implemented pass-through login feature via cookie instead of URL.
Please see this topic for more information on this feature:
Pass-through login