You appear to want to automate the login process in your browser. Is there any reason you don't use cookies, or create a bookmark with the login query in it? Also, there IS a fixed login sequence if you follow the "log in" link from the front page.

Anyway, I guess it could be useful to have the login form in the HTML before the content instead of after it. Giving it a fixed tabindex (with the current HTML) will probably confuse users with text browsers, so I'd rather not have that.