Logging in while posting

At the bottom where you type your response there is a field for your name and password. Is this used to log in while submitting your response at the same time? If so could someone tell me how to work it. I always in my info and it always takes me to the log in screen.

Far off in the uncharted backwaters of the Straight Dope Message Board lies a small, unregarded forum called About This Message Board. The topmost thread therein is titled FAQ - technical issues - please read this BEFORE posting a question. Therein shall you find the answer you seek. Saith Gaudere: