Automatically "promoting / publishing" user comments to their facebook profile page.

Hi, Is there a way or a plugin that will allow for a checkbox to display beneath the default comment text box to auto publish the comment to the users profile page upon submission?

I know of comments plus but its not quite what I am looking for.

I neeed something simpler.

Any insight, I've searched and tested plugins for quite some time to no avail.

note: I don't want the entire comment form replaced, just the option to add the code snippet to my pre-existing theme.

*it would look similar to how the "notify me on responses via email" does in these forum posts*