uncheck "Post to facebook" as default in facebook comment social plugin

I want to have the possibility for users to post comments on a page on my website. But i dont want that peoples comments should show up on their wall.

So how can i have the checkbox "Post to facebook" unchecked as default? And even better开发者_如何学编程, can i also remove it?

A picture of the box can be seen here: http://dl.dropbox.com/u/653527/facebookcomment.png

Thanks!

---

There isn't an option for this currently. You could request it by getting a hold of Facebook on their developer group page.