"Teammates Only" check box reload

With or without AJAX, any time you send something the the chat, the box automatically resets to the checked position (Teammates only). I'd rather have the checkbox remain unchecked upon a reload if that is what it was sent before the reload of the page/chat. Sometimes I send multiple lines to the general chat (since there is a character limit per each line sent) and I always forget about the checkbox and so most of it is sent to my teammate(s) only.
Priority: I donno, a 2 at best. It's nothing vital or important, but I think it would make things a bit easier, and, color me ignorant, but I would think it's easy to code.
Priority: I donno, a 2 at best. It's nothing vital or important, but I think it would make things a bit easier, and, color me ignorant, but I would think it's easy to code.