Add line and focus textarea
// ==UserScript==
// @name add_line
// @namespace 1
// @include http://www.eador.com/B2/posting.php?mode=quote*
// @include http://eador.com/B2/posting.php?mode=quote*
// @version 1
// @grant none
// @description Add line and focus textarea
// ==/UserScript==
document.getElementsByName("message")[0].innerHTML = document.getElementsByName("message")[0].innerHTML + "\n";
document.getElementsByName("message")[0].focus();