bash.js

/* 
 * Script that makes points on http//bash.org.pl visible before voting, and
 * kills some ads.
 *
 * I tested it with UZBL <http://uzbl.org>, it should be easy to modify this
 * script for browsers that support userscripts. For example Opera or Firefox
 * with Greasemonkey.
 *
 * If you are using UZBL add following line to your uzbl config:
 * @on_event LOAD_FINISH sh 'echo $6 | grep -qF bash.org.pl && echo script /path/to/bash.js > $4'
 *
 * This program is free software. It comes without any warranty, to the extent
 * permitted by applicable law. You can redistribute it and/or modify it under
 * the terms of the Do What The Fuck You Want To Public License, Version 2, as
 * published by Sam Hocevar. See http://sam.zoy.org/wtfpl/COPYING for more
 * details.
 *
 *                                    by Paweł Zuzelski <pawelz@pld-linux.org>
 */

function kill(el) {
	p = el.parentNode;
	p.removeChild(el);
}

function killByXpath(s) {
	applyByXpath(s, kill);
}

function applyByXpath(s, f) {
	var kl = [];
	var hell=document.evaluate(s, document.documentElement, null, XPathResult.ANY_TYPE,null);
	while(evil=hell.iterateNext()) kl.push(evil);
	while(evil=kl.pop()) f(evil);
}

(function () {
	var span;
	applyByXpath("//span", (function(a){a.style.visibility = "visible"}));
	killByXpath("//a[@class='fbshare']");
	killByXpath("//div[@id='side_ads']");
	killByXpath("//div[@id='banner1']");
	killByXpath("//iframe");
})();