My New GreaseMonkey Script

// ==UserScript==
// @name        google reader full feed changer
// @namespace   http://blog.fkoji.com/
// @include     http://www.google.*/reader/*
// @include     https://www.google.*/reader/*
// @version     0.71
// ==/UserScript==

var SITE_INFO = [
	{
        url:    'www.eeo.com.cn',
        xpath:  '(//div[@id="text_content"]|//div[@class="content link12hui"])',
    },
	{
        url:    'www.ftchinese.com',
        xpath:  '//div[@class="content"]',
    },
	{
        url:    'www.infoq.com',
        xpath:  '//div[@class="box-content-5"]',
    },
	{
        url:    'www.hbrchina.com',
        xpath:  '//div[@id="txtcontent"]',
        charset:   'gb2312'
    },
	{
        url:    'blog.sina.com.cn',
        xpath:  '//div[@id="articleBody"]',
    },
	{
        url:    'http://news.163.com',
        xpath:  '//div[@id="endText"]',
        charset:   'gb2312'
    }
/*
    {
        url: '',
        xpath: '',
        charset: ''
    }
*/
];
var AUTO_FETCH = false;
var SHOW_ENGLISH = false;
var DO_ONCE = true;
var ON_GET = false;
var FullFeed = {};
FullFeed.link = '';
FullFeed.getFocusedLink = function() {
    return getStringByXPath('//div[@id="current-entry"]//a[@class="entry-title-link"]/@href');
}
FullFeed.getCurrentEntry = function() {
    var link = this.getFocusedLink();
    this.link = link;
    var body = getFirstElementByXPath('//div[@id="current-entry"]//div[@class="entry-body"]');
    if (!body) {
        body= getFirstElementByXPath('//div[@id="current-entry"]//div[@class="entry-body entry-body-empty"]');
    }
    var source = '';
    if (location.href.match(/#stream\/user/)) {
        source = getStringByXPath('//div[@id="current-entry"]//a[@class="entry-source-title"]/@href');
    }
    else if (location.href.match(/#search\//)) {
        source = getStringByXPath('//div[@id="current-entry"]//a[@class="entry-source-title"]/@href');
    }
    else if (location.href.match(/#stream\/feed/)) {
        source = getStringByXPath('//span[@id="chrome-title"]//a/@href');
    }
    if (!source) {
        return false;
    }
    source = decodeURIComponent(source.replace(/^\/reader\/view\/feed\//, ''));
    var len = SITE_INFO.length;
    for (var i = 0; i < len; i++) {
        var reg = new RegExp(SITE_INFO[i].url);
        if (source.match(reg) || link.match(reg)) {
            this.request(i, link, body);
			lock();
            break;
        }
    }
};
FullFeed.request = function(i, link, body) {
    var mime = 'text/html; charset=';
    if (SITE_INFO[i].charset) {
        mime = mime + SITE_INFO[i].charset;
    } else {
        mime = mime + 'utf-8';
    }
    GM_xmlhttpRequest({method: "GET", url: link, overrideMimeType: mime, onload: function(r) {
        var text = r.responseText;
        text = text.replace(/(<[^>]*?)on(?:(?:un)?load|(?:db)?click|mouse(?:down|up|over|out|move)|key(?:press|down|up)|abort|blur|change|error|focus|re(?:size|set)|select|submit)\s*?=\s*?["'][^"']*?["']/ig, "$1");
		var show163 = true;
		if (link.match('163'))
		{
			var comment = text.match('var end_board.+;');
			if (comment == null)
			{
				show163 = false;
			} else {
				eval(comment[0]);
				var comments = new Array(end_board, end_thread, end_count);
			}
//			alert(comments.length);
//			var carray = "var comments = new " + comment.replace('reply_setHidden','Array');
//			eval(carray);
		}
        text = text.replace(/<\s*?script[^>]*?>[\s\S]*?<\s*?\/script\s*?>/ig, "");
        var htmldoc = createHTMLDocumentByString(text);
        var contents = getFirstElementByXPath(SITE_INFO[i].xpath, htmldoc);

        if (contents == null) return;

        while (body.firstChild && !SHOW_ENGLISH) {
            body.removeChild(body.firstChild);
        }
		if (link.match('ftchinese') && text.match('showenglish')) SHOW_ENGLISH = true;
        if (!contents.length) {
			if (SHOW_ENGLISH)
				body.insertBefore(addTargetAttr(relativeToAbsolute(contents, link)), body.firstChild);
			else
				body.appendChild(addTargetAttr(relativeToAbsolute(contents, link)));
			if (link.match('163') && show163){
				var pElement = document.createElement("a");
				pElement.setAttribute("target","_blank");
				pElement.setAttribute("style","color:#ba2636;text-decoration:none;font-size:12px;");
				pElement.setAttribute("href","http://comment.news.163.com/"+comments[0]+"/"+comments[1]+".html");
				pElement.innerHTML="跟帖 "+comments[2]+" 条";
				var eElement = pElement.cloneNode(true);
				body.insertBefore(pElement, body.firstChild);
				body.appendChild(eElement);
			}
			if (r.status == 200 && SHOW_ENGLISH && DO_ONCE) {FullFeed.request(i, link+"&lang=en", body);DO_ONCE = false;}
            return;
        }
        // array
        for (var num = 0; num < contents.length; num++) {
            body.appendChild(addTargetAttr(relativeToAbsolute(contents[num], link)));
        }
    }, onreadystatechange: function(r){if (r.status != 200) ON_GET = false; else ON_GET = true;}});
};

function initial(){
	setTimeout(initial,2000);
	if (ON_GET)
	{
		DO_ONCE = true;
		SHOW_ENGLISH = false;
	}
}
function relativeToAbsolute(node, link) {
    var imgs = getElementsByXPath('//img', node);
    if (imgs.length) {
        for (var i = 0; i < imgs.length; i++) {
            var src = imgs[i].getAttribute('src');
            if (src) {
                imgs[i].setAttribute('src', toAbsolutePath(src, link));
            }
        }
    }
	var anchor = getElementsByXPath('//a', node);
    if (anchor.length) {
        for (var i = 0; i < anchor.length; i++) {
            var href = anchor[i].getAttribute('href');
            if (href) {
                anchor[i].setAttribute('href', toAbsolutePath(href, link));
            }
        }
    }
    return node;
}
function addTargetAttr(node) {
    var anchors = getElementsByXPath('//a', node);
    if (!anchors) {
        return false;
    }
    for (var i = 0; i < anchors.length; i++) {
        anchors[i].setAttribute('target', '_blank');
    }
    return node;
}
function createHTMLDocumentByString(str) {
    var html = str.replace(/<!DOCTYPE.*?>/, '').replace(/<html.*?>/, '').replace(/<\/html>.*/, '')
    var htmlDoc  = document.implementation.createDocument(null, 'html', null)
    var fragment = createDocumentFragmentByString(html)
    htmlDoc.documentElement.appendChild(htmlDoc.importNode(fragment, true))
    return htmlDoc
}
function createDocumentFragmentByString(str) {
    var range = document.createRange()
    range.setStartAfter(document.body)
    return range.createContextualFragment(str)
}
function getStringByXPath(xpath, node) {
    var node = node || document
    var doc = node.ownerDocument ? node.ownerDocument : node
    var str = doc.evaluate(xpath, node, null,
        XPathResult.STRING_TYPE, null)
    return (str.stringValue) ? str.stringValue : ''
}
function getElementsByXPath(xpath, node) {
    var node = node || document
    var doc = node.ownerDocument ? node.ownerDocument : node
    var nodesSnapshot = doc.evaluate(xpath, node, null,
        XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null)
    var data = []
    for (var i = 0; i < nodesSnapshot.snapshotLength; i++) {
        data.push(nodesSnapshot.snapshotItem(i))
    }
    return (data.length >= 1) ? data : null
}
function getFirstElementByXPath(xpath, node) {
    var node = node || document
    var doc = node.ownerDocument ? node.ownerDocument : node
    var result = doc.evaluate(xpath, node, null,
        XPathResult.FIRST_ORDERED_NODE_TYPE, null)
    return result.singleNodeValue ? result.singleNodeValue : null
}
function toAbsolutePath(url, base) {
    // absolute path
    if (url.match(/^https?:\/\//)) {
        return url;
    }

    var head = base.match(/^https?:\/\/[^\/]+\//)[0];
    if (url.indexOf('/') == 0) {
        return head + url;
    }

    var basedir = base.replace(/\/[^\/]+$/, '/');
    if (url.indexOf('.') == 0) {
        while (url.indexOf('.') == 0) {
            if (url.substr(0, 3) == '../') {
                basedir = basedir.replace(/\/[^\/]+\/$/, '/');
            }
            url = url.replace(/^\.+\//, '');
        }
    }
    return basedir + url;
}
function getPageFromURL(url){
	return url.replace(/^https?:\/\/[^\/].+\//, '');
}

if (AUTO_FETCH) {
    var interval = window.setInterval(
        function() {
            var focusedLink = FullFeed.getFocusedLink();
            if (focusedLink != FullFeed.link) {
                FullFeed.getCurrentEntry();
            }
        },
        500
    );
}

document.addEventListener(
    'keydown',
    function(event) {
        var key = String.fromCharCode(event.keyCode);
        if (key.toLowerCase() == 'z') {
            FullFeed.getCurrentEntry();
        }
    },
    false
);

document.addEventListener(
    'keydown',
    function(event) {
        var key = String.fromCharCode(event.keyCode);
		var name = "chrome-lhn-toggle";
        if (key.toLowerCase() == 'q') {
			var evt = document.createEvent("MouseEvents");
			evt.initEvent("click", true, true);
			document.getElementById(name).dispatchEvent(evt);
        }
    },
    false
);

document.addEventListener(
    'keydown',
    function(event) {
        var key = String.fromCharCode(event.keyCode);
		var name = "show-new";
		var showNew = document.getElementById("show-new");
		var showAll = document.getElementById("show-all");
        if (key.toLowerCase() == 'w') {
			var evt = document.createEvent("MouseEvents");
			evt.initEvent("click", true, true);
			if (showNew.className=="unselectable link"){
				showNew.dispatchEvent(evt);
			}else{
				showAll.dispatchEvent(evt);
			}
			
        }
    },
    false
);

initial();