When you find a wonderful movie in douban, this script will automatic search its torrent from bt.byr.cn.

douban_bt.user.js

// ==UserScript==
//
// @name           byr_bt 
// @description    Search movies on bt which you see in douban
// @namespace      http://bt.byr.cn/
// @author         joest(chaojiong.zheng@gmail.com)
// @license        GNU GPL v3 (http://www.gnu.org/copyleft/gpl.html) 
// @version        1.0
// @include        http://movie.douban.com/subject/*
//
// @require        https://ajax.googleapis.com/ajax/libs/jquery/1.6.0/jquery.min.js
//
//
// ==/UserScript==


var searchurl='http://bt.byr.cn/torrents.php?';

// 可以通过安装查看cookie的插件获得
var c_secure_uid=""
var c_secure_pass=""
var c_secure_login=""


function insertloading(){
    var htmlstr = '<div id="btinfo" class="gray_ad"><h2>北邮人BT查询</h2></div>';
    $('.aside').prepend(htmlstr);
}

//获取title
function page_subject(){
    //insert load info
    insertloading();
	// get movie name
	title = $('h1>span').text();
    var stop = title.indexOf(' ');
    if (stop == -1)
    {
        stop = title.indexOf('(');
    }
    if (stop != -1)
    {
        title = title.substring(0, stop);
    }

    searchurl += "incldead=0&spstate=0&inclbookmarked=0&search=" + title +"&search_area=0&search_mode=0";
    getMovieInfo();
}

function getMovieInfo(){
   setTimeout(function(){GM_xmlhttpRequest({
    method: 'GET',
    url: searchurl,
    headers: {
        "Content-Type": "application/x-www-form-urlencoded;charset=UTF-8",
        "Cookie": 'c_secure_uid=' + c_secure_uid + '; c_secure_pass=' + c_secure_pass + '; c_secure_login=' + c_secure_login
    },
    onload: function(responseDetails) {
        var responses=responseDetails.responseText;
        var strHtml=null;
        if(responses.indexOf("没有种子") != -1)
        {
            strHtml = "没有种子</br>";
        }
        else
        {
            var link = searchurl;
            strHtml = "有种子   =>  <a href='" + link + "' target='_blank'>详情</a></br>";
        }
        appendInfo(strHtml);
        }
})},500);
}

function appendInfo(value){
    $("#btinfo").append(value);
}

$(document).ready(function(){
    page_subject();
});