Try to Take all over the World
// ==UserScript==
// @name 京东会员签到
// @namespace https://greasyfork.org/zh-CN/users/75882-qq50941544
// @version 20161026
// @description Try to Take all over the World
// @author QQ50941544
// @match http://tampermonkey.net/scripts.php
// @grant none
// @include *//vip.jd.com/*
// ==/UserScript==
var list = document.getElementsByClassName("btns")[0];
list.getElementsByClassName("signup-btn")[0].click();