A JavaScript library used by JoeSimmons
此腳本不應該直接安裝，它是一個供其他腳本使用的函式庫。欲使用本函式庫，請在腳本 metadata 寫上： // @require https://update.greasyfork.org/scripts/1885/7915/JoeSimmons%27%20Library.js
JSL is a lightweight library that functions similar to jQuery. It is extendable via JSL.fn
It can be used for web pages, and also user-script extensions, like Greasemonkey.
It works in browsers that support ECMAScript-5 (e.g., Firefox 3.6+, Chrome latest, etc).
For API documentation, check the methods page.
.inView or a similar method to determine if an element is in the browser's viewport