这是一个脚本库能够让你在自己的页面上使用 HTML 5 的强大特性，而不用担心客户端是否支持 HTML。

支持列表如下：

Mozilla Firefox 1.0.8

Mozilla Firefox 1.5.0.9

Mozilla Firefox 2

Internet Explorer 6

Internet Explorer 7

Safari 2.0.4

Safari 3(Windows)

Opera 9(native experimental implementation)-A cross-browser implementation of the WHATWG Web Forms 2.0 specification. This specification is currently a mature working draft and has been adopted by the W3C HTML Working Group to serve as a starting point for the next version of HTML. This implementation will follow the HTML 5 specification that evolves from the W3C process.