从以前版本升级至HTML5，需要改变的几个地方；
- Doctype声明的改变
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
HTML5
<!doctype html>
- Meta声明的改变
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
HTML5
<meta charset="utf-8">
- 样式声明的改变
<link type="text/css" rel="stylesheet" href="default.css">
HTML5
<link rel="stylesheet" href="default.css">
- Javascript声明的改变
<script type="text/javascript" src="webpick.js"></script>
HTML5
<script src="webpick.js"></script>