Ajax在线提交留言并实时显示的js代码[修正版]

2009年11月30日作者：

学习Ajax提交的朋友，不妨参考一下吧，从中你会明白一些技巧吧。
因代码本身的问题，来客网已经修正，欢迎大家测试。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>Ajax留言本</title> 
<style type="text/css"> 
* { padding: 0; margin: 0; } 
li { list-style: none; } 
body { background: #f9f9f9; font-size: 14px; } 
#explain { height: 60px; border-bottom: 1px solid #999999; background: #eee; font-size: 14px; color: #666; text-align: 
center; line-height: 60px; } 
#explain a { color: #990000; font-weight: bold; text-decoration: none; border-bottom: 1px dotted #990000; } 
#explain a:hover { border-bottom: 2px solid #990000; } 
#explain strong { color: #990000; } 
#box { width: 450px; padding: 10px; border: 1px solid #ccc; background: #f4f4f4; margin: 10px auto; } 
#fill_in { margin-bottom: 10px; } 
#fill_in li { padding: 5px 0; } 
#fill_in .text { width: 380px; height: 30px; padding: 0 10px; border: 1px solid #ccc; line-height: 30px; font-size: 14px; 
font-family: arial; } 
#fill_in textarea { width: 380px; height: 100px; line-height: 20px; padding: 5px 10px; border: 1px solid #ccc; font-size: 
14px; font-family: arial; overflow: auto; vertical-align: top; } 
#fill_in .btn { border: none; width: 100px; height: 30px; border: 1px solid #ccc; background: #fff; color: #666; font-size: 
14px; position: relative; left: 42px; } 
#message_text { display: none; } 
#message_text h2 { font-size: 14px; padding: 6px 0 4px 10px; background: #ddd; border-bottom: 1px solid #ccc; } 
#message_text li { background: #f9f9f9; border-bottom: 1px solid #ccc; color: #666; overflow: hidden; } 
#message_text h3 { padding: 10px; font-size: 14px; line-height: 24px; } 
#message_text p { padding: 0 10px 10px; text-indent: 28px; line-height: 20px; } 
</style> 
 
</head> 
<body> 
<div id="explain"> 
不妨多提交几次留言试试看……</pre> 
<div id="box"> 
<ul id="fill_in"> 
<form> 
<li>姓名：<input id="text" type="text" class="text" /></li> 
<li>内容：<textarea id="content" style="width:300px; height:100px"></textarea></li> 
<li><input id="btn" type="submit" value="提交" class="btn" /></li> 
</form> 
</ul> 
<div id="message_text"> 
<h2>显示留言</h2> 
<ul></ul> 
</pre> 
</pre> 
</body> 
</html>