JavaScript 实现无刷新评论功能示例

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无刷新评论</title>
<script type="text/javascript">
function AppendComment() {
 //获取昵称文本框的值
 var nicknameValue = document.getElementById("nickName").value;
 //获取评论文本框的值
 var commentValue = document.getElementById("comment").value;
 var tblComment = document.getElementById("tblComment");
 var tr = tblComment.tBodies[0].insertRow(-1);
 var tdNickName = tr.insertCell(-1);
 tdNickName.innerHTML = nicknameValue;
 var tdComment = tr.insertCell(-1);
 tdComment.innerHTML = commentValue;
}
</script>
</head>
<body>
 本站<br />
 里面有丰富的脚本教程，欢迎访问
 <p>评论</p>
 <table id="tblComment" border="1">
 <tbody>
 <tr><td>李莫:</td><td>非常好的网站</td></tr>
 </tbody>
 </table>
 昵称:<input type="text" id="nickName" /><br />
 评论:<textarea id="comment"></textarea><br />
 <input type="button" value="评论" onclick="AppendComment()" />
</body>
</html>