<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>无标题页</title>
<script type="text/javascript">
function addtextarea(){
var parent=document.getElementById("content");
var el=document.createElement("TextArea");
el.name=el.id="textarea"+parent.childNodes.length;
parent.appendChild(el);