js:不支持此属性或方法
点击 "彻底删除按钮 ":出现错误!脚本提示 "不支持此属性或方法 ",位置在按纽地方.
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<%@ page contentType= "text/html;charset=GB2312 " %>
<%request.setCharacterEncoding( "gb2312 ");%> <!--中文处理代码-->
<html>
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> 显示接收的邮件 </title>
<style>
</style>
<script language= "text/javascript ">
function delPer()
{
document.form1.action= "doMail.jsp?tag=delPer ";
document.form1.submit();
}
</script>
</head>
<body>
<form id= "form " action= "search.jsp " method= "post " name= "search ">
<table width= "780 " border= "0 " cellspacing= "0 " cellpadding= "0 ">
<tr>
<td> <%=boxName%> </td>
<td> <label>
<div align= "right ">
<input type= "hidden " name= "boxType " value= " <%=b%> ">
<input name= "keyword " type= "text " maxlength= "50 ">
<input type= "submit " name= "Submit " value= "搜索 ">
</div>
</label> </td>
</tr>
</table>
</form>
<form name= "form1 " method= "post " action= " ">
<table width= "780 " border= "1 " cellpadding= "0 " cellspacing= "0 ">
<tr>
<td> <table width= "780 " border= "0 " cellspacing= "0 " cellpadding= "0 ">
<tr>
<td width= "678 ">
<label>
<input type= "button " value= "彻底删除 " onClick= "delPer() "> //就这里
</label>
<label>
<input name= "del " type= "button " id= "del " value= &qu