JavaScript实现同一页面内两个表单互相传值的方法

<html>
<head>
<title>JavaScript同一页面两个表单互相传值</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<script language="JavaScript">
function ok()
{
 document.form2.textfield2.value=document.form1.textfield.value;
}
function ok1()
{
document.form1.textfield.value=document.form2.textfield2.value;
}
</script>
<body>
<form name="form1" method="post" action="">
 <input type="text" name="textfield">
 <input type="button" name="Submit" value="A表单->传值给B表单" onClick="ok()">
</form>
<form name="form2" method="post" action="">
 <input type="text" name="textfield2">
 <input type="button" name="Submit" value="B表单->传值给A表单" onClick="ok1()">
</form>
</body>
</html>