10.html

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>sign up</title>
</head>
<body>
    <form name="해당 폼의 이름" action="값을 보낼 주소" method="post 방식인지 get 방식인지">
        <table>
            <tr>
                <td>이름</td>
                <td><input type="text" name="user_name" /></td>
            </tr>
            <tr>
                <td>아이디</td>
                <td><input type="text" name="user_id" /></td>
            </tr>
        </table>
    </form>
    <input type="button" value="확인" onclick="showPopup();" />
    <script language="javascript">
        function showPopup() { window.open("6.html", "a", "width=400, height=300, left=100, top=50"); }
        </script>
      <a href="indexm.html">Home</a>
</body>
</html>