check function in javascript when making join in form table / 자바스크립트로 회원가입창 만들기
<body> <form method="post" action="memRegProc.php" name="frm1"> <table border="1" sellspacing="0" width="500"> <tr> <td colspan="2" align="center" bgcolor="pink">회원가입</td> </tr> <tr> <td>아이디</td> <td> <input type="text" name="id" id="id" value="id"> <input type="button" value="중복확인" onclick="popup()"> </td> </tr> <tr> <td>암호</td> <td><input type="password" name="pw"></td> </tr> <tr> <td>이름</td> <td><input type="text" name="name"></td> </tr> <tr> <td>이메일</td> <td><input type="text" ...