Hỏi về javascript [Lưu Trữ]

kazekage315

09-12-2009, 10:22 AM

Mình mới học javascript nên trình còn kém . Bạn nào giỏi xin chỉ mình với

Đề bài nó như thế này :
Kiểm tra tất cả yêu cầu của các ô ko đc để trống
kiểm tra các địa chỉ email có chứa 1 ký tự @ và 1 dấu chấm
mã postcode cần chứa 4 chữ số .

mình dùng function và document.getElementById nhưng nó vẫn ko ra :(:2T-bunny-(22):

Đoạn code của mình . Sửa giúp mình nha :) .

<html>
<head>
<script language ="javascript">
function test()
{
var inputCheck = document.getElementById ("enter").value;
if (inputCheck.length !=4 ||) { alert ("ERROR");
document.getElementById("numberCheck").select();
document.getElementById("numberCheck").focus();
}
else
alert ("Continous");
}

function checkEmail() {
var email = document.getElementById(’emailaddress’);
var filter = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filter.test(email.value)) {
alert("Try again.");
email.focus;
return false;
}
}
</script>
<body>
<form>
<p>
Postcode: <input type ="inputCheck" id="enter"><br>
<input type = "button" value="submit" onclick="test()">

<LABEL>E-mail:</LABEL></td>
<input type = "text" id ="emailadress" >

</p>
</form>
</body>
</head>
</html>

Thank nhìu

MacTrucVy

10-12-2009, 01:41 PM