Untitled

<html lang="en">
<head>
    <meta charset="utf-8"/>
    <title> Sign up </title>
    <link rel="stylesheet" href="dangki.css" type="text/css">
</head>
<body>
    <div id="container">
    <form name="contact" onsubmit="return CheckForm();" method="post" class="contact" style="font-family: Comic Sans MS">
    <h2 align="center" style="color:black; font-size: 70px" > Create an account </h2>
        <ul align="center">
            <li>
                <label for="name"> Username <span class="required" class="required">*</span></label>
                <input id="name" name="name" type="text" class="text" tabindex="1"/>
                <p class="hide error" id="name-error"></p>
            </li>
            <li>
                <label for="email"> Email address <span class="required" class="required">*</span></label>
                <input id="email" name="email" placeholder="you@gmail.com" type="text" class="text" tabindex="1"/>
                <p class="hide error" id="email-error"></p>
            </li>
            <li>
                <label for="pass"> Password <span class="required" class="required">*</span></label>
                <input id="pass" name="pass" type="text" class="text" tabindex="1"/>
                <p class="hide error" id="pass-error"></p>
            </li>
            <li>
                <input type="submit" name="create an account" value="Createanaccount" class="btn-primary" style="margin-right: 20px" onclick="Createanaccount()"/>
                <input type="reset" name="delete" value=" Delete" class="btn1-primary" style="margin-right: 15px" onclick="Delete()"/>
            </li>
        </ul>
    </form>
    </div>
    <script>
    function CheckForm(){
        var user, email, pass, a=document.contact;
        if(a.name.value==""){
            document.getElementById("name-error").style.display='block';
            document.getElementById("name-error").innerHTML='Vui lòng nhập họ tên';
            a.name.focus();
            return false;
        } else document.getElementById("name-error").style.display='none';
        if(a.email.value==""){
            document.getElementById("email-error").style.display='block';
            document.getElementById("email-error").innerHTML='Vui lòng nhập email';
            a.email.focus();
            return false;
        } else document.getElementById("email-error").style.display='none';
        if(a.pass.value==""){
            document.getElementById("pass-error").style.display='block';
            document.getElementById("pass-error").innerHTML='Vui lòng nhập password';
            a.pass.focus();
            return false;
        } else document.getElementById("pass-error").style.display='none';
            return true;
        }

        user= contact.name.value;
        email=contact.email.value;
        pass=contact.pass.value;
        alert("Tài khoản đã được tạo");

    function Delete()
        {
            Delete.user.value="0";
            Delete.email.value="0";
            Delete.pass.value="0";
        }
    </script>
</body>
</html>