Untitled

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script>
$(document).ready(function() {
    $(':input[type="submit"]').prop('disabled', true);
     $('input[type="email"]').keyup(function() {
        if($(this).val() != '') {
           $(':input[type="submit"]').prop('disabled', false);
        }
     });
    $('#loginButton').click(function() {
        var ValidUser = $('#usernameInput').val() === 'admin@company.com';
        var ValidPassword = $('#passwordInput').val() === 'dogcat';
        if (ValidEmail === true && ValidPassword === true)
        {
            alert("Login Successful");
        }
        else
        {
            alert("Incorrect Username/Password");
        }
    });
});
</script>

<title>Login</title>

</head>

<body>
<div id="loginMenu">
<span>
<form id="formLogin" name="login">
<Label>Username:</Label>
<br/>
<input id="usernameInput" name = "username" type="email" required="required">
<br/>
<label>Password:</label>
<br/>
<input id="passwordInput" name="password" type="password" required="required">
<br/>
<input id="loginButton" type="submit" value="Log In">
</form>
</span>
</div>
</body>
</html>