Bootstrap Disable Enable button jQuery

<html>
<head>
<title>Bootstrap Grid</title>
<!-- Latest compiled and minified CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css">

<!-- Optional theme -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<!-- Latest compiled and minified JavaScript -->
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.2/js/bootstrap.min.js"></script>
<script type="text/javascript">
function enable(){
$("#myBtn").removeAttr("disabled");
$('#myBtn').removeClass('disabled');
}
</script>
</head>
<body>

<input type="button" class="btn btn-danger disaabled" disabled id="myBtn" value="Disabled Button" />
<br>

<input type="button" class="btn btn-danger " onclick="enable()" id="myBtn" value="Enable Button" />

</body>
</html>