Date Picker

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="jquery-ui.css">
    <script src="jquery.js"></script>
    <script src="jquery-ui.js"></script>
</head>
<body>
<label>Enter a date:</label>
<input id="date"></br>
<script src="main.js">
    $(document).ready(function () {
        $("#date").datepicker();
    })
</script>
</body>
</html>