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<html>
    <head>
        <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js">
        <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">

        <link rel="stylesheet" href="css/bootstrap-datepicker.css">
        <script src="js/bootstrap-datepicker.min.js"></script>
        <script src="locales/bootstrap-datepicker.es.min.js"></script>
    </head>
    <script type="text/javascript">
        $('.datepicker').datepicker({
            format: 'mm/dd/yyyy'
        });
    </script>
    <body>
        <div class="container">
            <div class="input-group date">
                <input type="text" id="datepicker" class="form-control">
                <div class="input-group-addon">
                    <span class="glyphicon glyphicon-th"></span>
                </div>
            </div>
        </div>
    </body>
</html>