jQueryUI 1.8.14 Autocomplete

HTML

<script src="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.14/jquery-ui.min.js"></script>
<link rel="stylesheet" href="http://ajax.aspnetcdn.com/ajax/jquery.ui/1.8.14/themes/black-tie/jquery-ui.css">
<input type="text" id="date" class="hidden" />
<button id="show-date">Choose Date</button>

CSS

.hidden { display: none; }

JavaScript

$("#date").datepicker();

$("#show-date").click(function () {
    $("#date").datepicker("show");
});