How to use jquery calendar in asp.net.

Question

How to use jquery calendar in asp.net.       <title>title> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6/jquery.min.js" type="text/javascript">script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/jquery-ui.min.js" type="text/javascript">script> <link href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8/themes/base/jquery-ui.css" rel="Stylesheet" type="text/css"/> <script type="text/javascript"> $(function () { $("[id$=txtDate]").datepicker({ showOn: 'button', buttonImageOnly: true, buttonImage: 'http://jqueryui.com/demos/datepicker/images/calendar.gif' }); }); script>     This code is not working.