The jQuery documentation says that you can call datepicker with this command:
$("#datepicker").datepicker();
If you click the "View Source" button on the documentation page, you will see that they wrapped it in a ready-made function:
$(document).ready(function(){
$("#datepicker").datepicker();
});
EDIT: INPUT (, Steerpike). , , , :
<html>
<head>
<link type="text/css" href="http://jqueryui.com/latest/themes/base/ui.all.css" rel="stylesheet" />
<script type="text/javascript" src="http://jqueryui.com/latest/jquery-1.3.2.js"></script>
<script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.core.js"></script>
<script type="text/javascript" src="http://jqueryui.com/latest/ui/ui.datepicker.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$("#datepicker").datepicker();
});
</script>
</head>
<body>
<input type="text" id="datepicker" value="this is a test">
</body>
</html>