New Post: Date Picker problem

hi robax
i have solve this issue.
i should have put this:
<script type="text/javascript" src="/DesktopModules/NB_Store/js/jquery-ui-1.8.11.nbstore.min.js"></script>

<link rel="Stylesheet" href="/DesktopModules/NB_Store/js/jquery-ui-1.8.11.nbstore.css" />
<script language='javascript' type='text/javascript'>
    jQuery(document).ready(function () {
        jQuery(".date-picker").datepicker({ dateFormat: 'dd/mm/yy' });
    });

</script>

at the head of default.aspx .
now its fine' i love it.

thanks a lot