Hello,
You can do this as follows.
<head>
<link href="../../css/jquery-ui1.css" rel="stylesheet" type="text/css" />
<link href="../../css/calender.css" rel="stylesheet" type="text/css" />
<script src="../../jquery/prototype.js" type="text/javascript"></script>
<script src="../../jquery/jquery-1.9.1.js" type="text/javascript"></script>
<script src="../../jquery/jquery-ui1.js" type="text/javascript"></script>
<script src="../../jquery/CalendarDateSelect.js" type="text/javascript"></script>
<script src="../../jquery/format_iso_date.js" type="text/javascript"></script>
<script language="javascript">
</script>
var $j = jQuery.noConflict();
</head>
Then, use jQuery as $j() and Prototype's $().
More infor can be found in
JQuery Documentation[
^]
Regards,