Jquery datepicker not working with IE6

Question

I am using this jquery code for datepicker in my website. Now the problem is date selection is not working with IE6 however it is perfectly working with newer versions of IE.
I am using:
jQuery JavaScript Library v1.7
jQuery UI 1.8.4

<script src="../Script/![enter image description here][1]jquery.datepicker/js/jquery.date-picker.min.js" type="text/javascript"></script>
<link href="../Script/jquery.datepicker/css/smoothness/jquery-ui-datepicker.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
    $(document).ready(function () {
        $("#<%= DateSelected.ClientId%>").datepicker({ showButtonPanel: true, closeText: 'X', dateFormat: "<%=UtilityFunctions.GetDateFormat(Page) %>" });
        $(".imgBtn").click(function (event) {
            var pos = $(event.currentTarget).position();
            $("#<%= DateSelected.ClientId%>").datepicker("show");
            $("#ui-datepicker-div").css("left", pos.left);
            $("#ui-datepicker-div").css("top", pos.top + 30);
        });
    });

<asp:Image alt="Calendar" Runat="server" ID="calendarHeader" ImageUrl="~/images/calendar.png" Width="24" height="24" class="imgBtn" />

Answer 1

Change following images into .Gif and it would start working.
ui-icons_222222_256x240.png
ui-icons_454545_256x240.png
ui-icons_888888_256x240.png