Ajax:CalendarExtender ( Date Issue)

Hi,

I have used Ajax:CalendarExtender in my application and I am trying to validate it by using asp:CompareValidator for "dd/mm/yyyy" format it works fine with my local machine as it has "dd/mm/yyyy" format. But when we upload it on Server having "mm/dd/yyyy" format, My validation goes down.

For example .. I enter date as 21/06/2013 on my local machine it works fine .. BUT if I enter same date on server it shows error.

Following is my Code..

 <td>
                            <asp:TextBox runat="server" ID="txtAnniversary" CssClass="textbox" Style="width: 160px;"
                                MaxLength="10"> </asp:TextBox>
                            <asp:Image ID="imgAnniversary" runat="server" ImageUrl="~/Images/DatePicker.png"
                                Style="vertical-align: bottom;" />
                            <Ajax:CalendarExtender ID="CalendarExtender1" runat="server" TargetControlID="txtAnniversary"
                                PopupButtonID="imgAnniversary" PopupPosition="BottomLeft" Format="dd/MM/yyyy">
                            </Ajax:CalendarExtender>
 </td>

<td>

                            <asp:CompareValidator ID="CompareValidator1" runat="server" ControlToValidate="txtAnniversary"
                                Operator="DataTypeCheck" Type="Date" ValidationGroup="ValidateCustomer"
                                ErrorMessage="Please enter date in proper format(dd/mm/yy)" CssClass="failureNotification"
                                Display="Dynamic"></asp:CompareValidator>

</td>

Thanking You.