After updating ajaxtoolkit version controls are not working

Hi,

We have migrated the Ajaxtoolkit version from 3.5.60501 to 3.5.7.429 in our application, but after updating the ajaxtoolkit version we are not able to get calender while using calender extender.

Following code we used for calender extender:

< td align="left">

<asp:TextBox ID="dateOfBirth" runat="server" Columns="11" MaxLength="11"></asp:TextBox>

<asp:ImageButton ID="ImageButtonCalendarDateOfBirth" runat="server" SkinID="ImageButtonCalendar"

CausesValidation="False" />

<asp:CustomValidator ID="CustomValidatorDateOfBirth" runat="server" ErrorMessage="<%$ Resources:ErrorResource, DateOfBirthFormat %>"

OnServerValidate="ValidateDob" SetFocusOnError="True">*</asp:CustomValidator>

<cc1:CalendarExtender ID="CalendarExtender1" runat="server" PopupButtonID="ImageButtonCalendarDateOfBirth"

TargetControlID="dateOfBirth" Format="dd/MM/yyyy" FirstDayOfWeek="monday">

</cc1:CalendarExtender>

<cc1:MaskedEditExtender ID="MaskedEditExtender2" runat="server" AutoCompleteValue="0"

ErrorTooltipEnabled="True" Mask="99/99/9999" PromptCharacter="_" TargetControlID="dateOfBirth"

ClearMaskOnLostFocus="true" MaskType="Date" UserDateFormat="DayMonthYear" CultureName="fr-FR">

</cc1:MaskedEditExtender>

</td>

Thanks