<asp:TextBox ID="txtActDate" runat="server" CssClass="textSmallmand"></asp:TextBox><ajax:CalendarExtender ID="calActDate" runat="server" TargetControlID="txtActDate" PopupButtonID="imgCal" Format="dd/mm/yyyy"></ajax:CalendarExtender><asp:ImageButton ID="imgCal" runat="server" Height="19px" ImageUrl="~/date_picker2.gif" Width="34px" CausesValidation="False" />