Not an answer to your question, but we used free Popup Calendar called PopCalendar if memory servers well.

Hopefully you can find it on the web.

>Hi all,
>
>I am trying to create a DatePicker using the PopupControlExtender and have found lots of examples. I did this successfully just like the code below without the tables and without this page being inside an ASPContentHolder (Master Page). This code is exactly alike except for the master page, and tables. It works in the sample I did but not in my app with this code. When I navigate to the page, I get the calendar showing when it shouldn't be until clicking in one of the textboxes and the textboxes are not linked to it. Anyone got any ideas why it wouldn't work in this situation?
>Thanks
>Tim
>

>
><table cellpadding="5" style="width: 100%">
>    <tr>
>        <td>
>            <mm:mmLabel ID="lblTruckSelect" runat="server" AccessLevel="Full" 
>                BindingProperty="Text" BindingSource="" BindingSourceMember="" 
>                ControlID="00000000-0000-0000-0000-000000000000" DisplayFormat="" 
>                IsPostBack="False" SecuritySetup="True" Text="Truck Code:" UserFieldName="" />
>        </td>
>        <td style="text-align: left">
>            <mm:mmDropDownList ID="cboTruckSelect" runat="server" Width="150px" />
>        </td>
>        <td>
>            <mm:mmLabel ID="lblGroupSelect" runat="server" AccessLevel="Full" 
>            BindingProperty="Text" BindingSource="" BindingSourceMember="" 
>            ControlID="00000000-0000-0000-0000-000000000000" DisplayFormat="" 
>            IsPostBack="False" SecuritySetup="True" Text="Group Code:" UserFieldName="" />
>        </td>
>        <td style="text-align: left">
>            <mm:mmDropDownList ID="cboGroupSelect" runat="server" Width="150px" />
>        </td>
>    </tr>
>    <tr>
>        <td>
>            <mm:mmLabel ID="lblDateSelect" runat="server" AccessLevel="Full" 
>                BindingProperty="Text" 
>                ControlID="00000000-0000-0000-0000-000000000000" 
>                IsPostBack="False" SecuritySetup="True" Text="Beginning Date:" />
>        </td>
>        <td style="text-align: left">
>            <mm:mmTextBox ID="txtBeginDate" runat="server" Width="150px" />
>            <cc1:PopupControlExtender ID="txtBeginDate_PopupControlExtender" runat="server" 
>                DynamicServicePath="" Enabled="True" ExtenderControlID="" 
>                TargetControlID="txtBeginDate" PopupControlID="pnlCalendar" Position="Bottom" />
>        </td>
>        <td>
>            <mm:mmLabel ID="mmLabel1" runat="server" AccessLevel="Full" 
>                BindingProperty="Text" BindingSource="" BindingSourceMember="" 
>                ControlID="00000000-0000-0000-0000-000000000000" DisplayFormat="" 
>                IsPostBack="False" SecuritySetup="True" Text="Ending Date:" UserFieldName="" />
>        </td>
>        <td style="text-align: left">
>            <mm:mmTextBox ID="txtEndDate" runat="server" Width="150px" />
>            <cc1:PopupControlExtender ID="txtEndDate_PopupControlExtender" runat="server" 
>                DynamicServicePath="" Enabled="True" ExtenderControlID="" 
>                TargetControlID="txtEndDate" PopupControlID="pnlCalendar" Position="Bottom" />
>        </td>
>    </tr>
>    <tr>
>        <td>
>            <mm:mmLabel ID="lblTimeRange" runat="server" AccessLevel="Full" 
>                BindingProperty="Text" BindingSource="" BindingSourceMember="" 
>                ControlID="00000000-0000-0000-0000-000000000000" DisplayFormat="" 
>                IsPostBack="False" SecuritySetup="True" Text="Time Range" UserFieldName="" />
>        </td>
>        <td style="text-align: left" colspan="2">
>            <mm:mmDropDownList ID="cboTimeRange" runat="server" Width="350px" />
>        </td>
>        <td>
>            <mm:mmButton ID="btnRetrieve" runat="server" Text="Retrieve" Width="111px" 
>                onclick="btnRetrieve_Click" />
>        </td>
>    </tr>
></table>
></center>
></div>
>	
><asp:Panel ID="pnlCalendar" runat="server">
>    <asp:UpdatePanel ID="upCal" runat="server">
>        <ContentTemplate>
>            <asp:Calendar ID="calSelectDate" runat="server" 
>                OnSelectionChanged="calSelectDate_SelectionChanged" />
>        </ContentTemplate>
>    </asp:UpdatePanel>
></asp:Panel>
>