controls in 2 different panels doesn't show data

Hi,
in my application iam using gaia panel.in one panel there is a dropdownlist and 2 textboxes. in second panel other 2 textboxes.on dropdown onsectindexchanged event iam taking data from database and display in text boxes. the text boxes showing data is iside the panel which contains dropdown list.remaining 2 textboxes in other panel doesn't show any data.

first panel.

<gaia:ExtendedPanel ID="expTourDetail" runat="server" CssClass="gaiax" Collapsed="false" Height="280px" Width="258px">
<gaia:TextBox ID="txtTourCode" runat="server" Width="130px" CssClass="TextStyle"
Enabled="false" MaxLength="20" />
<gaia:DropDownList ID="Ddlpackagecode" AutoPostBack="true" runat="server" OnSelectedIndexChanged="Ddlpackagecode_SelectedIndexChanged" Width="120px"></gaia:DropDownList>
</gaia:ExtendedPanel>


second panel.

<gaia:ExtendedPanel ID="expFlightDetails" runat="server" AnimationDuration="200" Height="718px" Width="258px">






<input type="text" id="txtDepartOn" name="txtDepartOn" style="background-color: #eeeeee;
width: 80px;" runat="server" />




</gaia:ExtendedPanel>
when the dropdown fires only txttourd showing data.
but txtdeparton doesn't show any data


any way to solve this problem


Regards

K L BAIJU