asp.net ModalPopupExtender not behaving properly

asp.net ModalPopupExtender not behaving properly



I have the following code on a .aspx file:

<cc1:ModalPopupExtender BehaviorID="mdlPopup" runat="server"

TargetControlID="btn"

ID="mdl1" PopupControlID="pnlPopup" OkControlID="LinkButton1"

BackgroundCssClass="modalBackground" />

<asp:Panel ID="pnlPopup" runat="server" CssClass="confirm-dialog"

Style="display: none;">

<div class="inner">

Work Order #: <asp:TextBox ID="txtWorkOrder" runat="server"

Width="285" Text=""></asp:TextBox><br /><br />

Please Enter Corrective Actions<br />

<asp:TextBox ID="TextBox2" runat="server" Height="150"

Width="285" TextMode="MultiLine"

Text=""></asp:TextBox>

<asp:Button ID="btnOK" runat="server" Font-Bold="true"

Text="Submit" OnClick="click"

Width="150" />

<asp:LinkButton ID="LinkButton1" runat="server"

CssClass="close" OnClick="cancel" />

</div>

</asp:Panel>

<asp:Button ID="btn" runat="server" Style="display: none;" />

<asp:Label ID="id" runat="server" Text="Label"

Visible="false"></asp:Label>

The problem that I am having is that the page just hangs when I have this

code in the .aspx file. Is there anything I should do. It does not even

get to the Page_Load.

I am calling this page that has the above code with the following:

string url = "Alerts.aspx?";

url += "ID=" + id.Text;

Response.Redirect(url);