Problem in dropDown

         
<asp:LinkButton ID="LinkButton2" runat="server">LinkButton</asp:LinkButton>
             <asp:Panel id="SearchPanel" class="searchpnl" runat="server">
                <script language="javascript" src="FbjavaScript/DynamicOptionList.js"></script>
                <script src="FbjavaScript/courseSpec.js"></script>
  <asp:Button ID="btnSearch" runat="server" Text="Search" OnClick="btnSearch_Click" />
  </asp:Panel>
            <cc2:Collapsib ...