bootstrap modal box is not working in internet explorer

<a data-toggle="modal" runat="server" href="#example" id="btn" class="btn-primary" >SetLob</a>
           &nbsp;&nbsp;&nbsp;<asp:Button ID="btnsubmit" runat="server" Text="submit"
                CssClass="btn-primary" onclick="btnsubmit_Click" />


          <div class="modal hide fade" id="example">
  <div class="modal-header">
    <button type="button" id="b2" class="close" data-dismiss="modal" aria-hidden="true" runat="server">&times;</button>

    <h3>LOB Customization</h3>
  </div>

  <div class="modal-body">
  <asp:UpdatePanel ID="update1" runat="server" UpdateMode="Conditional">
           <ContentTemplate>
    <asp:GridView ID="gridlob" runat="server" AutoGenerateColumns="False"
        DataSourceID="SqlDataSource2" width="50%"
          onrowdatabound="gridlob_RowDataBound">
        <Columns>
            <asp:BoundField DataField="LOUPe_LOB" HeaderText="Line Of Bussiness"
                SortExpression="LOUPe_LOB" />

               <asp:TemplateField HeaderText="Grouping">


              <ItemTemplate>
              <asp:CheckBox ID="chkReimbursable" runat="server" OnCheckedChanged="chkReimbursable_CheckedChanged" AutoPostBack="true"   />

              </ItemTemplate>

             </asp:TemplateField>

        </Columns>

        <EditRowStyle BackColor="#2461BF" />
        <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
        <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
        <RowStyle BackColor="#EFF3FB" />
        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
        <SortedAscendingCellStyle BackColor="#F5F7FB" />
        <SortedAscendingHeaderStyle BackColor="#6D95E1" />
        <SortedDescendingCellStyle BackColor="#E9EBEF" />
        <SortedDescendingHeaderStyle BackColor="#4870BE" />



    </asp:GridView>
    <asp:SqlDataSource ID="SqlDataSource2" runat="server"
        ConnectionString="<%$ ConnectionStrings:LOUPe_InventoryConnectionString %>"
        SelectCommand="procExcelLOBGroupList" SelectCommandType="StoredProcedure">
    </asp:SqlDataSource>
   </ContentTemplate>
   </asp:UpdatePanel>


  </div>
  <div class="modal-footer">
 <asp:UpdatePanel ID="ud3" runat="server" UpdateMode="Conditional">
 <ContentTemplate>
  <asp:Button ID="btnsave" runat="server" Text="Save" class="btn btn-primary" OnClick="btnsave_Click" autopostback="true" />
  </ContentTemplate>
  </asp:UpdatePanel>
  </div>




</div>
 </div>
 <div class="modal hide fade" id="Div1">
  <div class="modal-header">
    <button type="button" id="Button1" class="close" data-dismiss="modal" aria-hidden="true" runat="server">&times;</button>

    You selected 19 LOB's
  </div>
  <div class="modal-body">
</div>
</div>