tabs don't work on IE but work on chrome

These tabs work on google chrome but not on IE.

The culprit in the following code is:

<li><a runat="server" disabled="disabled" id="mno" href="#mno">mno</a></li>

If I take out this tab, the other tabs work fine.

Please suggest a workaround on how to fix this.

<ContentTemplate>
   <asp:Panel ID="pnlOptions" runat="server">
                            <div id="tabs1" class="tabHeader">
                                <input type="hidden" value='0' runat="server" id="ActiveTabIndex" />
                                <ul class="scrollBottom">
                                    <li class='current'><a href="#abc">abc</a></li>
                                    <li><a href="#def">def</a></li>
                                    <li><a href="#ghi">ghi</a></li>
                                    <li class='postback'>
                                        <asp:LinkButton ID="tabjkl" EnableViewState="false" name="#jkl" runat="server" Text="jkl"
                                            OnClick="tabjkl_Click" /></li>
                                    <li><a runat="server" disabled="disabled" id="mno" href="#mno">mno</a></li>
                                    <li><a href="#pqr">pqr</a></li>
                                </ul>
                            </div>