OnClientClick无法在IE11中运行

Question

onClientClick事件在IE11浏览器中没有被触发，但是同样的代码在IE8,9和10浏览器中运行得非常好。我需要在那里添加任何额外的代码吗？

     <table width="100%">   
                    <tr>             
                     <td align="center">
                        <asp:Button runat="server" ID="btnFTCancel" Text="Cancel"            
                    OnClientClick="return confirmCancel();" OnClick="btnUpdate_Click" ClientIDMode="Static"/>       
                    </td>
                     <td align="center">
                        <asp:Button runat="server" ID="btnApprove" Text="Approve" Enabled="false"            
                    OnClientClick="return confirmApprove();" OnClick="btnUpdate_Click"/>       
                    </td>
                    </tr>
                    </table>  


<script type="text/javascript">
        function confirmCancel() {
            var returnvalue;
            $("#btnFTCancel").css("cursor", "text");
            returnvalue = confirm('Transactions generated for this request ID will be cancelled. Do you wish to continue ?');
            return returnvalue;
        }

        function confirmApprove() {
            var returnvalue;
            returnvalue = confirm('Transactions generated for this request ID will be sent to FCS. Do you wish to continue ?');
            return returnvalue;
       }
        function setBtnCursor() {
            $("input[type='submit']").css('cursor', 'pointer');
             $("input[type='submit'][disabled='disabled']").css('cursor', 'default');
         }

    </script>

TIA，

阿米特