How to add a image to the default selected JQuery tab by adding a class?

I have a jQuery tab, where I need to add an image.

So When a tab is selected it looks like

This is being achieved by the following code:

        $(".ui-state-active").css("background-image", "url('/Content/images/tab-over.png')");
        $('#tabs .tab-menu li a').click(function() {
            $('#tabs .tab-menu li').css("background-image", "none");
            $(this).parent().css("background-image", "url('/Content/images/tab-over.png')");
        });

It works fine expect that in the first line of code I want to remove that class (.ui-state-active) and add my own class. How can that be done ? Here is my tab code:

<ul class="tab-menu">
        <li><a href="<%= Url.Action("GetCoreTab", "Tab") %>" class="a"><b>
            <div id="home" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetCustomerInformationTab", "Tab") %>" class="a"><b>
            <div id="customer-information" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetRatesAndChargesTab", "Tab") %>" class="a"><b>
            <div id="rates-and-charges" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetPaymentsAndVouchersTab", "Tab") %>" class="a"><b>
            <div id="payments-and-vouchers" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetDeliveryAndCollectionTab", "Tab") %>" class="a"><b>
            <div id="delivery-and-collection" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetGeneralTab", "Tab") %>" class="a"><b>
            <div id="general" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetEquipmentAndOtherDriversTab", "Tab") %>" class="a">
            <b>
                <div id="equipment-and-other-drivers" class="menu">
                </div>
            </b></a></li>
        <li><a href="<%= Url.开发者_运维知识库Action("GetCustomerPreferencesTab", "Tab") %>" class="a"><b>
            <div id="customer-preferences" class="menu">
            </div>
        </b></a></li>
        <li><a href="<%= Url.Action("GetCustomerStatisticsTab", "Tab") %>" class="a"><b>
            <div id="customer-statistics" class="menu">
            </div>
        </b></a></li>
    </ul>

Any help is appreciated.

Thanks.

---

I recommended you to overwrite .ui-state-active class and remove all the styles associated to it. This class is added to an element with its is activated, so removing the styles overwritting it should be ok.