.x-tab-tabmenu-right {
    background: transparent url(/ux/resources/images/tabscrollermenu/menu-gif/ext.axd) no-repeat 0 0;
    width: 18px;
    height: 20px;
    cursor: pointer;
    zoom: 1;
    z-index: 6;
    float: right;
}

.x-tab-tabmenu-over {
    background-position: -18px 0;
}

.x-tab-tabmenu-disabled {
    background-position: 0 0;
    opacity: 0.5;
    -moz-opacity: 0.5;
    filter: opacity=50;
    cursor: default;
}