var sortIndex = $("#ListDiv").find(".datagrid-view2").find(".datagrid-header-row").find("td").eq(8).find("span").eq(1);

        sortIndex.removeClass("datagrid-sort-icon");

        sortIndex.addClass("datagrid-sort-icon2");

.datagrid-sort-icon2{background:url(../images/upDownIcon.png) no-repeat 0 0;width:15px;height:9px;display:inline-block; left: 3px;position: relative;top:;+top:-2px;top:2px\0;cursor:pointer;}