table.tablesorter {
}
table.tablesorter thead tr .header {
    background-image: url("../images/bg.gif");
    background-position: right center;
    background-repeat: no-repeat;
    cursor: pointer;
}
table.tablesorter thead tr .headerSortUp { background-image: url("../images/asc.gif"); }
table.tablesorter thead tr .headerSortDown { background-image: url("../images/desc.gif"); }
table.tablesorter thead tr .headerSortDown, table.tablesorter thead tr .headerSortUp { background-color: #d2d2d2; }