th a { padding-right: 15px; background-position: right; background-repeat:no-repeat; }
th.wicket_orderDown a { color:black; background-image: url(arrow_down.png); }
th.wicket_orderUp a { color: black; background-image: url(arrow_up.png); }
th.wicket_orderNone a {	background-image: url(arrow_off.png);}