table.tablesorter thead tr .header {
	background-image: url(bg.gif);
	background-repeat: no-repeat;
	background-position: -2px center;
	cursor: pointer;
	padding-left: 15px;
}
table.tablesorter thead tr .headerSortUp {
	background-image: url(asc.gif);
}
table.tablesorter thead tr .headerSortDown {
	background-image: url(desc.gif);
}
table.tablesorter thead tr .headerSortDown, table.tablesorter thead tr .headerSortUp {
	background-color: #d7d7d7;
	color: #000;
}