/* indicates that the column can be sorted */
td.sortable
	{ background:#606060; font-weight: bold; cursor: pointer; }

/* indicates that the column is sorted from low to high */
td.sorted_asc
	{ background:#606060 url(../img/up.gif) center right no-repeat; }

/* indicates that the column is sorted from high to low */
td.sorted_desc
	{ background:#606060 url(../img/down.gif) center right no-repeat; }