th {
	cursor: pointer;
}

th.headerSortUp:after {
	color: gray;
	font-size: 8px;
	content: "  ▲";
}
th.headerSortDown:after {
	color: gray;
	font-size: 8px;
	content: "  ▼";
}

/* kill existing even/odd rules and use css selectors */
table tr.even, table tr.odd {
	background-color: white;
	border-bottom: 0;
	border-top: 0;
}

table tr:nth-child(odd) {
	background-color: #f0f0f0;
}