.back {
	background-image: url(./images/index_13.gif);
	background-repeat: no-repeat;
	background-position: center top;
}
td {
	font-size: 13px;
	line-height: 18px;
	color: #333333;
}
.font11_15 {
	font-size: 11px;
	line-height: 15px;
	color: #333333;
}