.bg_stock {
	BACKGROUND-POSITION: 50% bottom; BACKGROUND-IMAGE: url(../images/bg_stock.jpg); BACKGROUND-REPEAT: no-repeat
}
.bg_area {
	BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(../cn/4operation/images/bg_jiao.jpg); BACKGROUND-REPEAT: no-repeat
}
.bg_map {
	BACKGROUND-POSITION: center bottom; BACKGROUND-IMAGE: url(../cn/map/images/bg_map.jpg); BACKGROUND-REPEAT: no-repeat
}