.bg-main {
	background-attachment: scroll;
	background-image: url(image/plate_bg.gif);
	background-repeat: repeat-x;
	background-position: center top;
	background-color: #e6e6e6;
}
.bg-left {
	background-color: #FFFFFF;
	background-image: url(image/left_bg.jpg);
	background-repeat: no-repeat;
	background-position: right top;
}