.bg1 {
	background-image: url(images/center_top.gif);
	background-repeat: repeat-x;
	background-position: left top;
}
.bg2 {
	background-image: url(button_set/board_line.gif);
	background-repeat: repeat-x;
	background-position: left bottom;
}
.bg3 {
	background-image: url(button_set/list_line_buttom.gif);
	background-repeat: repeat-x;
	background-position: left bottom;
}