.bg{
	background: #000000;
	opacity: 0.7;
	filter: alpha(opacity=70);
	position: fixed;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	z-index: 9999;
	/*display: none;*/
}
.book_box{
	width: 966px;
	height: 550px;
	position: fixed;
	top: 50%;
	left: 50%;
	margin: -275px 0 0 -483px;
	z-index: 9999999;
	overflow: hidden;
	/*display: none;*/
}
.book_box .book_wraper{
	background: url(../img/bg01.png) no-repeat left top;
	height: 547px;
	width: 794px;
	position: relative;
}