#aibase
{
	position: fixed;
	left: 0px;
	top: 0px;
	width: 100%;
	height: 100%;
	background-color: rgba( 0, 0, 0, 0.8 );
	z-index: 5;
}


#aibox
{
	position: absolute;
	left: 50%;
	top: 50%;
	width: 1040px;
	height: 680px;
	margin-left: -512px;
	margin-top: -340px;
	border: 0px;
	padding: 0px;
	overflow: hidden;
}