.window {
	width:100%;
	height:280px;
	overflow: hidden;
	position:relative;
}
.window .center_frame {
	left:0px;
}
.islider {
	height: 280px;
	width: 820px;
	position:relative;
	margin:auto;
}


.islider img {
	margin-top: 8px;
}
.next_center_frame {
	top:-280px;
	left:4000px;
}