.buttons {
	background-image:url(arrow_bg.png);
	bottom:0;
	height:20px;
	left:0;
	position:absolute;
	width:80px;
}
#center_ad {
	height:190px;
	position:relative;
	width:830px;
	padding-bottom: 30px;
}
#arrows {
	background-image:url(arrow_bg.png);
	background-repeat:no-repeat;
	bottom:30;
	height:20px;
	left:0;
	list-style-image:none;
	list-style-position:outside;
	list-style-type:none;
	margin:0;
	padding:0;
	position:absolute;
	width:80px;
	overflow: hidden;
	z-index:1;
}
#arrows .left {
	background-image:url(arrow_double.png);
	background-repeat:no-repeat;
	cursor:pointer;
	height:14px;
	left:21px;
	top:3px;
	width:13px;
}
#arrows .right {
	background-image:url(arrow_double.png);
	background-position:right bottom;
	background-repeat:no-repeat;
	cursor:pointer;
	height:14px;
	right:21px;
	top:3px;
	width:13px;
}
#arrows a {
	display:block;
	outline: none;
	outline-style:none;
	position:absolute;
}
#visibleBlock {
	height:190px;
	width:830px;
	z-index:2;
}
.block_data {
	display:none;
}