.half-ad {
	width: 475px;
	height: 244px;
	margin: 0px;
	padding: 0px;
}
	.half-ad a{
		display: block;
		width: 475px;
		height: 244px;
		margin: 0px;
		padding: 0px;
	}
	
	a.airwave{
		background: transparent url(../images/product/ads/airwave3.png) no-repeat top left;
	}
	a.airwave_wide{
		background: transparent url(../images/product/ads/airwave_wide.jpg) no-repeat top left;
	}
	a.assault{
		background: transparent url(../images/product/ads/Dive-TEK.jpg) no-repeat top left;
	}

.wide-ad{
	width: 950px;
	height: 244px;
	margin: 0px;
	padding: 0px;
}
	.wide-ad a{
		display: block;
		width: 950px;
		height: 244px;
		margin: 0px;
		padding: 0px;
	}
	
.left {
	float:left;
}
.right {
	float:right;
}
.center {
	margin-left: auto;
	margin-right: auto;
}