* html a:hover {
	visibility:visible
	}

.z-button {
	position: relative;
	width: 130px;
	height: 35px;
	}

.z-button a {
	text-decoration: none;
	font-size: 15px;
	}

.z-button a img {
	position: absolute;
	left: 0;
	top: 0;
	width: 130px;
	height: 35px;
	border: 0;
}

.z-button a span {
	position: absolute;
	left: 0px;
	top: 0px;
	width: 130px;
	height: 35px;
	padding: 8px 0px 0px 0px;
	cursor: pointer;
	text-align: center;
	}

.z-button a img.primary { z-index: 1; }
.z-button a img.rollover { z-index: -1; }
.z-button a:hover img.rollover { z-index: 2; }
.z-button a span { z-index: 3; }