.products a {
	height: 30px;
	width: 81px;
	float: left;
	background-image: url(../images/menu-2-products.png);
	background-position: 0 0 no-repeat;
	display: block;
	text-decoration: none;
}
.products a:hover {
	background-position: -81px 0;
}
.products a:active {
	background-position: -81px 0;

}
.knowledge a {
	height: 30px;
	width: 94px;
	float: left;
	background-image: url(../images/menu-4-knowledge.png);
	background-position: 0 0 no-repeat;
	display: block;
	text-decoration: none;
}
.knowledge a:hover {
	background-position: -94px 0;
}
.knowledge a:active {
	background-position: -94px 0;
}
.services a {
	height: 30px;
	width: 76px;
	float: left;
	background-image: url(../images/menu-3-services.png);
	background-position: 0 0 no-repeat;
	display: block;
	text-decoration: none;
}
.services a:hover {
	background-position: -76px 0;
}
.services a:active {
	background-position: -76px 0;
}
.store a {
	height: 30px;
	width: 56px;
	float:left;
	background-image: url(../images/menu-5-store.png);
	background-position: 0 0 no-repeat;
	display: block;
	text-decoration: none;
}
.store a:hover {
	background-position: -56px 0;
}
.store a:active {
	background-position: -56px 0;
}

.forum a {
	height: 30px;
	width: 91px;
	float:left;
	background-image: url(../images/menu-6-forum.png);
	background-position: 0 0 no-repeat;
	display: block;
	text-decoration: none;
}
.forum a:hover {
	background-position: -91px 0;
}
.forum a:active {
	background-position: -91px 0;