#menu a{
	display: block;
	text-decoration: none;
	font-size: 0px;
	width: 103px;
	height: 101px;
	padding: 0px;
	font-weight: normal;
	font-size-adjust: none;
	color: #000000;
	float: left;
	text-align: center;
	margin-left: 20px;
	margin-right: 20px;
	} 
	
.a1{
	background-image: url(../images/home.jpg);
	}
.a1:hover{
	background-image: url(../images/home_over.jpg);
	}
.a2{
	background-image: url(../images/prom.jpg);
	}
.a2:hover{
	background-image: url(../images/prom_over.jpg);
	}
.a3{
	background-image: url(../images/gallery.jpg);
	}
.a3:hover{
	background-image: url(../images/gallery_over.jpg);
	}
.a4{
	background-image: url(../images/contact.jpg);
	}
.a4:hover{
	background-image: url(../images/contact_over.jpg);
	}