#top {
	margin: 0px auto;
	height: 157px;
	width: 900px;
}
a .alt { display: none; }
.top1 {
	background-image: url(../images/header.gif);
	background-repeat: no-repeat;
	clear: both;
	height: 82px;
	width: 900px;
}
a#uth {
    display: block;
    background-position: 0 0;
    margin: 0 auto;
	float:left;
    width: 218px;
	height:82px;
}
a#uth:hover, a#contacto:hover, a#quienes:hover, a#inicio:hover, a#test:hover, a#modelo:hove, a#estudiantes:hover, a#oferta:hover {
    background-position: 0 -27px;
}
.menu1 {
	background-image: url(../images/menu1.gif);
	background-repeat: no-repeat;
	clear: both;
	height: 31px;
	width: 900px;
}
a#contacto, a#quienes, a#inicio, a#test, a#modelo, a#estudiantes, a#oferta {
    display: block;
    background-position: 0 0;
    margin: 0 auto;
	float:right;
}
a#contacto {
    width: 74px;
	height:31px;
}
a#quienes {
    width: 115px;
	height:31px;
}
a#inicio {
    width: 50px;
	height:31px;
}
.menu2 {
	background-image: url(../images/menu2.gif);
	background-repeat: no-repeat;
	clear: both;
	height: 44px;
	width: 900px;
}
a#test {
    width: 166px;
	height:44px;
}
a#modelo {
    width: 148px;
	height:44px;
}
a#estudiantes {
    width: 103px;
	height:44px;
}
a#oferta {
    width: 137px;
	height:44px;
}