.menu {
	height: 34px;
	width: 750px;
	float: left;
	background-color: #FFFFFF;
}
.menu ul {
	margin: 0px;
	padding: 0px;
}
#contenido {
	width: 750px;
}

.menu li {
	float: left;
}
#organizacion {
	height: 34px;
	width: 165px;
	text-indent: 200px;
	overflow: hidden;
	display: block;
	float: left;
	text-decoration:none;
	background-image: url(images/enlace01.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}
#organizacion:hover{
	background-position: bottom left;
}
#presentacion{
	height: 34px;
	width: 171px;
	text-indent: 200px;
	overflow: hidden;
	display: block;
	float: left;
	text-decoration:none;
	background-image: url(images/enlace02.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}

#presentacion:hover{
	background-position: bottom left;
}
#expositores{
	height: 34px;
	width: 165px;
	text-indent: 200px;
	overflow: hidden;
	display: block;
	float: left;
	text-decoration:none;
	background-image: url(images/enlace03.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}

#expositores:hover{
	background-position: bottom left;
}
#visitores{
	height: 34px;
	width: 141px;
	text-indent: 200px;
	overflow: hidden;
	display: block;
	float: left;
	text-decoration:none;
	background-image: url(images/enlace04.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}

#visitores:hover{
	background-position: bottom left;
}
#prensa{
	height: 34px;
	width: 108px;
	text-indent: 200px;
	overflow: hidden;
	display: block;
	float: left;
	text-decoration:none;
	background-image: url(images/enlace05.jpg);
	background-repeat: no-repeat;
	background-position: left top;
}

#prensa:hover{
	background-position: bottom left;
}