/* Default */
#nav {
width: 768px;
height: 62px;
position: relative;
background: url(../images/nav_main.gif);
margin: 30px 0 15px 0;
padding: 0;
}

#nav li {
float: left;
}

#nav li a {
position: absolute;
top: 0;
margin: 0;
padding: 0;
display: block;
height: 62px;
background: url(../images/nav_main.gif) no-repeat;
text-indent: -9999px;
overflow: hidden;
}

/*up state*/
li#nav_home a {
left: 0;
width: 80px;
background-position: 0 0;
}

li#nav_collections a {
left: 80px;
width: 138px;
background-position: -80px 0;
}

li#nav_exhibits a {
left: 218px;
width: 109px;
background-position: -218px 0;
}

li#nav_resources a {
left: 327px;
width: 113px;
background-position: -327px 0;
}

li#nav_about a {
left: 440px;
width: 112px;
background-position: -440px 0;
}

li#nav_foundation a {
left: 552px;
width: 128px;
background-position: -552px 0;
}

li#nav_store a {
left: 680px;
width: 88px;
background-position: -680px 0;
}

/*hover state*/
li#nav_home a:hover {
background-position: 0 -63px;
}

li#nav_collections a:hover {
background-position: -80px -63px;
}

li#nav_exhibits a:hover {
background-position: -218px -63px;
}

li#nav_resources a:hover {
background-position: -327px -63px;
}

li#nav_about a:hover {
background-position: -440px -63px;
}

li#nav_foundation a:hover {
background-position: -552px -63px;
}

li#nav_store a:hover {
background-position: -680px -63px;
}

/*current state*/
#body_home li#nav_home a {
background-position: 0 -63px;
}

#body_collections li#nav_collections a {
background-position: -80px -63px;
}

#body_exhibits li#nav_exhibits a {
background-position: -218px -63px;
}

#body_resources li#nav_resources a {
background-position: -327px -63px;
}

#body_about li#nav_about a {
background-position: -440px -63px;
}

#body_foundation li#nav_foundation a {
background-position: -552px -63px;
}

#body_store li#nav_store a {
background-position: -680px -63px;
}