/* Default */
#nav {
width: 768px;
height: 48px;
position: relative;
background-image:url(../images/nav_main2012.gif);
margin: 15px 0 15px 0;
padding: 0;
}

#nav li {
float: left;
}

#nav li a {
position: absolute;
top: 0;
margin: 0;
padding: 0;
display: block;
height: 48px;
background: url(../images/nav_main2012.gif) no-repeat;
text-indent: -9999px;
overflow: hidden;
}

/*up state*/
li#nav_home a {
left: 0;
width: 66px;
background-position: 0 0;
}

li#nav_visit a {
left: 66px;
width: 124px;
background-position: -66px 0;
}

li#nav_programs a {
left: 190px;
width: 110px;
background-position: -190px 0;
}

li#nav_museum a {
left: 300px;
width: 92px;
background-position: -300px 0;
}

li#nav_donate a {
left: 392px;
width: 87px;
background-position: -392px 0;
}

li#nav_whatsnew a {
left: 479px;
width: 115px;
background-position: -479px 0;
}

li#nav_volunteer a {
left: 594px;
width: 112px;
background-position: -594px 0;
}

li#nav_shop a {
left: 706px;
width: 61px;
background-position: -706px 0;
}

/*hover state*/
li#nav_home a:hover {
background-position: 0 -53px;
}

li#nav_visit a:hover {
background-position: -66px -53px;
}

li#nav_programs a:hover {
background-position: -190px -53px;
}

li#nav_museum a:hover {
background-position: -300px -53px;
}

li#nav_donate a:hover {
background-position: -392px -53px;
}

li#nav_whatsnew a:hover {
background-position: -479px -53px;
}

li#nav_volunteer a:hover {
background-position: -594px -53px;
}

li#nav_shop a:hover {
background-position: -706px -53px;
}

/*current state*/
#body_home li#nav_home a {
background-position: 0 -103px;
}

#body_visit li#nav_visit a {
background-position: -66px -103px;
}

#body_programs li#nav_programs a {
background-position: -190px -103px;
}

#body_museum li#nav_museum a {
background-position: -300px -103px;
}

#body_donate li#nav_donate a {
background-position: -392px -103px;
}

#body_whatsnew li#nav_whatsnew a {
background-position: -479px -103px;
}

#body_volunteer li#nav_volunteer a {
background-position: -594px -103px;
}

#body_shop li#nav_shop a {
background-position: -706px -103px;
}