#nav{
 margin: auto;
 width:960px;
     height: 37px;
 position: relative;
 background: url('images/nav.jpg') no-repeat;
}
#nav ul{
   
    padding: 0;
    margin: auto;
    position: relative;
}
#nav li
{
    margin: 0;
    padding: 0;
    list-style: none;
    position: absolute;
}
#nav li, #nav a
{
    height: 37px;
    display: block;
}
#nav a span
{
    display: none;
}
.nav1
{
    left: 0px;
    width: 80px;
}
.nav1 a:hover
{
    background: transparent url(images/nav.jpg) 0px -37px no-repeat;
}
.nav2
{
    left: 80px;
    width: 120px;
}
.nav2 a:hover
{
    background: transparent url(images/nav.jpg) -80px -37px no-repeat;
}
.nav3
{
    left: 200px;
    width: 117px;
}
.nav3 a:hover
{
    background: transparent url(images/nav.jpg) -200px -37px no-repeat;
}
.nav4
{
    left: 317px;
    width: 136px;
}
.nav4 a:hover
{
    background: transparent url(images/nav.jpg) -317px -37px no-repeat;
}
.nav5
{
    left: 453px;
    width: 95px;
}
.nav5 a:hover
{
    background: transparent url(images/nav.jpg) -453px -37px no-repeat;
}