#nav_item1 {
    float: left;
    margin-left: 14px; 
    width: 80px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat 0px 0px;
}
#nav_item2 {
    float: left;
    margin-left: 2px;
    width: 94px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -84px 0px;
}
#nav_item3 {
    float: left;
    margin-left: 2px;
    width: 86px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -174px 0px;
}
#nav_item4 {
    float: left;
    margin-left: 3px;
    width: 185px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -259px 0px;
}
#nav_item5 {
    float: left;
    margin-left: 2px;
    width: 65px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -444px 0px;
}
#nav_item6 {
    float: left;
    margin-left: 2px;    
    width: 134px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -507px 0px;
}
#nav_item7 {
    float: left;
    margin-left: 2px;
    width: 143px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -640px 0px;
}
#nav_item8 {
    float: left;
    margin-left: 2px;
    width: 110px;
    height: 49px;
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -776px 0px;
}

#nav_item1:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat 0px -51px;
}
#nav_item2:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -84px -51px;
}
#nav_item3:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -174px -51px;
}
#nav_item4:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -259px -51px;
}
#nav_item5:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -444px -51px;
}
#nav_item6:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -507px -51px;
}
#nav_item7:hover {
     background: transparent url('../images/body/nav_sprite.jpg') no-repeat -640px -51px;
}
#nav_item8:hover {
    background: transparent url('../images/body/nav_sprite.jpg') no-repeat -776px -51px;
}