#nav {
  width: 638px;
  top:180px;
  left:0px;
  height: 60px;
  position: relative;
  background: url(images/NFmenu.png);
  margin: 0;    
  padding: 0;
  z-index:1000;
}
#nav li {
  list-style: none;
}

#nav li {
  float: left;
}
#nav li a {
  position: absolute;
  top: 0;
  margin: 0;
  padding: 0;
  display: block;
  height: 60px;
  background: url(images/NFmenu.png) no-repeat;
  text-indent: -9999px;
  overflow: hidden;
  font-size: 1%;
}
li#nav_hom a {
  left: 0;
  width: 80px;
  background-position: 0 0;
}
li#nav_abt a {
  left: 80px;
  width: 100px;
  background-position: -80px 0;
}
li#nav_mem a {
  left: 180px;
  width: 160px;
  background-position: -180px 0;
}
li#nav_age a {
  left: 340px;
  width: 100px;
  background-position: -340px 0;
}
li#nav_dns a {
  left: 440px;
  width: 185px;
  background-position: -440px 0;
}
li#nav_hom a:hover {
  background-position: 0 -60px;
}
li#nav_abt a:hover {
  background-position: -80px -60px;
}
li#nav_mem a:hover {
  background-position: -180px -60px;
}
li#nav_age a:hover {
  background-position: -340px -60px;
}
li#nav_dns a:hover {
  background-position: -440px -60px;
}
#body_hom li#nav_hom  a {
  background-position: 0 -120px;
}
#body_abt li#nav_abt a {
  background-position: -80px -120px;
}
#body_mem li#nav_mem a {
  background-position: -180px -120px;
}
#body_age li#nav_age a {
  background-position: -340px -120px;
}
#body_dns li#nav_dns a {
  background-position: -440px -120px;
}