.sub_nav_container_freedownload {
  display: block;
}
a.navisub_link_downloaddemo {
   background: url(../but/downloaddemo_selected_sub.png) no-repeat;
}
a.navisub_link_downloaddemo:hover {
   background: url(../but/downloaddemo_selected_sub.png) no-repeat;
}
.sub_nav_container_freedownload {
  display: block;
}
a.navimain_link_freedownload {
   background: url(../but/freedownload_selected.png) no-repeat;
}
a.navimain_link_freedownload:hover {
   background: url(../but/freedownload_selected.png) no-repeat;
}