function checkVisibility(list_id, next_list_id){
  var nextlist, vis, list;
  list = $(list_id);
  nextlist = $(next_list_id);
  vis = nextlist.style;
  if (list.value == '(Select One)'){
    vis.visibility = 'hidden';
    vis.display = 'none';
  }
  else {
    vis.visibility = 'visible';
    vis.display = 'block';
    nextlist.focus();
  }
}