function showHideLocation(id, show)  {
  e = document.getElementById("preview"+id);


  if(show == 1)  {
    e.className = "";
  }
  else  {
    e.className = "hide";
  }

}

function showFeature(id, total)  {
  for(i = 0; i < total; i++)  {
    showHideLocation(i, 0);
  }

  showHideLocation(id, 1);
}