<!--

function togglevisibility (type, id, max){
  for (var i = 1; i <= max; i++) {
    if( type+i != type+id )
       document.getElementById(type+i).style.display = 'none';
  }
  if (document.getElementById) {
    var mydiv = document.getElementById(type+id);
    mydiv.style.display = (mydiv.style.display == 'none' ? '':'none');
  }
}