var Nav, IE , range, style, item

  range = "";
  style = "";
  item  = 0;

  var dis = new Array(100);

  if (navigator.appName == "Netscape") {
      Nav = true
  } else {
      if (parseInt(navigator.appVersion) >= 4) {
          IE = true
          range = "all."
          style = ".style"
      }
  }

  function invisivel(a) {
    bObj = document.getElementById(a);
    if (bObj) bObj.style.display = "none";
  }
  function visivel(a) {
    bObj = document.getElementById(a);
    if (bObj) bObj.style.display = "inline";
  }

  function colorir(a, cor) {
    aObj = document.getElementById(a);
    if (aObj) aObj.style.backgroundColor = cor;
  }

  function toggleInfo(id) {
    if (dis[id]) {invisivel(id); dis[id] = 0;}
    else         {visivel(id);   dis[id] = 1;} 
    return false;
  }