// JavaScript Document

startList = function() {
if (document.all&&document.getElementById) {
navRoot = document.getElementById("nav");
for (i=0; i<navRoot.childNodes.length; i++) {
node = navRoot.childNodes[i];
if (node.nodeName=="LI") {
node.onmouseover=function() {
this.className+=" over";
  }
  node.onmouseout=function() {
  this.className=this.className.replace
	(" over", "");
   }
   }
  }
 }
}
window.onload=startList;

var isActive = true;

function showMenu(){
  if(isActive){
	  document.getElementById("campo_busca").style.visibility="hidden";
	  document.getElementById("campo_busca2").style.visibility="hidden";
	  document.getElementById("nav").style.visibility="visible";
	  isActive = false;
  }else{
	  document.getElementById("campo_busca").style.visibility="visible";
	  document.getElementById("campo_busca2").style.visibility="visible";
	  //document.getElementById("nav").style.visibility="hidden";
	  isActive = true;
  }
}

function showMenu2(){
  if(isActive){
	  document.getElementById("conteudo01").style.visibility="hidden";
	  document.getElementById("conteudo02").style.visibility="hidden";
	  document.getElementById("nav").style.visibility="visible";
	  isActive = false;
  }else{
	  document.getElementById("conteudo01").style.visibility="visible";
	  document.getElementById("conteudo02").style.visibility="visible";
	  //document.getElementById("nav").style.visibility="hidden";
	  isActive = true;
  }
}

function showMenu3(){
  if(isActive){
	  document.getElementById("conteudo03").style.visibility="hidden";
	  document.getElementById("nav").style.visibility="visible";
	  isActive = false;
  }else{
	  document.getElementById("conteudo03").style.visibility="visible";
	  //document.getElementById("nav").style.visibility="hidden";
	  isActive = true;
  }
}