// JavaScript Document
	function oculta(){
    document.getElementById('camada').style.visibility='hidden';
	}
	function mostra(){
    document.getElementById('camada').style.visibility='visible';
	}
	function oculta1(){
    document.getElementById('camada1').style.visibility='hidden';
	}
	function mostra1(){
    document.getElementById('camada1').style.visibility='visible';
	}
	function oculta2(){
    document.getElementById('camada2').style.visibility='hidden';
	}
	function mostra2(){
    document.getElementById('camada2').style.visibility='visible';
	}
	function oculta3(){
    document.getElementById('camada3').style.visibility='hidden';
	}
	function mostra3(){
    document.getElementById('camada3').style.visibility='visible';
	}
	function oculta4(){
    document.getElementById('camada4').style.visibility='hidden';
	}
	function mostra4(){
    document.getElementById('camada4').style.visibility='visible';
	}
	function oculta5(){
    document.getElementById('camada5').style.visibility='hidden';
	}
	function mostra5(){
    document.getElementById('camada5').style.visibility='visible';
	}