function fncShowLayer (n,m){
	var strAux;
	strAux = document.getElementById('cat'+n).style.display;
	if (strAux=='none'){
		document.getElementById('cat'+n).style.display = 'block';
	}else{
		document.getElementById('cat'+n).style.display = 'none';
	}
	//window.open('listaSecao.php?idSec=' + m,'_self');
}