$(document).ready(function(){
	var humano = 0;
	document.getElementById("humano_si_si").style.visibility = "hidden";
	document.getElementById("humano_no_si").style.visibility = "hidden";
	document.getElementById("btnEnviar").disabled = true;
   });

function esHumano(){
	humano = 1;
	document.getElementById("humano_si_si").style.visibility = "visible";
	document.getElementById("humano_no_si").style.visibility = "visible";
	document.getElementById("btnEnviar").disabled = false;
	};

function noesHumano(){
	humano = 0;
	document.getElementById("humano_si_si").style.visibility = "hidden";
	document.getElementById("humano_no_si").style.visibility = "hidden";
	document.getElementById("btnEnviar").disabled = true;
	};