// JavaScript Document

function validacao(){
var cod = document.getElementById('cod');	
var valido = document.getElementById('validar');
var botao = document.getElementById('button');

if(cod.value==valido.value){
	botao.disabled=false;
}else{
	botao.disabled=true;
}
}


function buscar(){
var busca = document.getElementById('busca');	
var botao = document.getElementById('button');

if(busca.value.length > 3){
	botao.disabled=false;
}else{
	botao.disabled=true;
}
	
}