function removerPropaganda(){
	parent.parent.location = "index.html";
}

function obterSaudacao(){
  day = new Date();
  hr = day.getHours();
  if(hr >= 6 && hr <= 11) return "Bom dia";
  if(hr >= 12 && hr <= 17) return "Boa tarde";
  if(hr >= 18 && hr <= 5) return "Boa noite";
}