function show (ID){
  	var el = document.getElementById(ID);
  	if (el.style.display == "none")
  	{
  		el.style.display = "block";
  	}
  	else 
  	{
  		el.style.display = "block";
  	}
  }
  
// funcao ocultar div
  function hide (ID){
  	var el = document.getElementById(ID);
  	if (el.style.display == "block")
  	{
  		el.style.display = "none";
  	}
  	else 
  	{
  		el.style.display = "none";
  	}
  }