// JavaScript Document
function Activar (id) {
   var currentMsgs = document.getElementsByName (id);

   for (i = 0; i < currentMsgs.length; i++) {       
      var currentMsg = currentMsgs [i];

      if (currentMsg.style.display == "none")
         currentMsg.style.display = "block";
   }
}
   
function Desactivar (id2) {
   var currentMsgs = document.getElementsByName (id2);

   for (i = 0; i < currentMsgs.length; i++) {       
      var currentMsg = currentMsgs [i];

      if (currentMsg.style.display == "block")
         currentMsg.style.display = "none";
   }
}
   
function Llamar (id, id2) {
   Activar (id);
   Desactivar (id2);
}