function showHideDiv(id,val) {
  if(val==null) {
    if(document.getElementById(id).style.display=='none') {
      new Effect.BlindDown(id, { duration: 0.5});
    } else {
      new Effect.BlindUp(id, { duration: 0.5});
    }
  } else {
    if(val=='none') {
      new Effect.BlindUp(id, { duration: 0.5});
    } else if (val=='block') {
      new Effect.BlindDown(id, { duration: 0.5});
    }
  }
}

function pulsateMenuItem(id) {
  new Effect.Pulsate(id, { pulses: 1,duration: 0.2 });
}