function initBanner(){
  var bannercontainer = document.getElementById("banner_inicio");
  bannercontainer.style.position = "absolute";
  bannercontainer.style.display = "block";
  bannercontainer.style.overflow = "hidden";
  bannercontainer.style.height = "211px";
 // alert('e');
}

function showBanner(){
  document.getElementById("banner_inicio").style.height = "370px";
}

function hideBanner(){
  document.getElementById("banner_inicio").style.height = "211px";
}