function initBanner(){
  var bannercontainer = document.getElementById("bannercontainer2");
  bannercontainer.style.position = "absolute";
  bannercontainer.style.display = "block";
  bannercontainer.style.overflow = "hidden";
  bannercontainer.style.height = "250px";

}

function showBanner(){
  document.getElementById("bannercontainer2").style.height = "250px";
}

function hideBanner(){
  document.getElementById("bannercontainer2").style.height = "50px";
}

function initBanner2(){
  var bannercontainer2 = document.getElementById("bannercontainer1");
  bannercontainer2.style.position = "absolute";
  bannercontainer2.style.display = "block";
  bannercontainer2.style.overflow = "hidden";
  bannercontainer2.style.height = "300px";

}

function showBanner2(){
  document.getElementById("bannercontainer1").style.height = "300px";
}

function hideBanner2(){
  document.getElementById("bannercontainer1").style.height = "300px";
}