function footernav(flID) {
   if (flID == "cos") {
      document.getElementById("cosmeticbg").style.display = 'block';
      document.getElementById("wellnessbg").style.display = 'none';
     } else if (flID == "well") {
      document.getElementById("wellnessbg").style.display = 'block';
      document.getElementById("cosmeticbg").style.display = 'none';
     }
  }