function addMenu(){
      if (null != document.getElementById('mainOuter')) document.getElementById('mainOuter').style.marginLeft = "0";
      if (null != document.getElementById('bodyMenu')) document.getElementById('bodyMenu').style.display = "block";
      if (null != document.getElementById('bodyMenuSearch')) document.getElementById('bodyMenuSearch').style.display = "block";
      if (null != document.getElementById('availabilityOuter')) document.getElementById('availabilityOuter').style.marginLeft = "35px";
      if (null != document.getElementById('availabilityMiddle')) document.getElementById('availabilityMiddle').style.width = "541px";
      return false;
   }