addLoadListener(init);

function init()
{
  
  var USyes = document.getElementById("USyes");
  USyes.onclick = hideoutsideUS;

  var USNo  = document.getElementById("USno");
  USNo.onclick = showoutsideUS;


  return true;
}


function showoutsideUS()
{
  var outsideUS = document.getElementById("outsideUS");
  outsideUS.className = "";
  return true;
}


function hideoutsideUS()
{
  var outsideUS = document.getElementById("outsideUS");
    outsideUS.className = "hidden";
  return true;
}



function addLoadListener(fn)
{
  if (typeof window.addEventListener != 'undefined')
  {
    window.addEventListener('load', fn, false);
  }
  else if (typeof document.addEventListener != 'undefined')
  {
    document.addEventListener('load', fn, false);
  }
  else if (typeof window.attachEvent != 'undefined')
  {
    window.attachEvent('onload', fn);
  }
  else
  {
    var oldfn = window.onload;
    if (typeof window.onload != 'function')
    {
      window.onload = fn;
    }
    else
    {
      window.onload = function()
      {
        oldfn();
        fn();
      };
    }
  }
}