function getScrollTop()
{
  return getResults
  (
    window.pageYOffset ? window.pageYOffset : 0,
    document.documentElement ? document.documentElement.scrollTop : 0,
    document.body ? document.body.scrollTop : 0
  );
}

function getResults(n_win, n_docel, n_body)
{
  var n_result = n_win ? n_win : 0;
  if (n_docel && (!n_result || (n_result > n_docel))) n_result = n_docel;
  return n_body && (!n_result || (n_result > n_body)) ? n_body : n_result;
}

function menuMove()
{
  setInterval("setMenuPosition()",250);
}


function setMenuPosition()
{
  menuX = getScrollTop() + 60;
  if (document.layers)
  {
    documnet.layers['nav'].top = menuX;
  }
  if (document.all)
  {
    document.all.nav.style.top = menuX;
  }
}