window.onscroll = function() {
var root = (document.compatMode == "CSS1Compat"?
document.documentElement: document.body);
if (document.getElementById('floating-box'))
{
var elem = document.getElementById('floating-box');
if (root.scrollTop > 313)
{
  elem.style.top = root.scrollTop -0 + "px";
}
else
{
  elem.style.top = "333px";
}
}
};