wmtt = null;

document.onmousemove = updateWMTT;

function updateWMTT(e)
{
  x = (document.all) ? window.event.x + document.body.scrollLeft : e.pageX;
  y = (document.all) ? window.event.y + document.body.scrollTop  : e.pageY;
  if (wmtt != null)
  {
    wmtt.style.left = (x + 10) + "px";
    wmtt.style.top = (y - 20) + "px";
  }
}

function showWMTT(id)
{
  wmtt = document.getElementById(id);
  wmtt.style.display = "block";
}

function hideWMTT()
{
  wmtt.style.display = "none";
}