function showTooltip(event, text)
{
  if (!event) event = window.event;

  var obj = document.getElementById("tooltip");

  var MouseX = event.clientX + getBodyScrollLeft();
  var MouseY = event.clientY + getBodyScrollTop();

  obj.style.position = "absolute";
  obj.style.top = parseInt(MouseY - 160) + "px";
  obj.style.left = parseInt(MouseX - 200) + "px";

  obj.style.display = "block";
  obj.style.visibility = "visible";
  obj.style.zIndex = "1000";

  obj.innerHTML = text;
}



function hideTooltip()
{
  var obj = document.getElementById("tooltip");

  obj.style.position = "relative";

  obj.style.display = "none";
  obj.style.visibility = "hidden";

  obj.innerHTML = "";
}



function getBodyScrollTop()
{
  return self.pageYOffset || (document.documentElement && document.documentElement.scrollTop) || (document.body && document.body.scrollTop);
}

function getBodyScrollLeft()
{
  return self.pageXOffset || (document.documentElement && document.documentElement.scrollLeft) || (document.body && document.body.scrollLeft);
}