var hint_div_name = null;

// Функция скрывает подсказку.
function hint_div_hide(div_name)
{
  var div = get_object(div_name);
	div.style.visibility = "hidden";
}

// Функция показывает подсказку.
function hint_div_show(div_name, obj)
{
  if (hint_div_name != null)
    hint_div_hide(hint_div_name);
  var div = get_object(div_name);
  var point = get_absolute_position(obj);
  div.style.left = point.x;
  div.style.top = point.y;
  div.style.visibility = "visible";
  hint_div_name = div_name;
}