function show(pos,id,width,top)
{
  if (document.all)
  {
    document.getElementById(id).style.left = pos-9 + "px";
  }
  else
  {
    document.getElementById(id).style.left = pos + "px";
  }
  document.getElementById(id).style.top = top + "px";
  document.getElementById(id).style.width = width-3 + "px";
  document.getElementById(id).style.display = "block";
}
function hide(id)
{
  document.getElementById(id).style.display = "none";
}