function hideshowCommon(which,imgid){
  if (!document.getElementById)  return
  if (which.style.display=="none"){
    which.style.display=""
  }else{
    which.style.display="none";
  }
}

function hideshow(which,imgid,cookiename){
  if (!document.getElementById)  return
  if (which.style.display=="none"){
    which.style.display=""
    document.images[imgid].src="/img/collapse.gif";
    document.cookie=cookiename+"=collapse";
  }else{
    document.images[imgid].src="/img/expand.gif";
    which.style.display="none";
    document.cookie=cookiename+"=expand";
  }
}