function ToggleDisplay(oButton, oItems)
{

  if ((oItems.style.display == "") || (oItems.style.display == "none")) {
    oItems.style.display = "block";
    oButton.src =
      "http://www.cyber-zeirishi.jp/images/b-minus.gif";
  } else {
    oItems.style.display = "none";
    oButton.src =
      "http://www.cyber-zeirishi.jp/images/b-plus.gif";
  }
}

function remoteP(url, title) {
  remote = window.open("",title,"menubar=no,toolbar=no,locaton=no,directories=no,status=no,scrollbars=yes,resizeable=yes,width=400,height=500");

  if (remote != null) {
    if (remote.opener == null) {
      remote.opener = self;
    }
    remote.location.href= url;
  }
}

function remotetopics() {
  remoteP("topics.html", "Topics");
}