function login() {
  this.uid = document.getElementById("lguid").value;
  this.pwd = document.getElementById("lgpwd").value;
  if(this.uid == "" || this.pwd == "")
    alert("ログインＩＤ、パスワードを入力してください。");
  else {
    window.open("/mbr02/mbr.cgi?type=209&uid=" + this.uid + "&pwd=" + this.pwd, "_top");
  }
}