function navi(obj) {
 url = obj.options[obj.selectedIndex].value;
 if(url != "") {
   parent.frames["FRAMENAME"].location.href = url;
  }
}

// 画像・URLリストを配列で作る
   var imglist = [
      [ "./images/emeraldgreenocean2-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/beachblueskypalm1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/beachblueskytree1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/girlsurfingwaveblueocean1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/palmsunbluesky1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/palmyachtskyocean1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/sunsetblueskyocean1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/sunsetpalmstreetpeople1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] ,
      [ "./images/surfersblueocean1-300x680.jpg", "", "http://www.pointafter.jp/pashop/shop.cgi?class=all&keyword=KORAL&superkey=1&FF=0" ] //注
   ];

   // ランダムに1つ選んで表示する関数
   function RandomImageLink() {
      // どれか１つ選ぶ
      var selectnum = Math.floor(Math.random() * imglist.length);
      // 画像とリンクを生成
      var output = 
         '<a href="' + imglist[selectnum][2] + '">' +
         '<img src="' + imglist[selectnum][0] + '"' +
         ' alt="' + imglist[selectnum][1] + '"><br>' +
         imglist[selectnum][1] + '</a>';
      // 生成したHTMLを出力
      document.write(output);
   }