var imglist = [
      [ "http://nail-nail.jp/images/random_images/main02.jpg", "", "http://nail-nail.jp/nail-salon.html" ] ,
      [ "http://nail-nail.jp/images/random_images/main03.jpg", "", "http://nail-nail.jp/nail-salon.html" ] ,
      [ "http://nail-nail.jp/images/random_images/main04.jpg", "", "http://nail-nail.jp/nail-new.html" ] ,
        ];http://nail-nail.jp/nail-salon.html
   function RandomImageLink() {
      var selectnum = Math.floor(Math.random() * imglist.length);
      var output =
         '<a href="' + imglist[selectnum][2] + '">' +
         '<img src="' + imglist[selectnum][0] + '"' +
         ' alt="' + imglist[selectnum][1] + '"><br>' +
         imglist[selectnum][1] + '</a>';
      document.write(output);
   }