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                <iframe name="hidden_iframe" id="hidden_iframe" style="display:none;" onload="onLoad()"></iframe>
<form action="" method="post" target="hidden_iframe" onsubmit="submitted=true" >
            <label for="inline">記述式の質問(1行)</label>
            <input type="inline" name="entry.XXXXXX">
            <label for="context">記述式の質問(段落)</label>
            <textarea id="context" name="entry.XXXXXX"></textarea>
            <label for="radio">ラジオボタン選択式</label>
            <input type="radio" name="entry.XXXXXX" value="犬">犬
            <input type="radio" name="entry.XXXXXX" value="猫">猫
            <input type="radio" name="entry.XXXXXX" value="ウーパールーパー">ウーパールーパー
            <input type="radio" name="entry.XXXXXX" value="その他">その他
            <label for="checkbox">チェックボックス式</label>
            <input type="checkbox" name="entry.XXXXXX" value="大阪">大阪
            <input type="checkbox" name="entry.XXXXXX" value="兵庫">兵庫
            <input type="checkbox" name="entry.XXXXXX" value="京都">京都
            <input type="checkbox" name="entry.XXXXXX" value="奈良">奈良
            <input type="checkbox" name="entry.XXXXXX" value="和歌山">和歌山
            <input type="checkbox" name="entry.XXXXXX" value="滋賀">滋賀
            <input type="submit" value="送信する">
    <p id="success" style="display: none">送信が完了しました。お問い合わせ、ありがとうございました。</p>




                var submitted=false;
function onLoad() {
  if (submitted) {
  } else {