gistfile1.txt

<form>
   <select onchange="action6181(this.value);">
      <option value="#">言語を選んでください</option>
      <option value="ja">日本語</option>
      <option value="es">スペイン語</option>
   </select>
</form>
<span></span><script type="text/javascript">//<![CDATA[
        span6181 = document.getElementsByTagName('script');
        span6181 = span6181[span6181.length - 1].previousSibling;
        function action6181(lang) {
            span6181.innerHTML = lang;
        }
//]]></script>