(function(D, s) {
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      b = D.getElementsByTagName('body'),
      ss = (b && b[0] && b[0].lastChild) ? b[0].lastChild : D.getElementsByTagName(s)[0],
      agent = navigator.userAgent.toLowerCase(),
      c = '';
  if (agent.search(/iphone/) != -1 || agent.search(/ipod/) != -1) {
    c = 'ios';
  } else if (agent.search(/android/) != -1) {
    c = 'android';
  } else {
    c = 'pc';
  }
  ca.type = 'text/javascript';
  ca.async = !0;
  ca.setAttribute('charset', 'utf-8');
  _chaq['device'] = c;
  _chaq['host'] = 'st.r-i.jp';
  _chaq['protocol'] = 'https://';
  var sr = _chaq['protocol'] + _chaq['host'] + '/widget.js.php?pcmobile=' + c + '&ac=' + _chaq['_accountID'];
  ca.src = sr;
  ss.parentNode.appendChild(ca);
})(document, 'script');