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<!DOCTYPE html>
<html>
<head>
<script type="application/javascript">

  function setDomain(domain) {
    document.domain = domain;
  }

  function tryToAccess(otherWin) {
    try {
      var text = otherWin.document.getElementById('foo').innerHTML;
      return /Better Late/.exec(text);
    } catch (e) { return false; }
  }

  var gRef = null;
  function storeReference(otherWin) {
    gRef = otherWin.document.getElementById('foo');
  }

  function tryToAccessStored() {
    try {
      return /Better Late/.exec(gRef.innerHTML);
    } catch (e) { return false; }
  }


</script>
</head>
<body>
<span id="foo">Better Late than Never</span>
</body>
</html>