<script src="lib/WebModule.js"></script>
<script src="lib/FlashDetector.js"></script>

window.onload = function() {
  var flash = new FlashDetector({
    swf: "swf/FlashDetector/bin/FlashDetector.swf",
    callback: function(flashEnabled) { // @arg Boolean
      console.log(flashEnabled === flash.enabled); // -> true
      alert(flash.enabled);
    }
  });
}