Javascript Flash Check

var isFlashEnabled = (function() {
  try {
    var fo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
    if (fo) {
      return true;
    }
    return false;
  } catch(ex) {
    return (navigator.mimeTypes && navigator.mimeTypes["application/x-shockwave-flash"]) ?
          navigator.mimeTypes["application/x-shockwave-flash"].enabledPlugin : false;
  }
})();