Modernizr-like Flash plugin detection

Place this code at the top of your javascript:

if typeof navigator.plugins isnt "undefined" and
   typeof navigator.plugins["Shockwave Flash"] is "object"
  $('html').addClass 'flash'
else
  $('html').addClass 'no-flash'

It will either add a flash class to the html tag if the flash plugin is available or a no-flash otherwise