Javascript password generator found at http://stackoverflow.com/questions/1497481/javascript-password-generator

helper.coffee

class App.Helper
  generate_password: (length = 8) ->
    charset = "abcdefghjknpqrstuvwxyzABCDEFGHJKLMNPQRSTUVWXYZ23456789_@=.%"
    password = ""
    i = 0
    n = charset.length
    while i < length
      password += charset.charAt(Math.floor(Math.random() * n))
      ++i
    password