= Validates URL of

This plugin validate URL attribute:

 1. If data have not http:// or https://, it append http://
 2. Check url format by regular expression
 3. Send a HTTP request to check header response (only enable in production mode and options[:enable_http_check] is true)

== Usage

class Foo < ActiveRecord::Base
  validates_url_of :url, :message => 'is not valid or not responding'.t
end

# you can omit :message parameter

== Author
Wen-Tien Chang (ihower@gmail.com)

== License
Copyright (c) 2008 Handlino Inc., released under the MIT license