authentication with facebook/yahoo/google

Hi there I need an authentication module (capable of working with javascript and/or actionscript) - so users can use the following services to log onto my site Login with Facebook Login with Yahoo Login with Google Login with Twitter Login with Linked in Login with OpenID Basic overview : -------------------- Input : User is presented with the icons from the service providers above to authenticate to our site. [there maybe a popup for authentication window from the provider, at which point the user uses their own credentials with the service provider to authenticate - after which the application returns to our website] Output : A call back is returned in Actionscript or Javascript with success or failure, and if success then the following information is written into the MySQL database : A : User's name B : User's email address (where provided by the service provider - for example facebook provides the email, but twitter does not) C : User's profile picture (where available) D : User's profile URL (where available) E : User's unique ID - if B (user's email address) is not returned, we need the system to ask for the user to enter their email before authentication is fully completed. ************************** Please provide fixed cost + time of delivery for providing commented code and documentation. There will be 3 milestones. 1. Full description of the project (done by you - so we can be sure you are making the right thing) 2. Alpha build 3. Release build