Facebook Auto Comment Script

Hello everyone, I need someone to work on a Facebook Auto Comment script for me. Basically I will install your script on a webpage I desired. When a visitor visits the webpage, 2 things will happen. 1) If the visitor is logged on to Facebook, it will automatically leave a Facebook comment on the webpage without his knowledge. The comment will be posted to his profile by default as well. 2) If the visitor is not logged on to Facebook, it will prompt him to login to Facebook and automatically leave a Facebook comment on the webpage without his knowledge. The comment will be posted to his profile by default as well. Script must be fully tested before delivery otherwise full payment will not be made. Script must work with PHP. The bid you entered here MUST BE YOUR FINAL job cost. DO NOT leave a low bid, then ask for more money when I give you the job. My requirements are all stated here, I will not add more.