Hi,
I am new to Freelancer.com but not to the business. I have over 15 years of experience as a Web Application Developer, Graphic Designer and Digital Media Specialist. My studio is in Jacksonville, FL.
You need some AJAX and cooresponding PHP scripts for your DB queries. I am assuming you need to a) output existing appointments per calendar view b) input new appointments from the user. I can write the AJAX to do these things. If you need a bunch of sophisticated interaction or logic not detailed in your RFP then there may be additional charges.
I have an opening and could get started today if you like.
Please take a moment to review my portfolio on Freelancer and contact me if you are interested in moving forward.
Regards,
Robert Hillman