AJAX/JS/CSS/HTML Widget

Look at the attached image. It has been taken from Google's Calendar, Event. To see it, go to [login to view URL], create an event and you would see it at the bottom of the screen "Discuss this event". I need: 1. HTML, Javascript, CSS of this functionality, which can be plugged onto any website. 2. Prototype of all backend (server side) functions need to be defined, with well defined input parameters and the expected output for these functions. 3. A dummy code for server side to test and emulate this functionality. A brief explanation of the functionality: - On clicking "Discuss this event" 1. It toggles the display of comment section. 2. When expanding the comment section for the first time, it makes an AJAX call to fetch all old comments from the server and subsequent expansion just displays what has been fetched earlier and cached. - In comment section, it first shows a textarea to add a new comment, followed by list of old comments with their usernames/emails. - On clicking "Add a comment" toggles the display of the section to add the comment. - When a new comment is added and "Post Comment" is selected, it makes an AJAX call to save the comment on the server and also adds it to the old comments for subsequent display. For best understanding of the functionality, look at the event details in [login to view URL] ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). ## Platform Should work on the following browsers Internet Explorer 6, Internet-Explorer 7, FireFox 1.5.x, FireFox 2.x.