I wanted to create ajax based commenting system for some html pages. The design goals were: 1. Simple to use and install 2. Database (MySQL) backed 3. Minimal changes to HTML template / files 4. Support effective (no frequent cache refreshes) html page compression / caching strategy for heavily commented sites.

Sajax is an useful ajax framework to simplify ajax based development for languages like PHP, Ruby etc. Not many realize Sajax can be used equally well from plain old html pages (as in .html or .htm). Their website doesn't mention it anywhere so I can guess it was not one of their use cases. However sajax is based upon ajax which is plain old Javascript. Let's find out how we can use trusty old sajax to liven up your static pages.

We are doing extensive work with WordPress, developing plugins, themes and also modifying the code base where necessary. In the process I found it necessary to create a online cross-reference of WordPress source along with capability to annotate / comment (AJAX based) as necessary.