It’s been more than two years since I posted a simple tutorial on Thumbs Up Thumbs Down Voting with PHP, MySQL and jQuery. That post receives the second most page-views on this blog. People created voting scripts on it. More and more talks happened on its security. Some even mailed me. And admittedly, it was least secure. Refresh the page and vote again! But then again, it was just to show how things work and not meant for production at all.

Because is very useful and powerful, it is considered as a standard approach to design modern web-applications.Using Ajax you can develop interactive solutions for lightboxes, form validation, search, tooltips, navigation and tables. Always keep in mind its drawback in terms of usability and accessibility. Extensive Ajax means that you can easily confuse your visitors giving them to much control and features.