8.6. Advantages and Disadvantages
At the risk of repeating myself, and everyone else who has ever uttered a word about Ajax, the advantage of Ajax is that a web application has the look and feel of a Windows or Linux application. No more does the visitor have to click and wait for the entire unload/reload cycle to complete. Instead, only the parts of the page that actually change are updated, which significantly cuts down on the time required for a page update.