[jQuery] Ajax Update

Hello Everyone, I am doing some research on JavaScript library, concentrating on jQuery / MooTools and Prototype JS and I was wondering what is jQuery's equivalent to Prototype JS's Ajax.Updater. A simple method to update an id selector; this nav contains an "active" class to highlight and deact

[jQuery] Ajax update on visible viewport of my div

Hi, I have a scrollable div containing a table that can have like 100 thousands of lines from my database. I want to have an ajax update every 5 seconds on this data. So I tought I could update only the records which are visible in the area of the div that the user scrolled to. How would you ac