In a nutshell you can bind to selectors dynamically - so if content gets added to the document that matches an existing Live binding, jQuery will go ahead and create the binding for you.  It didn't work with all event types in previous versions of jQuery; now it seems that they're essentially all covered.<p>See here: <a href="http://api.jquery.com/live/" rel="nofollow">http://api.jquery.com/live/</a>