DOM Mutation event in JQuery or vanilla Javascript

Question

Are there any DOM mutation events in JQuery or in vanilla Javascript that fire cross browser?

To clarify, say I have a script on my page which inserts a div into the

Answer 1

The livequery plugin can be used for this. In version 1.x a timer was used to periodically check for any changes. However, the newer version 2.x branch seems to be working without periodical timeout (untested).