[jQuery] Live on load

[BaBna]

Does anyone know if a plugin exists, which could detect any new node
in the DOM?
Something like live, but where the trigger would be the creation of
the element.
If it was possible with live, I guess that would be something like
that:
live("load",".myClass",function(){
  alert("A new element with the class myClass has been loaded in the
DOM");
});