How to observe when an element is created

readyelement.js

var readyElement = (function(){
  return {
    observe : function(id,callback){
      var interval = setInterval(function(){
        if(document.getElementById(id)){
          callback(document.getElementById(id));
          clearInterval(interval);
        }
      },60); 
    }
  }
})();

readyElement.observe('my_awesome_new_element',function(el){ console.log(el) });

You can also use the DOM event DOMNodeInserted (https://developer.mozilla.org/en/DOM/DOM_event_reference) or, if using jQuery, livequery (http://docs.jquery.com/Plugins/livequery)

Yep. But i'm trying to create an hybrid solution, without any dependencies, like jQuery. But sure, live() method is very useful.
DOMNodeInserted is great, but just for modern browsers, right?
Well, the best solution is to use DOMNodeInserted, and fallback for something like the code above.
Thanks for comment.

Yeah the event is still a draft. I'd do the fallback thing as well. If you want to be more flexible, you can add options for the interval time and input selector format (id, class, element name, etc.) :)

Cool, sounds like a good micro-solution.