jquery.live.js

// is there any reason why I can't use this pattern to replace .live 
// in favour for .delegate?

(function ($) {
  
$.root = $(document); // hat tip: Cory Hart

// keep safe
$.fn._live = $.fn.live;
$.fn._die = $.fn.die;

$.fn.extend({
  live: function (type, fn) {
    $.root.delegate(this.selector, type, fn);
    return this;
  },
  die: function (type, fn) {
    $.root.undelegate(this.selector, type, fn);
    return this;
  }
});

})(jQuery);

Rewritten to use the extend() method. Not really necessary, but a guideline when writing plugins. Not sure about overwriting, though.