// Based on Core.js from MooTools (MIT)
// Copyright (c) 2006-2009 Valerio Proietti, <http://mad4milk.net/>

(function(){

  var object = io.util.Object = {
  
    clone: function(item){
      var clone;
      if (item instanceof Array){
        clone = [];
      	for (var i = 0; i < item.length; i++) clone[i] = object.clone(item[i]);
      	return clone;
      } else if (typeof item == 'object') {
        clone = {};
      	for (var key in object) clone[key] = object.clone(object[key]);
      	return clone;
      } else {
        return item;
      }
    },
  
    merge: function(source, k, v){
      if (typeof k == 'string') return mergeOne(source, k, v);
    	for (var i = 1, l = arguments.length; i < l; i++){
    		var object = arguments[i];
    		for (var key in object) mergeOne(source, key, object[key]);
    	}
    	return source;
    }
  
  },
  
  mergeOne = function(source, key, current){
    if (current instanceof Array){
      source[key] = object.clone(current);
    } else if (typeof current == 'object'){
      if (typeof source[key] == 'object') object.merge(source[key], current);
			else source[key] = object.clone(current);
    } else {
      source[key] = current;
    }
    return source;
  };
  
})();