Javascript namespacing made simple

Namespace.js

Namespace = function(scope, definition) {
  var root = typeof GLOBAL !== 'undefined' ? GLOBAL : window;

  scope = scope.split('.');
  for(var i = 0; i < scope.length; ++i) {
    if(typeof root[scope[i]] === 'undefined')
      root[scope[i]] = {};
    root = root[scope[i]];
  }

  switch(typeof definition) {
    case 'function':
      definition.apply(root);
    case 'object':
      for(var key in definition)
        root[key] = definition[key]
  }

  return root;
}

Namespacing.js

Namespace('some.namespace', function() {
  // 'this' is bound to the 'some.namespace' object
  this.namespacedFunction = function() {
    console.log('I live in some.namespace');
  }
  
});

Namespace('some.other.namespace', {
  // This object will be joined into the namespace
  func: function() {
    console.log('I live in some.other.namespace');
  }
});

// The namespace can also be accessed directly
Namespace('some.other.other.namespace').fun = function() {
  console.log('WEEEEEEEEEEEEEEEEEE!!!');
}