code: function convertNotation(options, notation) {
  	var i = 0, obj, option = options,
  
  	// Split notation into array
  	levels = notation.split('.');
  
  	// Loop through
  	while(option = option[ levels[i++] ]) {
  		if(i < levels.length) { obj = option; }
  	}
  
  	return [obj || options, levels.pop()];
  }
docs: Dot notation converter