JavaScript inspection

inspect.js

var Inspect = {                                                                                                              
	TYPE_FUNCTION: 'function',                                                                                                  
	// Returns an array of (the names of) all methods                                                                           
	methods: function(obj) {                                                                                                    
		var testObj = obj || self;                                                                                                 
		var methods = [];                                                                                                          
		for (var prop in testObj) {                                                                                                
			if (typeof testObj[prop] == Inspect.TYPE_FUNCTION && typeof Inspect[prop] != Inspect.TYPE_FUNCTION) {                     
				methods.push(prop);                                                                                                      
			}                                                                                                                         
		}                                                                                                                          
		return methods;                                                                                                            
	},                                                                                                                          
	// Returns an array of (the names of) all properties                                                                        
	properties: function(obj) {                                                                                                 
		var testObj = obj || self;                                                                                                 
		var properties = [];                                                                                                       
		for (var prop in testObj) {                                                                                                
			if (typeof testObj[prop] != Inspect.TYPE_FUNCTION && typeof Inspect[prop] != Inspect.TYPE_FUNCTION) {                     
				properties.push(prop);                                                                                                   
			}                                                                                                                         
		}                                                                                                                          
		return properties;                                                                                                         
	}                                                                                                                           
};