Object.getClass // returns the class name of an object

Object.getClass.js

Object.getClass = function (object) {
	return object === undefined ? "Undefined"
	       : object === null ? "Null"
	       : (String.toString.call(object.constructor || object).match(/\s\w+/) || [" Function"])[0].slice(1);
};

Object.getClass.min.js

Object.getClass=function(a){return void 0===a?"Undefined":null===a?"Null":(String.toString.call(a.constructor||a).match(/\s\w+/)||[" Function"])[0].slice(1)};