SOURCE

function SuperType(name){
		this.name = name;
		this.colors = ["red","blue","green"];
	}
	
	SuperType.prototype.sayName = function(){
		alert(this.name);
	}
	
	function SubType(name,age){
		//继承属性
		SuperType.call(this,name);
		this.age = age;
	}
	
	//继承方法
	SubType.prototype = new SuperType();
	SubType.prototype.constructor = SubType;
	SubType.prototype.sayAge = function(){
		alert(this.age);
	}
	
	var instance1 = new SubType("Nicholas",29);
	instance1.colors.push("black");
	alert(instance1.colors);	//red|blue|green|black
	instance1.sayName();
	instance1.sayAge();
	
	var instance2 = new SubType("Greg",27);
	alert(instance2.colors);
	instance2.sayName();
	instance2.sayAge();