<html:form action="example1" ajaxRef="example1">
  First Name: <html:text property="firstName" size="25" value="Frank" />
  <br>
  Last Name: <html:text property="lastName" size="25" value="Zammetti" />
  <br>
  <html:button property="button" value="Click to do Ajax!" ajaxRef="button" />
</html:form>
Result:<br>
<span id="example1_resultLayer"> </span>

//*********************************************
// 定義Pet(寵物)對(duì)象
//*********************************************
function Pet() {
    //名稱
    this.name = null;
    //顏色
    this.color = null;
    //獲取名稱
    this.getName = function() {
        return this.name;
    };
    //設(shè)置名稱
    this.setName = function(newName) {
        this.name = newName;
    };
    //獲取顏色
    this.getColor = function() {
        return this.color;
    };
    //設(shè)置顏色
    this.setColor = function(newColor) {
        this.color = newColor;
    };
    //定義一個(gè)需要實(shí)現(xiàn)的方法
    this.getFood = null;
    //獲取寵物的描述信息
    this.toString = function() {
        return "The pet is " + this.name +",it‘s "+this.color+",and it likes "+this.getFood()+".";
    };
}

//*********************************************
// 定義Cat(貓)對(duì)象
//*********************************************
function Cat() {
    //實(shí)現(xiàn)Pet中定義的getFood方法
    this.getFood = function() {
        return "fish";
    };
}

//聲明Cat的原型，即Cat的父類
Cat.prototype = new Pet;

多層次繼承
//*********************************************
// 定義PersianCat(波斯貓)對(duì)象
//*********************************************
function PersianCat() {
}

//聲明PersianCat的原型，即PersianCat的父類
PersianCat.prototype = new Cat;
3.3.    重載(override)與多態(tài)(Polymorphism)
//重載Pet的toString方法
PersianCat.prototype.toString = function() {
    return "It‘s just a persian cat.";
};

<script language="javascript" src="Pet.js" >
</ script >
< script language="javascript">
//定義一個(gè)Cat對(duì)象
var cat = new Cat();
cat.setName("MiMi");
cat.setColor("white");

//定義一個(gè)Dog對(duì)象
var dog = new Dog();
dog.setName("WangWang");
dog.setColor("yellow");

//定義一個(gè)PersianCat對(duì)象
var persianCat = new PersianCat();

//定義數(shù)組，保存上面的三個(gè)對(duì)象
var pets = new Array(3);
pets[0] = cat;
pets[1] = dog;
pets[2] = persianCat;

//測(cè)試程序
for(var i=0,size=pets.length;i<size;i++) {
    alert(pets[i].toString());
}
</script>