一个简单的事件驱动框架的演示：
/*ControlDemo.js*/
//事件驱动框架（演示）
function ControlDemo(page)
{
//初始化Page
if (page == null)
{
page = self;
}
if (page != self)
{
//Do sth. here...
}
this.page = page;
//Properties
this.keyPressed = 0;
//Controlable Entities
//PageBody
this.body1 = page.document.getElementById("main");
page.PageLoadEventSender = this;
this.body1.onload = function(){this.PageLoadEventSender.PageLoad(this.PageLoadEventSender,page.event);}
//Button1
this.button1 = page.button1;
this.button1.value = "确定";
this.button1.ClickEventSender = this;
this.button1.onclick = function(){this.ClickEventSender.Button1_Click(this.ClickEventSender,page.event);}
//Button2
this.button2 = page.button2;
this.button2.value = "取消";
this.button2.ClickEventSender = this;
this.button2.onclick = function(){this.ClickEventSender.Button2_Click(this.ClickEventSender,page.event);}
//Textbox1
this.textbox1 = page.textbox1;
this.textbox1.style.width = "100%";
this.textbox1.rows = 10;
this.textbox1.KeyUpSender = this;
this.textbox1.onkeyup = function(){this.KeyUpSender.Textbox1_KeyUp(this.KeyUpSender,page.event);}
this.textbox1.MouseMoveSender = this;
this.textbox1.onmousemove = function(){this.MouseMoveSender.Textbox1_MouseMove(this.MouseMoveSender, page.event);}
//Labels
this.label1 = page.document.getElementById("label1");
this.label2 = page.document.getElementById("label2");
this.label3 = page.document.getElementById("label3");
//EventHandlers
this.PageLoad = function(sender,event)
{
this.page.defaultStatus = "事件驱动框架演示~~";
this.page.resizeTo(600,400);
}
this.Button1_Click = function(sender,event)
{
alert("Hello ^_^");
}
this.Button2_Click = function(sender,event)
{
if (page.opener == null)
{
page.opener = page;
}
page.close();
}
this.Textbox1_KeyUp = function(sender, event)
{
this.keyPressed++;
this.label1.innerText = this.keyPressed;
this.label2.innerText = this.textbox1.value.length;
this.label3.innerText = event.keyCode;
}
this.Textbox1_MouseMove = function(sender, event)
{
this.page.status = "鼠标位置：x="+event.x+" y="+event.y;
}
}
/*ControlDemo.html*/
<html>
<head>
<title>事件驱动框架演示</title>
</head>
<body id = "main">
<div align="center" id="div1">
<textarea name="textbox1" id="textbox1"></textarea><br/>
键盘点击次数为<span id="label1">0</span>次，共键入<span id="label2">0</span>个字符，最后输入的字符码为
<span id="label3">0</span>
<br/>
<input type="button" name="button1" id="button1"></input>
<input type="button" name="button2" id="button2"></input>
</div>
</body>
</html>
<script language="javascript" type="text/javascript" src="ControlDemo.js"></script>
<script language="javascript" type="text/javascript">
var demo = new ControlDemo();
</script>