模拟抽奖

<P><html> <title>模拟抽奖-51windows.Net</title> <head> <meta name="keywords" content="51windows.Net"> <meta http-equiv=Content-Type content="text/html; charset=gb2312"> </head> <body> <SCRIPT LANGUAGE="JavaScript"> var alldata = "51windows,blueidea,csdn,google,baidu,msn,qq,cctv,microsoft,adobe" //抽奖的姓名，以,为分隔</P> <P>var alldataarr = alldata.split(",") var num = alldataarr.length-1 var timer function change(){ document.getElementById("oknum").value = alldataarr[GetRnd(0,num)]; }</P> <P>function start(){ clearInterval(timer); timer = setInterval('change()',50); //50（毫秒）为变换间隔，越小变换的越快 }</P> <P>function ok(){ clearInterval(timer); }</P> <P>function GetRnd(min,max){ return parseInt(Math.random()*(max-min+1)); } </SCRIPT> 模拟抽奖：<input type="text" id="oknum" name="oknum" value=""> <button onclick="start()" accesskey="s">开始(<U>S</U>)</button> <button onclick="ok()" accesskey="o">停止(<U>O</U>)</button> </body> </html></P>
[Ctrl+A 全选 注:如需引入外部Js需刷新才能执行]