var?data=['Phone5','Ipad','三星筆記本','佳能相機(jī)','惠普打印機(jī)','謝謝參與','50元充值卡','1000元超市購(gòu)物券'],
????timer=null,
????flag=0,
????title=document.getElementById('title'),
????play=document.getElementById('play'),
????stop=document.getElementById('stop');
window.onload=function?()?{
????//?vartitle=document.getElementById('title'),
????//?play=document.getElementById('play'),
????//?stop=document.getElementById('stop');
????//鼠標(biāo)點(diǎn)擊開始抽獎(jiǎng)
????play.onclick=playFun;
????stop.onclick=stopFun;
????//回車鍵開始抽獎(jiǎng)
????document.onkeyup=function(event){
????????event=event||window.event;
????????if?(event.keyCode==13)?{
????????????if?(flag==0)?{?playFun();}?
????????????else?{?stopFun();?}
????????}
????}
????function?playFun()?{
????????//setInterval計(jì)時(shí)器，每50毫秒執(zhí)行一次函數(shù)
????????clearInterval(timer);??//停止計(jì)時(shí)器
????????timer=setInterval(function(){
????????????var?random=Math.random(),??//0-1隨機(jī)數(shù)
????????????num=Math.floor(random*data.length);??//給范圍向下取整
????????????title.innerHTML=data[num];??//給標(biāo)題賦值
????????},50);
????????play.style.backgroundColor="#eee";
????????play.style.color="#aaa";
????????play.style.cursor="default";
????????stop.style.backgroundColor="#19448e";
????????stop.style.color="#fff";
????????stop.style.cursor="pointer";
????????flag=1;
????}
????function?stopFun()?{
????????clearInterval(timer);
????????play.style.backgroundColor="#19448e";
????????play.style.color="#fff";
????????play.style.cursor="pointer";
????????stop.style.backgroundColor="#eee";
????????stop.style.color="#aaa";
????????stop.style.cursor="default";
????????flag=0;
????}
}