<SCRIPT language=JavaScript>
<!--
var maxtime;
maxtime = 60*60;
function CountDown(){
if(maxtime>=0){
minutes = Math.floor(maxtime/60);
seconds = Math.floor(maxtime%60);
msg = ""+minutes+"分"+seconds+"秒";
document.all["timer"].innerHTML = msg;
if(maxtime == 20*60) alert('注意，還有4分鐘!");
if(maxtime == 2*60) alert('注意，還有2分鐘!");
if(maxtime == 1*60) alert('注意，還有1分鐘!");
--maxtime;
window.name = maxtime;
}
}
timer = setInterval("CountDown()",1000);
//-->
</SCRIPT>
</head>
<body>
<br>
<span id=timer></span>