考試系統時間自動控制程式

下面是考試的時間自動控制程式（便於演示只設了60秒鐘，實際應用應以系統調出試卷的考試時間為準！）：
＜SCRIPT language=JavaScript＞
＜!-- Write by HEKAI for TestTimeContorl
var timerID = null;var timerRunning = false
var stardate = new Date();var startime = gettotalsecond(stardate)
var totaltime = 60; var lasttime;var facetime
function Stepclock(){

[@more@]

// hk made by himself
if(timerRunning)
clearTimeout(timerID)
timerRunning = false }
function startclock(){
Stepclock();showtime() }
function gettotalsecond(getdate){
var hours = getdate.getHours()
var minutes = getdate.getMinutes();var seconds = getdate.getSeconds()
var gettotalsecond = seconds + minutes * 60 + hours * 3600
return(gettotalsecond) }
function showtime(){
var now = new Date();var timeValue = gettotalsecond(now)
document.clock.face.value = timeValue - startime
facetime = document.clock.face.value;lasttime = totaltime - facetime
document.clock.sytime.value = lasttime
timerID = setTimeout("showtime()",1000)
timerRunning = true
if (lasttime == 20){
for(i=1;i＜=3;i++){
alert('考試時間只剩下最後20秒！')}}
if (lasttime == 0){
for(i=1;i＜=5;i++){
alert('時間完畢！請迅速交卷！！')}}
if (lasttime == -10){
for(i=1;i＜=10;i++){
alert('考試時間超過10秒，關閉此視窗！')}}
}//--＞
＜/SCRIPT＞