我在网上找了一个计时器,但我现在想加两个功能,一个是暂停计时(不是停止恢复成0,是暂停计时),第二个是从新计时,如何实现呢?麻烦大哥们帮改改,谢谢
<script language=JavaScript>
var timerID = null;
var timerRunning = false;var hours = 0
var minutes = 0
var seconds = 0function stopclock ()
{
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}function startclock ()
{
stopclock();
showtime();
}
function showtime ()
{
hours = 0
seconds = seconds+1
if (seconds >59)
{
seconds=1
minutes = minutes+1;
}if (minutes > 59)
{
minutes=1
hours =hours+1
}var timeValue = hours+":"+minutes+":"+seconds;
document.clock.thetime.value = timeValue;
timerID = setTimeout("showtime()",1000);
timerRunning = true;
}
</SCRIPT>
<body onload=startclock()>
<form name=clock >
<input name=thetime style="font-size: 9pt;color:#000000;border:0" size=12>
</form>
</body>
<script language=JavaScript>
var timerID = null;
var timerRunning = false;var hours = 0
var minutes = 0
var seconds = 0function stopclock ()
{
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}function startclock ()
{
stopclock();
showtime();
}
function showtime ()
{
hours = 0
seconds = seconds+1
if (seconds >59)
{
seconds=1
minutes = minutes+1;
}if (minutes > 59)
{
minutes=1
hours =hours+1
}var timeValue = hours+":"+minutes+":"+seconds;
document.clock.thetime.value = timeValue;
timerID = setTimeout("showtime()",1000);
timerRunning = true;
}
</SCRIPT>
<body onload=startclock()>
<form name=clock >
<input name=thetime style="font-size: 9pt;color:#000000;border:0" size=12>
</form>
</body>
<head>
<script>
var timerID = null;
var timerRunning = false;
var paused = false;var hours = 0;
var minutes = 0;
var seconds = 0;function stopclock() {
if (timerRunning) clearTimeout(timerID);
timerRunning = false;
}function startclock() {
hours = minutes = seconds = 0;
paused = false;
stopclock();
showtime();
}function showtime() {
if (paused) return;
hours = 0
seconds = seconds + 1
if (seconds > 59) {
seconds = 1
minutes = minutes + 1;
} if (minutes > 59) {
minutes = 1
hours = hours + 1
} var timeValue = hours + ":" + minutes + ":" + seconds;
document.clock.thetime.value = timeValue;
timerID = setTimeout("showtime()", 1000);
timerRunning = true;
}function pauseclock() {
paused = !paused;
if (paused) {
if (timerRunning) clearTimeout(timerID);
timerRunning = false;
} else {
timerID = setTimeout("showtime()", 1000);
timerRunning = true;
}
}
</script>
</head>
<body onload="startclock()">
<form name="clock">
<input name="thetime" style="font-size:9pt;color:#000000;border:0" size="12"/>
</form>
<input type="button" value="暂停/运行" onclick="pauseclock()"/>
<input type="button" value="重新开始" onclick="startclock()"/>
</body>
</html>
<script type="text/javascript">
var timerID = null;
var timerRunning = false;var hours = 0
var minutes = 0
var seconds = 0function stopclock ()
{
if(timerRunning){
clearTimeout(timerID);
timerRunning = false;
}else{
timerRunning = true;
}
}function startclock ()
{
stopclock();
showtime();
}
function showtime ()
{
if(!timerRunning) return false;
seconds = seconds+1;
if (seconds >59)
{
seconds=0;
minutes = minutes+1;
} if (minutes > 59)
{
minutes=0;
hours =hours+1
}
var timeValue = hours+":"+minutes+":"+seconds;
document.clock.thetime.value = timeValue;
timerID = setTimeout("showtime()",1000);
}
</script>