Mega Code Archive
SetInterval() and clearInterval() methods
<![CDATA[
<html>
<head>
<script type="text/javascript">
var intval=""
function start_Int(){
if(intval==""){
intval=window.setInterval("start_clock()",1000)
}else{
stop_Int()
}
}
function stop_Int(){
if(intval!=""){
window.clearInterval(intval)
intval=""
myTimer.innerHTML="Interval Stopped"
}
}
function start_clock(){
var d=new Date()
var sw="am"
var h=d.getHours()
var m=d.getMinutes() + ""
var s=d.getSeconds() + ""
if(h>12){
h-=12
sw="pm"
}
if(m.length==1){
m="0" + m
}
if(s.length==1) {
s="0" + s
}
myTimer.innerHTML=h + ":" + m + ":" + s + " " + sw
}
</script>
</head>
<body>
<span id="myTimer">Interval Stopped</span>
<br><br><br>
<input type="button" value="Start" onclick="start_Int()">
<input type="button" value="Stop" onclick="stop_Int()">
</body>
</html>
]]>