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<TITLE>setInterval Method</TITLE>
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<SCRIPT>
var oInterval="";
function fnStartInterval(){
if(oInterval==""){
oTimer.innerHTML="Interval Started";
oInterval=window.setInterval("fnRecycle()",1000);
}
else{
fnStopInterval();
}
}
function fnStopInterval(){
if(oInterval!=""){
window.clearInterval(oInterval);
oInterval="";
oTimer.innerHTML="Interval Stopped";
}
}
function fnRecycle(){
var oDate=new Date();
var sSwitch="am";
var iHours=oDate.getHours();
if(iHours>12){
iHours-=12;
sSwitch="pm";
}
var sMinutes=oDate.getMinutes() + "";
if(sMinutes.length==1){
sMinutes="0" + sMinutes;
}
var sSeconds=oDate.getSeconds() + "";
if(sSeconds.length==1){
sSeconds="0" + sSeconds;
}
oTimer.innerHTML=iHours + ":" + sMinutes + ":" + sSeconds + " " + sSwitch;
}
</SCRIPT>
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<BLOCKQUOTE CLASS="body">
<H1>setInterval Method</H1>
<P>The <b>setInterval</b> method invokes a function or line of code every time the specified amount of time passes.
In this sample, a function is called to update the <b>innerHTML</b> property of a <b>SPAN</b> with the current time every 1000 milliseconds, or every second.
Click Start Interval to invoke the <b>setInterval</b> method.
Click Stop Interval to remove the interval with the <b>clearInterval</b> method.
</P>
<SPAN ID=oTimer STYLE="font-size: 16pt; font-weight: bold; font-family: Times; color: #0000FF;">Interval Stopped</SPAN>
<P>
<INPUT TYPE=button VALUE="Start Interval" onclick="fnStartInterval()">
<INPUT TYPE=button VALUE="Stop Interval" onclick="fnStopInterval()">
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