The code is very simple, directly on the code, you can copy the following code saved into an HTML file to run look at the effect
Copy Code code as follows:
<! DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 transitional//en" "Http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd ">
<body>
<script language= "JavaScript" >
function Change (hoursurplus,minutesurplus,secondsurplus)
{
Secondsurplus = SecondSurplus-1;
if (secondsurplus<0)
{
Secondsurplus=60+secondsurplus;
minutesurplus=minutesurplus-1;
}
if (minutesurplus<0)
{
Minutesurplus=60+minutesurplus;
hoursurplus=hoursurplus-1;
}
document.getElementById ("ASD"). Innerhtml= "" + Hoursurplus + ":" + Minutesurplus + ":" + Secondsurplus + "";
settimeout (function () {
Change (Hoursurplus,minutesurplus,secondsurplus);
},1000);
}
</script>
<span id= "ASD" >11111</span>
<script language= "JavaScript" >
Change (1,59,59);
</script>
</body>