Simply use--> setInterval
Code:
<h1 id="num"></h1>
<script type="text/javascript">
var d=document;
var num=d.getElementById('num');
var count = 5;
function minus() {
if (count==0) {
clearInterval(sub);
num.innerHTML = 'finished';
// add your alert function here
} else {
num.innerHTML = count--;
}
}
var sub = setInterval("minus()",1000);
</script>
Note: adjust the 1000 to a time interval you want.
Building a time function within javascript
Linear Mode
