Answered JavaScript HELP, getMilliseconds in one desimal

<html>
<head>
<script type="text/javascript">
function startTime()
{
var today=new Date();
var h=today.getHours();
var m=today.getMinutes();
var s=today.getSeconds();
var ms=today.getMilliseconds();
// add a zero in front of numbers<10
m=checkTime(m);
s=checkTime(s);

document.getElementById('txt').innerHTML=h+"."+m+"."+s+","+ms;
t=setTimeout('startTime()',100);
}

function checkTime(i)
{
if (i<10)
{
i="0" + i;
}
return i;
}
</script>
</head>

<body onload="startTime()">

<div id="txt"></div>

</body>
</html>

// I put 456 as millisec just for example
var millisec =  456;
var firstnum = millisec(substr(0,1)); // returns firstnum = 4 

var ms=today.getMilliseconds();

var ms=(today.getMilliseconds()/100).toFixed(0);