Code:
/*This is time counter -it will update every minute
I want to get the value from javascript and save it to database?
*/

<form name="myForm" method="post">

<script type="text/javascript"> 
var num = 0;
function IncCounter() { 
num = num + 1;   // increment counter by 2
document.myForm.counter.value = num;
t = setTimeout('IncCounter()', 600);
...