// www.wizzardweb.co.uk

var i = 0;
var done = 0;
var totalSecs = 20;
function SecondPast() {
if(totalSecs != null) timerId = setTimeout("SecondPast()", 1000);
if(i < totalSecs) {
i += 1;
document.form1.seconds.value = totalSecs - i;
   }
}
function doSub() {
if(i < totalSecs) {
done = true;
}
else {
alert("Sorry! Your session timed out.");
done = false;
}
return done;
}