Help on auto submit a form having two submit button

Hello,

I am working on testing tool software (phpTest)written in php and trying to put a timer/countdown on it. I used javascript on countdown, it works when I only put an alert but when I used document.test.submit(), it only refreshes the page and not moving on to the next question. I have posted my problem here coz my prob might lies on the my javascript, Is there any way to triger the action that I want to press the next button and not just refresh the page?

[javascript]
<script LANGUAGE="Javascript"><!--
function go_on()
{
document.test.submit();
}

var i=5;
function countDown()
{
if(i >= 0)
{
document.frm.clock.value=i;
i = i-1;
var c = window.setTimeout("countDown()", 1000);
}
else
{
go_on();
}
}
//--></SCRIPT>
[/javascript]



Thanks in advance,
Army