code:
<SCRIPT LANGUAGE = "JavaScript">
<!--
var secs
var timerID = null
var timerRunning = false
var delay = 1000
function InitializeTimer()
{
// Set the length of the timer, in seconds
secs = 10
StopTheClock()
StartTheTimer()
}
function StopTheClock()
{
if(timerRunning)
clearTimeout(timerID)
timerRunning = false
}
function StartTheTimer()
{
if (secs==0)
{
StopTheClock()
alert("You have just wasted 10 seconds of your life.")
window.close
}
else
{
self.status = secs
secs = secs - 1
timerRunning = true
timerID = self.setTimeout("StartTheTimer()", delay)
}
}
//-->
</SCRIPT>
then
code:
<body onLoad="InitializeTimer()">
http://www.mcfedries.com/JavaScript/timer.asp
just a edited version of some code i found
/ 
