change js code(timer) to php code....help....!!!

elmo25

Hello all,
i'm got stuck with this javascript.
may i know how to convert this javascript to php code.
Anyone can help me?

Thank you, thank you,thank you.

<title>JavaScript Resources - Timer</title>
<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 = 15
StopTheClock()
StartTheTimer()

}

function StopTheClock()
{
if(timerRunning)
clearTimeout(timerID)
timerRunning = false
}

function StartTheTimer()
{
if (secs==0)
{
StopTheClock()
self.status = ""

    alert(" 10 seconds")
}
else
{
    self.status = secs
    secs = secs - 1
    timerRunning = true
    timerID = self.setTimeout("StartTheTimer()", delay)
}

}