var timerID = null;

var timerRunning = false;

function stopclock (){
	if(timerRunning)
		clearTimeout(timerID);
	timerRunning = false;
}



function showtime() {
	var now = new Date();
	var hours = now.getHours();
	var minutes = now.getMinutes();
	var seconds = now.getSeconds()

	var timeValue = "" + ((hours >12) ? hours -12 :hours)

	timeValue += ((minutes < 10) ? ":0" : ":") + minutes
	timeValue += ((seconds < 10) ? ":0" : ":") + seconds
	timeValue += (hours >= 12) ? " PM" : " AM"

        window.status = timeValue;

        timerID = setTimeout("showtime()",1000);
        timerRunning = true;
}



function startclock () {
	stopclock();
	showtime();
}