function init(){
timeDisplay=document.createTextNode("")
document.getElementById("clock").appendChild(timeDisplay)}
function updateClock(){
var currentTime=new Date()
var currentHours=currentTime.getHours()
var currentMinutes=currentTime.getMinutes()
var currentSeconds=currentTime.getSeconds()
currentMinutes=(currentMinutes<10 ? "0" : "")+currentMinutes
currentSeconds=(currentSeconds<10 ? "0" : "")+currentSeconds
var timeOfDay=(currentHours<12)? "AM" : "PM"
currentHours=(currentHours>12)? currentHours-12 : currentHours
currentHours=(currentHours==0)? 12 : currentHours
var currentTimeString=currentHours+":"+currentMinutes+":"+currentSeconds+" "+timeOfDay
document.getElementById("clock").firstChild.nodeValue=currentTimeString}