document.write("<span id='time' style='font-weight: normal;'>");

var today=new Date();
var h=today.getHours();
var m=today.getMinutes();
var s;
m=checkTime(m);
s=getSuffix(h);
h=makeTwelve(h);

document.write(h+":"+m+s);

document.write("</span>");

function startTime()
{
  var today=new Date();
  var h=today.getHours();
  var m=today.getMinutes();
  var s;
  m=checkTime(m);
  s=getSuffix(h);
  h=makeTwelve(h);
  document.getElementById('time').innerHTML=h+":"+m+s;
  t=setTimeout('startTime()',500);
}

function getSuffix(i)
{
  if (i>12) { return "pm"; }
  else { return "am"; }
}

function makeTwelve(i)
{
  if (i>12) { return i - 12; }
  else { return i; }
}

function checkTime(i)
{
  if (i<10) {i="0" + i;}
  return i;
}