<table border="0" width="200" cellspacing="0" cellpadding="3">
<form name="where">
  <tr>
    <td width="100%">
<select name="city" size="1" onchange="updateclock(this);">
<option value="" selected>Helyi idő</option>
<option value="0">London GMT</option>
<option value="1">Rome</option>
<option value="7">Bangkok</option>
<option value="8">Hong Kong</option>
<option value="9">Tokyo</option>
<option value="10">Sydney</option>
<option value="12">Fiji</option>
<option value="-10">Hawaii</option>
<option value="-8">San Francisco</option>
<option value="-5">New York</option>
<option value="-3">Buenos Aires</option>
</select>

</td>
  </tr>
  <tr>
    <td width="100%">
<script language="JavaScript">

if (document.all||document.getElementById)
document.write('<span id="worldclock" style="font:bold 16px Arial;"></span><br>')

zone=0;
isitlocal=true;
ampm='';

function updateclock(z){
zone=z.options[z.selectedIndex].value;
isitlocal=(z.options[0].selected)?true:false;
}

function WorldClock(){
now=new Date();
ofst=now.getTimezoneOffset()/60;
secs=now.getSeconds();
sec=-1.57+Math.PI*secs/30;
mins=now.getMinutes();
min=-1.57+Math.PI*mins/30;
hr=(isitlocal)?now.getHours():(now.getHours() + parseInt(ofst)) + parseInt(zone);
hrs=-1.575+Math.PI*hr/6+Math.PI*parseInt(now.getMinutes())/360;
if (hr < 0) hr+=24;
if (hr > 23) hr-=24;
ampm = (hr > 11)?"PM":"AM";
statusampm = ampm.toLowerCase();

hr2 = hr;
if (hr2 == 0) hr2=12;
(hr2 < 13)?hr2:hr2 %= 12;
if (hr2<10) hr2="0"+hr2

var finaltime=hr2+':'+((mins < 10)?"0"+mins:mins)+':'+((secs < 10)?"0"+secs:secs)+' '+statusampm;

if (document.all)
worldclock.innerHTML=finaltime
else if (document.getElementById)
document.getElementById("worldclock").innerHTML=finaltime
else if (document.layers){
document.worldclockns.document.worldclockns2.document.write(finaltime)
document.worldclockns.document.worldclockns2.document.close()
}

setTimeout('WorldClock()',1000);
}

window.onload=WorldClock
//-->
</script>

<!--Place holder for NS4 only-->
<ilayer id="worldclockns" width=100% height=35><layer id="worldclockns2" width="100" height="35" left="0" top="0" style="font:bold 16px Arial;" z-index="1">
                    <p> </p>
</layer>
                <p></ilayer>

</td>
</form>
  </tr>
</table>