var timerID ;
function tzone(tz, os, ds, cl)
{
this.ct = new Date(0) ;                // datetime
this.tz = tz ;                // code
this.os = os ;                // GMT offset
this.ds = ds ;                // has daylight savings
this.cl = cl ;                // font color
}

function UpdateClocks() {
// www.timeanddate.com/worldclock
var ct = new Array(
new tzone('´º¿å: ', -5, 1, '#333333'),
new tzone('ÀϺ»: ', +9, 0, '#333333'),
new tzone('·±´ø: ', +0, 1, '#333333'),
new tzone('À¯·´: ', +0, 0, '#333333') ) ;

var dt = new Date() ;        // [GMT] time according to machine clock
var startDST = new Date(dt.getFullYear(), 3, 1) ;
while (startDST.getDay() != 0)
startDST.setDate(startDST.getDate() + 1) ;

var endDST = new Date(dt.getFullYear(), 9, 31) ;
while (endDST.getDay() != 0)
endDST.setDate(endDST.getDate() - 1) ;

var ds_active ;                // DS currently active
if (startDST < dt && dt < endDST)
ds_active = 1 ;
else
ds_active = 0 ;

// Adjust each clock offset if that clock has DS and in DS.
for(n=0 ; n<ct.length ; n++)
if (ct[n].ds == 1 && ds_active == 1) ct[n].os++ ;

// compensate time zones
gmdt = new Date() ;
for (n=0 ; n<ct.length ; n++)
ct[n].ct = new Date(gmdt.getTime() + ct[n].os * 3600 * 1000) ;
document.all.Clock0.innerHTML = ClockString(ct[0].ct);
document.all.Clock1.innerHTML = ClockString(ct[1].ct);
document.all.Clock2.innerHTML = ClockString(ct[2].ct);
document.all.Clock3.innerHTML = ClockString(ct[3].ct);
timerID = window.setTimeout("UpdateClocks()", 1001) ;
}
function ClockString(dt) {
var stemp, ampm ;
var dt_year = dt.getUTCFullYear() ;
var dt_month = dt.getUTCMonth() + 1 ;
var dt_day = dt.getUTCDate() ;
var dt_hour = dt.getUTCHours() ;
var dt_minute = dt.getUTCMinutes() ;
var dt_second = dt.getUTCSeconds() ;
dt_year = dt_year.toString() ;
if (0 <= dt_hour && dt_hour < 12) {
ampm = 'AM' ;
if (dt_hour == 0) dt_hour = 12 ;                
} else {
ampm = 'PM' ;
dt_hour = dt_hour - 12 ;
if (dt_hour == 0) dt_hour = 12 ;}
if (dt_hour < 10)
dt_hour = '0' + dt_hour ;
if (dt_minute < 10)
dt_minute = '0' + dt_minute ;
if (dt_second < 10)
dt_second = '0' + dt_second ;
if (dt_month < 10)
dt_month = '0' + dt_month ;
if (dt_day < 10)
dt_day = '0' + dt_day ;

//stemp = dt_year.substr(2,2) + '/' + dt_month + '/' + dt_day ;
stemp = dt_year + '/' + dt_month + '/' + dt_day ;
stemp = stemp + ' ' + dt_hour + ":" + dt_minute + ":" + dt_second + ampm ;
return stemp ;
}