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

function UpdateClocks()

{
	// www.timeanddate.com/worldclock
	var ct = new Array(
		new tzone('', +8, 0),
		new tzone('', -6, 1),
		new tzone('', -1, 1),
		new tzone('', 0, 1),
		new tzone('', 0, 1),
		new tzone('', 0, 1)
	) ;

	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 =
		ct[0].tz + ClockString(ct[0].ct) ;
	document.all.Clock1.innerHTML =
		ct[1].tz + ClockString(ct[1].ct) ;
	document.all.Clock2.innerHTML =
		ct[2].tz + ClockString(ct[2].ct) ;
	document.all.Clock3.innerHTML =
		ct[3].tz + ClockString(ct[3].ct) ;
	document.all.Clock4.innerHTML =
		ct[4].tz + ClockString(ct[4].ct) ;
	document.all.Clock5.innerHTML =
		ct[5].tz + ClockString(ct[5].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.getUTCDay() ;
	var dt_hour = dt.getUTCHours() ;
	var dt_minute = dt.getUTCMinutes() ;
	var dt_second = dt.getUTCSeconds() ;
	dt_year = dt_year.toString() ;

	if (dt_minute < 10)
		dt_minute = '0' + dt_minute ;

	if (dt_second < 10)
		dt_second = '0' + dt_second ;

	if (dt.getUTCDay() == 1)
		dt_day = "Mon";
	else if (dt.getUTCDay() == 2)
		dt_day = "Tue";
	else if (dt.getUTCDay() == 3)
		dt_day = "Wed";
	else if (dt.getUTCDay() == 4)
		dt_day = "Thu";
	else if (dt.getUTCDay() == 5)
		dt_day = "Fri";
	else if (dt.getUTCDay() == 6)
		dt_day = "Sat";
	else
		dt_day = "Sun";

	dt_day = dt_day.toString() ;
	stemp = "<font color=#6699cc>" + dt_day + ' <BR>' + dt_hour + ":" + dt_minute + ":" + dt_second + "</font>";

	return stemp ;

}