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()

{
	var ct = new Array(
		new tzone('Antwerp', +1, 1,'#FFFFFF'),
		new tzone('Barcelona', +1, 1,'#FFFFFF'),
		new tzone('Buenos Aires', -3, 0,'#FFFFFF'),
		new tzone('Frankfurt', +1, 1,'#FFFFFF'),
		new tzone('Geneva', +1, 1,'#FFFFFF'),
		new tzone('Hong Kong', +8, 0,'#FFFFFF'),
		new tzone('Johannesburg', +2, 0,'#FFFFFF'),
		new tzone('London', +0, 1,'#FFFFFF'),
		new tzone('Melbourne', +10, 1,'#FFFFFF'),
		new tzone('Mexico City', -6, 1,'#FFFFFF'),
		new tzone('Miami', -5, 1,'#FFFFFF'),
		new tzone('Monte Carlo', +1, 1,'#FFFFFF'),
		new tzone('Moscow', +3, 1,'#FFFFFF'),
		new tzone('Mumbai', +5.5, 0,'#FFFFFF'),
		new tzone('New York', -5, 1,'#FFFFFF'),
		new tzone('Paris', +1, 1,'#FFFFFF'),
		new tzone('Rio de Janeiro', -2, 1,'#FFFFFF'),
		new tzone('Rome', +1, 1,'#FFFFFF'),
		new tzone('Tel Aviv', +2, 1,'#FFFFFF'),
		new tzone('Tokyo', +9, 0,'#FFFFFF'),
		new tzone('Toronto', -5, 1,'#FFFFFF')
	) ;


	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 =
		'<font color="' + ct[0].cl + '">' + ct[0].tz + ClockString(ct[0].ct) + '</font>' ;

	document.all.Clock1.innerHTML =
		'<font color="' + ct[1].cl + '">' + ct[1].tz + ClockString(ct[1].ct) + '</font>' ;

	document.all.Clock2.innerHTML =
		'<font color="' + ct[2].cl + '">' + ct[2].tz + ClockString(ct[2].ct) + '</font>' ;

	document.all.Clock3.innerHTML =
		'<font color="' + ct[3].cl + '">' + ct[3].tz + ClockString(ct[3].ct) + '</font>' ;

	document.all.Clock4.innerHTML =
		'<font color="' + ct[4].cl + '">' + ct[4].tz + ClockString(ct[4].ct) + '</font>' ;

	document.all.Clock5.innerHTML =
		'<font color="' + ct[5].cl + '">' + ct[5].tz + ClockString(ct[5].ct) + '</font>' ;

	document.all.Clock6.innerHTML =
		'<font color="' + ct[6].cl + '">' + ct[6].tz + ClockString(ct[6].ct) + '</font>' ;

	document.all.Clock7.innerHTML =
		'<font color="' + ct[7].cl + '">' + ct[7].tz + ClockString(ct[7].ct) + '</font>' ;

	document.all.Clock8.innerHTML =
		'<font color="' + ct[8].cl + '">' + ct[8].tz + ClockString(ct[8].ct) + '</font>' ;

	document.all.Clock9.innerHTML =
		'<font color="' + ct[9].cl + '">' + ct[9].tz + ClockString(ct[9].ct) + '</font>' ;

	document.all.Clock10.innerHTML =
		'<font color="' + ct[10].cl + '">' + ct[10].tz + ClockString(ct[10].ct) + '</font>' ;

	document.all.Clock11.innerHTML =
		'<font color="' + ct[11].cl + '">' + ct[11].tz + ClockString(ct[11].ct) + '</font>' ;

	document.all.Clock12.innerHTML =
		'<font color="' + ct[12].cl + '">' + ct[12].tz + ClockString(ct[12].ct) + '</font>' ;

	document.all.Clock13.innerHTML =
		'<font color="' + ct[13].cl + '">' + ct[13].tz + ClockString(ct[13].ct) + '</font>' ;

	document.all.Clock14.innerHTML =
		'<font color="' + ct[14].cl + '">' + ct[14].tz + ClockString(ct[14].ct) + '</font>' ;

	document.all.Clock15.innerHTML =
		'<font color="' + ct[15].cl + '">' + ct[15].tz + ClockString(ct[15].ct) + '</font>' ;

	document.all.Clock16.innerHTML =
		'<font color="' + ct[16].cl + '">' + ct[16].tz + ClockString(ct[16].ct) + '</font>' ;

	document.all.Clock17.innerHTML =
		'<font color="' + ct[17].cl + '">' + ct[17].tz + ClockString(ct[17].ct) + '</font>' ;

	document.all.Clock18.innerHTML =
		'<font color="' + ct[18].cl + '">' + ct[18].tz + ClockString(ct[18].ct) + '</font>' ;

	document.all.Clock19.innerHTML =
		'<font color="' + ct[19].cl + '">' + ct[19].tz + ClockString(ct[19].ct) + '</font>' ;

	document.all.Clock20.innerHTML =
		'<font color="' + ct[20].cl + '">' + ct[20].tz + ClockString(ct[20].ct) + '</font>' ;


	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_minute < 10)
		dt_minute = '0' + dt_minute ;

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

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

	return stemp ;

}