//Get milliseconds server time (using as a virtual UTC) ServerTime is Melbourne Time

var iMilliSecondsMelbourneTime = 1210380209000;
var iMilliSecondsBrisbaneTime = 1210380209000;
var iMilliSecondsPerthTime = 1210373009000;

//Get the millisecond offset from server time
tDate = new Date();
var iMelbourneMSOffset = iMilliSecondsMelbourneTime - tDate.getTime();
var iBrisbaneMSOffset = iMilliSecondsBrisbaneTime - tDate.getTime();
var iPerthMSOffset = iMilliSecondsPerthTime - tDate.getTime();


var clockTimeOutID = 0;

function RefreshClock() {
   
   //Clear the current timeout
   ClearClockTimeout();

   tDate = new Date();
   iMillisecondsNow = tDate.getTime();

   //Use the UTC time of the Date object as Melbourne time (AUS EST/ESuT)
   tDate.setTime(iMillisecondsNow + iMelbourneMSOffset);
   DisplayClock('ClockMelb');

   //Use the UTC time of the Date object as Brisbane time (AUS EST)
   tDate.setTime(iMillisecondsNow + iBrisbaneMSOffset);
   DisplayClock('ClockBris');

   //Use the UTC time of the Date object as Perth time (AUS WST)
   tDate.setTime(iMillisecondsNow + iPerthMSOffset);
   DisplayClock('ClockPert');
								
   clockTimeOutID = setTimeout("RefreshClock()", 1000);
}

function DisplayClock(ElementID)
{
	document.getElementById(ElementID).innerHTML = 
								LeadingZero(tDate.getUTCHours()) + ":" + 
								LeadingZero(tDate.getUTCMinutes()) + ":" + 
								LeadingZero(tDate.getUTCSeconds());

	//tDate.getUTCDate() + " " + 
	//MonthString(tDate.getUTCMonth()) + " " +
	//tDate.getUTCFullYear() + "<br>" +
}

function StartClock() {
   clockTimeOutID = setTimeout("RefreshClock()", 10);
}

function ClearClockTimeout() {
   if(clockTimeOutID ) {
      clearTimeout(clockTimeOutID );
      clockTimeOutID = 0;
   }
}

function MonthString(iMonth)
{
	switch(iMonth)
	{
		case 0:
		return "Jan";
		case 1:
		return "Feb";
		case 2:
		return "Mar";
		case 3:
		return "Apr";
		case 4:
		return "May";
		case 5:
		return "Jun";
		case 6:
		return "Jul";
		case 7:
		return "Aug";
		case 8:
		return "Sep";
		case 9:
		return "Oct";
		case 10:
		return "Nov";
		case 11:
		return "Dec";
	}
}

function LeadingZero(iNumber)
{
	var sNumber = "";
	sNumber = "0" + iNumber.toString();
	return sNumber.substr(sNumber.length - 2);
}

function InsertClock()
{
 			document.write("<table border=\"0\">");
      document.write("<tr>");
      document.write("<td style=\"color:white;\" colspan=\"2\">Local times in Australia:</td>");
      document.write("</tr>");
      document.write("<tr>");
      document.write("<td style=\"color:white;\">Perth</td>");
      document.write("<td style=\"color:white;\"><span id=\"ClockPert\" style=\"color:white;\"></span></td>");
      document.write("</tr>");
      document.write("<tr>");
      document.write("<td style=\"color:white;\">Brisbane</td>");
      document.write("<td style=\"color:white;\"><span id=\"ClockBris\" style=\"color:white;\"></span></td>");
      document.write("</tr>");
      document.write("<tr>");
      document.write("<td style=\"color:white;\">Melbourne</td>");
      document.write("<td style=\"color:white;\"><span id=\"ClockMelb\" style=\"color:white;\"></span></td>");
      document.write("</tr>");
      document.write("</table>");

    StartClock();
    document.body.onunload += ClearClockTimeout;

}