function setTimeZoneSelectList(oSelect) {
   var cStdOffset = getStdTimeZoneOffset();
   var i;
   for (i=0; i < oSelect.options.length; i++) {
	if (oSelect.options[i].value == cStdOffset) {
		oSelect.selectedIndex = i;
		break;
	}
   }
}
function getStdTimeZoneOffset(){
   var rightNow = new Date();
   var jan1 = new Date(rightNow.getFullYear(), 0, 1, 0, 0, 0, 0);  // jan 1st
   var june1 = new Date(rightNow.getFullYear(), 6, 1, 0, 0, 0, 0); // june 1st
   var temp = jan1.toGMTString();
   var jan2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
   temp = june1.toGMTString();
   var june2 = new Date(temp.substring(0, temp.lastIndexOf(" ")-1));
   var std_time_offset = (jan1 - jan2) / (1000 * 60 * 60);
   var daylight_time_offset = (june1 - june2) / (1000 * 60 * 60);
   var dst;
   if (std_time_offset == daylight_time_offset) {
		dst = "0"; // daylight savings time is NOT observed
   } else {
   		// positive is southern, negative is northern hemisphere
		var hemisphere = std_time_offset - daylight_time_offset;
		if (hemisphere >= 0)
			std_time_offset = daylight_time_offset;
		dst = "1"; // daylight savings time is observed
   }
   return convertStdTimeZoneOffset(std_time_offset) + ',' + dst;	
}
function convertStdTimeZoneOffset(value) {
	var hours = parseInt(value);
	value -= parseInt(value);
	value *= 60;
	var mins = parseInt(value);
	value -= parseInt(value);
	value *= 60;
	var secs = parseInt(value);
	var display_hours = hours;
	display_hours = (hours < 10 && hours > 0) ? "+0"+hours : "+"+hours; // positive
	display_hours = (hours == 0) ? "0"+hours : display_hours; // handle GMT case (00:00)
	display_hours = (hours < 0 && hours > -10) ? "-0"+Math.abs(hours) : display_hours; // neg
	mins = (mins < 10) ? "0"+mins : mins;
	return display_hours+":"+mins;
}