var BrowserTimeZone = {
		dst: null,
		offset: null,
		
		init : function(){
			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
			}
			if(std_time_offset > 0){
				std_time_offset = "+" + std_time_offset;
			}	
			
			BrowserTimeZone.dst = dst;
			BrowserTimeZone.offset = std_time_offset;
		}
}