$(function() {
	window.onload = set_timezone;

	function set_timezone() {
		var localTime = new Date();
		//this one will give you the GMT offset
		var local_timezone = localTime.getTimezoneOffset()/60 * (-1);
		
		//if (local_timezone != session_timezone) {
			// ajax - update session
			$.post(site_url + "timezone/set", {timezone:local_timezone});
		//}
	}
});