format: function(timespan, format) {
			if (!timespan)
				return "N/A";

			switch (format) {
				case "d": return Math.ceil(timespan / slworx.timespan.ticks.day);
				case "dhm":
					var segments = [];
					$.each({
							d: Math.floor(timespan / slworx.timespan.ticks.day),
							h: Math.floor(timespan / slworx.timespan.ticks.hour) % 60,
							m: Math.floor(timespan / slworx.timespan.ticks.minute) % 60
						}, function(key, value) {
							if (value)
								segments.push(value + key);
						});
					return segments.join(" ");
				case "hm":
					var segments = [];
					$.each({
							h: Math.floor(timespan / slworx.timespan.ticks.hour) % 60,
							m: Math.floor(timespan / slworx.timespan.ticks.minute) % 60
						}, function(key, value) {
							if (value)
								segments.push(value + key);
						});
					return segments.join(" ");
				case "hh:mmtt": return slworx.date.format(new Date().setTime(timespan), format);

			}