diff --git a/docs/events-and-sources.txt b/docs/events-and-sources.txt
index af896fc..5df6448 100644
--- a/docs/events-and-sources.txt
+++ b/docs/events-and-sources.txt
@@ -29,13 +29,13 @@ The following options determine *how* events get on the calendar:
 					start: start.getTime(),
 					end: end.getTime()
 				},
-				function(result) {
+				function(events) {
 				
-					// format the result into an array of CalEvents
+					// make sure the events are official CalEvent objects
 					// (not seen here)
 					
-					// then, pass the CalEvent array to the callback
-					callback(calevents);
+					// then, pass the events to the callback
+					callback(events);
 				
 				});
 		
@@ -124,4 +124,4 @@ CalEvent:
 **source**: Array/String/Function (automatically populated)
 	A reference to the original array, JSON URL, or function the event
 	came from. Do not worry about populating this value, FullCalendar will
-	do this automatically.
\ No newline at end of file
+	do this automatically.
diff --git a/docs/index.txt b/docs/index.txt
index 12efc4f..98484e2 100644
--- a/docs/index.txt
+++ b/docs/index.txt
@@ -116,7 +116,7 @@ Basic Options
 	of the calendar. When hidden with ``false``, all-day events will not be displayed
 	in agenda views.
 	
-**allDayText**: Boolean, *Default*: ``'all-day'``
+**allDayText**: String, *Default*: ``'all-day'``
 	In the agenda views, the text titling the "all-day" slot at the top of the calendar.
 	
 **firstHour**: Integer, *Default*: 6
diff --git a/examples/json.html b/examples/json.html
index de892ee..b5ecd6b 100644
--- a/examples/json.html
+++ b/examples/json.html
@@ -34,6 +34,7 @@
 			editable: true,
 			
 			events: "json-events.php",
+			cache: false,
 			
 			eventDrop: function(event, delta) {
 				alert(event.title + ' was moved ' + delta + ' days\n' +
@@ -77,4 +78,4 @@
 <div id='calendar'></div>
 <p>json-events.php needs to be running in the same directory.</p>
 </body>
-</html>
\ No newline at end of file
+</html>
diff --git a/src/gcal.js b/src/gcal.js
index c1ee7c4..1f49b09 100644
--- a/src/gcal.js
+++ b/src/gcal.js
@@ -24,8 +24,9 @@
 				'singleevents': true,
 				'max-results': 9999
 			};
-			if (options.currentTimezone) {
-				params.ctz = options.currentTimezone.replace(' ', '_');
+			var ctz = options.currentTimezone;
+			if (ctz) {
+				params.ctz = ctz = ctz.replace(' ', '_');
 			}
 			$.getJSON(feedUrl + "?alt=json-in-script&callback=?", params, function(data) {
 				var events = [];
@@ -39,6 +40,9 @@
 						$.each(entry.link, function() {
 							if (this.type == 'text/html') {
 								url = this.href;
+								if (ctz) {
+									url += (url.indexOf('?') == -1 ? '?' : '&') + 'ctz=' + ctz;
+								}
 							}
 						});
 						if (allDay) {
diff --git a/src/main.js b/src/main.js
index 11aa144..69d80ec 100644
--- a/src/main.js
+++ b/src/main.js
@@ -28,7 +28,7 @@ var defaults = {
 	// event ajax
 	startParam: 'start',
 	endParam: 'end',
-	cacheParam: '_',
+	cache: false,
 	
 	// time formats
 	titleFormat: {
@@ -147,9 +147,9 @@ $.fn.fullCalendar = function(options) {
 		
 		// element
 		var _element = this,
-			element = $(this).addClass('fc'),
+			element = $(_element).addClass('fc'),
 			elementWidth,
-			content = $("<div class='fc-content " + tm + "-widget-content' style='position:relative'/>").appendTo(this), // relative for ie6
+			content = $("<div class='fc-content " + tm + "-widget-content' style='position:relative'/>").prependTo(_element), // relative for ie6
 			contentHeight;
 		if (options.isRTL) {
 			element.addClass('fc-rtl');
@@ -338,16 +338,17 @@ $.fn.fullCalendar = function(options) {
 			var prevViewName = view.name,
 				prevDate = cloneDate(date),
 				reportEvents = function(a) {
-					if (prevViewName == view.name && +prevDate == +date) { // protects from fast switching
-						for (var i=0; i<a.length; i++) {
-							normalizeEvent(a[i], options);
-							a[i].source = src;
+					if (prevViewName == view.name && +prevDate == +date && // protects from fast switching
+						$.inArray(src, eventSources) != -1) {              // makes sure source hasn't been removed
+							for (var i=0; i<a.length; i++) {
+								normalizeEvent(a[i], options);
+								a[i].source = src;
+							}
+							events = events.concat(a);
+							if (callback) {
+								callback(a);
+							}
 						}
-						events = events.concat(a);
-						if (callback) {
-							callback(a);
-						}
-					}
 				},
 				reportEventsAndPop = function(a) {
 					reportEvents(a);
@@ -357,9 +358,17 @@ $.fn.fullCalendar = function(options) {
 				var params = {};
 				params[options.startParam] = Math.round(eventStart.getTime() / 1000);
 				params[options.endParam] = Math.round(eventEnd.getTime() / 1000);
-				params[options.cacheParam] = (new Date()).getTime();
+				if (options.cacheParam) {
+					params[options.cacheParam] = (new Date()).getTime(); // TODO: deprecate cacheParam
+				}
 				pushLoading();
-				$.getJSON(src, params, reportEventsAndPop);
+				$.ajax({
+					url: src,
+					dataType: 'json',
+					data: params,
+					cache: options.cache,
+					success: reportEventsAndPop
+				});
 			}
 			else if ($.isFunction(src)) {
 				pushLoading();
@@ -422,6 +431,15 @@ $.fn.fullCalendar = function(options) {
 				}
 			},
 			
+			destroy: function() {
+				$(window).unbind('resize', windowResize);
+				if (header) {
+					header.remove();
+				}
+				content.remove();
+				$.removeData(_element, 'fullCalendar');
+			},
+			
 			//
 			// Navigation
 			//
@@ -739,7 +757,7 @@ $.fn.fullCalendar = function(options) {
 			}
 		}
 		
-		$(window).resize(function() {
+		function windowResize() {
 			if (!contentSizeFixed) {
 				if (view.date) { // view has already been rendered
 					var rcnt = ++resizeCnt; // add a delay
@@ -758,7 +776,8 @@ $.fn.fullCalendar = function(options) {
 					// was probably in a 0x0 iframe that has just been resized
 				}
 			}
-		});
+		};
+		$(window).resize(windowResize);
 		
 		
 		// let's begin...
diff --git a/src/util.js b/src/util.js
index 73519a0..82344ea 100644
--- a/src/util.js
+++ b/src/util.js
@@ -32,23 +32,29 @@ function addMonths(d, n, keepTime) { // prevents day overflow/underflow
 }
 
 function addDays(d, n, keepTime) { // deals with daylight savings
-	if (+d) { // prevent infinite looping on invalid dates
+	if (+d) {
 		var dd = d.getDate() + n,
 			check = cloneDate(d);
-		check.setHours(12); // set to middle of day
+		check.setHours(9); // set to middle of day
 		check.setDate(dd);
 		d.setDate(dd);
 		if (!keepTime) {
 			clearTime(d);
 		}
-		while (d.getDate() != check.getDate()) {
-			d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
-		}
+		fixDate(d, check);
 	}
 	return d;
 }
 fc.addDays = addDays;
 
+function fixDate(d, check) { // force d to be on check's YMD, for daylight savings purposes
+	if (+d) { // prevent infinite looping on invalid dates
+		while (d.getDate() != check.getDate()) {
+			d.setTime(+d + (d < check ? 1 : -1) * HOUR_MS);
+		}
+	}
+}
+
 function addMinutes(d, n) {
 	d.setMinutes(d.getMinutes() + n);
 	return d;
@@ -101,31 +107,50 @@ var parseDate = fc.parseDate = function(s) {
 		if (s.match(/^\d+$/)) { // a UNIX timestamp
 			return new Date(parseInt(s) * 1000);
 		}
-		return parseISO8601(s, true) || new Date(s) || null;
+		return parseISO8601(s, true) || (s ? new Date(s) : null);
 	}
 	return null;
 }
 
 var parseISO8601 = fc.parseISO8601 = function(s, ignoreTimezone) {
 	// derived from http://delete.me.uk/2005/03/iso8601.html
-	var d = s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?$/);
-	if (!d) return null;
-	var offset = 0;
-	var date = new Date(d[1], 0, 1);
-	if (d[3]) { date.setMonth(d[3] - 1); }
-	if (d[5]) { date.setDate(d[5]); }
-	if (d[7]) { date.setHours(d[7]); }
-	if (d[8]) { date.setMinutes(d[8]); }
-	if (d[10]) { date.setSeconds(d[10]); }
-	if (d[12]) { date.setMilliseconds(Number("0." + d[12]) * 1000); }
+	var m = s.match(/^([0-9]{4})(-([0-9]{2})(-([0-9]{2})([T ]([0-9]{2}):([0-9]{2})(:([0-9]{2})(\.([0-9]+))?)?(Z|(([-+])([0-9]{2}):([0-9]{2})))?)?)?)?$/);
+	if (!m) {
+		return null;
+	}
+	var date = new Date(m[1], 0, 1),
+		check = new Date(m[1], 0, 1, 9, 0),
+		offset = 0;
+	if (m[3]) {
+		date.setMonth(m[3] - 1);
+		check.setMonth(m[3] - 1);
+	}
+	if (m[5]) {
+		date.setDate(m[5]);
+		check.setDate(m[5]);
+	}
+	fixDate(date, check);
+	if (m[7]) {
+		date.setHours(m[7]);
+	}
+	if (m[8]) {
+		date.setMinutes(m[8]);
+	}
+	if (m[10]) {
+		date.setSeconds(m[10]);
+	}
+	if (m[12]) {
+		date.setMilliseconds(Number("0." + m[12]) * 1000);
+	}
+	fixDate(date, check);
 	if (!ignoreTimezone) {
-		if (d[14]) {
-			offset = (Number(d[16]) * 60) + Number(d[17]);
-			offset *= ((d[15] == '-') ? 1 : -1);
+		if (m[14]) {
+			offset = Number(m[16]) * 60 + Number(m[17]);
+			offset *= m[15] == '-' ? 1 : -1;
 		}
 		offset -= date.getTimezoneOffset();
 	}
-	return new Date(Number(date) + (offset * 60 * 1000));
+	return new Date(+date + (offset * 60 * 1000));
 }
 
 var parseTime = fc.parseTime = function(s) { // returns minutes since start of day
diff --git a/tests/gcal.html b/tests/gcal.html
index 1d3dba0..0642dc1 100644
--- a/tests/gcal.html
+++ b/tests/gcal.html
@@ -22,10 +22,10 @@
 					}
 				),
 				$.fullCalendar.gcalFeed(
-					"http://www.google.com/calendar/feeds/b62ul6i1vvfh9vqabsal835028%40group.calendar.google.com/public/basic",
+					"http://www.google.com/calendar/feeds/b62ul6i1vvfh9vqabsal835028%40group.calendar.google.com/public/basic", // most recent event in Nov 2009
 					{
 						editable: true,
-						currentTimezone: 'America/Los_Angeles' //'America/Los Angeles'
+						currentTimezone: 'America/Edmonton' // 'America/Los_Angeles' 'America/Los Angeles'
 					}
 				)
 			],
diff --git a/tests/issue_206_parseDate_dst.html b/tests/issue_206_parseDate_dst.html
new file mode 100644
index 0000000..805b965
--- /dev/null
+++ b/tests/issue_206_parseDate_dst.html
@@ -0,0 +1,58 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+<head>
+<link rel='stylesheet' type='text/css' href='../examples/redmond/theme.css' />
+<script type='text/javascript' src='loader.js'></script>
+<script type='text/javascript'>
+
+	// set your time to Tehran time (GMT+03:30)
+	// (recreated on a Windows XP machine, after restarting)
+
+	$(document).ready(function() {
+	
+		var date = new Date();
+		var d = date.getDate();
+		var m = date.getMonth();
+		var y = date.getFullYear();
+		
+		$('#calendar').fullCalendar({
+			year: 2010,
+			month: 2,
+			header: {
+				left: 'prev,next today',
+				center: 'title',
+				right: 'month,agendaWeek,basicWeek,agendaDay,basicDay'
+			},
+			editable: true,
+			events: [
+				{
+					title: 'Yay Tehran!',
+					start: '2010-03-21' // should NOT show up on the 20th
+					//allDay: false // if uncommented, will show 1am
+				}
+			]
+		});
+		
+	});
+
+</script>
+<style type='text/css'>
+
+	body {
+		margin-top: 40px;
+		text-align: center;
+		font-size: 13px;
+		font-family: "Lucida Grande",Helvetica,Arial,Verdana,sans-serif;
+		}
+
+	#calendar {
+		width: 900px;
+		margin: 0 auto;
+		}
+
+</style>
+</head>
+<body>
+<div id='calendar'></div>
+</body>
+</html>
diff --git a/tests/issue_221_quick_remove_source.html b/tests/issue_221_quick_remove_source.html
new file mode 100644
index 0000000..bf37789
--- /dev/null
+++ b/tests/issue_221_quick_remove_source.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+<head>
+<script type='text/javascript' src='loader.js'></script>
+<script type='text/javascript'>
+
+	var date = new Date();
+	var d = date.getDate();
+	var m = date.getMonth();
+	var y = date.getFullYear();
+	
+	var gcalFeed = $.fullCalendar.gcalFeed("http://www.google.com/calendar/feeds/usa__en%40holiday.calendar.google.com/public/basic");
+
+	$(document).ready(function() {
+	
+		var cal = $('#calendar').fullCalendar({
+			header: {
+				left: 'prev,next today',
+				center: 'title',
+				right: 'month,agendaWeek,basicWeek,agendaDay,basicDay'
+			},
+			loading: function(bool) {
+				if (bool) {
+					$('#loading').show();
+				}else{
+					$('#loading').hide();
+				}
+			}
+		});
+		
+		cal.fullCalendar('addEventSource', gcalFeed);
+		cal.fullCalendar('removeEventSource', gcalFeed);
+		
+		// events should not be rendered when jsonp returns!
+		
+	});
+
+</script>
+<style>
+
+	.red-event a {
+		background: red;
+	}
+	
+	.yellow-event a {
+		background: yellow;
+	}
+	
+	.black-text-event a {
+		color: #000;
+	}
+
+	button {
+		font-size: 11px;
+	}
+
+</style>
+</head>
+<body style='font-size:12px'>
+<div id='loading' style='position:absolute;top:0;left:0;display:none'>loading...</div>
+<div id='calendar' style='width:900px;margin:20px auto 0;font-family:arial'></div>
+</body>
+</html>
diff --git a/tests/issue_251_empty_end_date.html b/tests/issue_251_empty_end_date.html
new file mode 100644
index 0000000..ea155f2
--- /dev/null
+++ b/tests/issue_251_empty_end_date.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+<head>
+<link rel='stylesheet' type='text/css' href='../examples/redmond/theme.css' />
+<script type='text/javascript' src='loader.js'></script>
+<script type='text/javascript'>
+
+	$(document).ready(function() {
+	
+		var date = new Date();
+		var d = date.getDate();
+		var m = date.getMonth();
+		var y = date.getFullYear();
+		
+		$('#calendar').fullCalendar({
+			header: {
+				left: 'prev,next today',
+				center: 'title',
+				right: 'month,agendaWeek,basicWeek,agendaDay,basicDay'
+			},
+			editable: true,
+			events: [
+				{
+					title: 'All Day Event',
+					start: new Date(y, m, 1),
+					end: 'h' // shouldn't choke on empty string
+				}
+			]
+		});
+		
+	});
+
+</script>
+<style type='text/css'>
+
+	body {
+		margin-top: 40px;
+		text-align: center;
+		font-size: 13px;
+		font-family: "Lucida Grande",Helvetica,Arial,Verdana,sans-serif;
+		}
+
+	#calendar {
+		width: 900px;
+		margin: 0 auto;
+		}
+
+</style>
+</head>
+<body>
+<div id='calendar'></div>
+</body>
+</html>
diff --git a/tests/method_destroy.html b/tests/method_destroy.html
new file mode 100644
index 0000000..11a7177
--- /dev/null
+++ b/tests/method_destroy.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html>
+<head>
+<link rel='stylesheet' type='text/css' href='../examples/redmond/theme.css' />
+<script type='text/javascript' src='loader.js'></script>
+<script type='text/javascript'>
+
+	$(document).ready(function() {
+		
+		var cal = $('#calendar').fullCalendar({
+			header: {
+				left: 'prev,next today',
+				center: 'title',
+				right: 'month,agendaWeek,basicWeek,agendaDay,basicDay'
+			}
+		});
+		
+		console.log(cal.data('fullCalendar'));
+		
+		cal.fullCalendar('destroy');
+		
+		console.log(cal.data('fullCalendar'));
+		
+	});
+
+</script>
+<style type='text/css'>
+
+	body {
+		margin-top: 40px;
+		text-align: center;
+		font-size: 13px;
+		font-family: "Lucida Grande",Helvetica,Arial,Verdana,sans-serif;
+		}
+
+	#calendar {
+		width: 900px;
+		margin: 0 auto;
+		}
+
+</style>
+</head>
+<body>
+<div id='calendar'>some text in here</div>
+</body>
+</html>