setDefaults({
	allDaySlot: true,
	allDayText: 'all-day',
	firstHour: 6,
	slotMinutes: 30,
	defaultEventMinutes: 120,
	axisFormat: 'h(:mm)tt',
	timeFormat: {
		agenda: 'h:mm{ - h:mm}'
	},
	dragOpacity: {
		agenda: .5
	},
	minTime: 0,
	maxTime: 24
});


function AgendaView(element, calendar, viewName) {
	var t = this;
	
	
	// exports
	t.renderAgenda = renderAgenda;
	t.setWidth = setWidth;
	t.setHeight = setHeight;
	t.beforeHide = beforeHide;
	t.afterShow = afterShow;
	t.defaultEventEnd = defaultEventEnd;
	t.timePosition = timePosition;
	t.dayOfWeekCol = dayOfWeekCol;
	t.cellDate = cellDate;
	t.cellIsAllDay = cellIsAllDay;
	t.allDayTR = allDayTR;
	t.allDayBounds = allDayBounds;
	t.getHoverListener = function() { return hoverListener };
	t.colContentLeft = colContentLeft;
	t.colContentRight = colContentRight;
	t.getDaySegmentContainer = function() { return daySegmentContainer };
	t.getSlotSegmentContainer = function() { return slotSegmentContainer };
	t.getMinMinute = function() { return minMinute };
	t.getMaxMinute = function() { return maxMinute };
	t.getBodyContent = function() { return bodyContent };
	t.getRowCnt = function() { return 1 };
	t.getColCnt = function() { return colCnt };
	t.getColWidth = function() { return colWidth };
	t.getSlotHeight = function() { return slotHeight };
	t.defaultSelectionEnd = defaultSelectionEnd;
	t.renderDayOverlay = renderDayOverlay;
	t.renderSelection = renderSelection;
	t.clearSelection = clearSelection;
	t.dragStart = dragStart;
	t.dragStop = dragStop;
	
	
	// imports
	View.call(t, element, calendar, viewName);
	OverlayManager.call(t);
	SelectionManager.call(t);
	AgendaEventRenderer.call(t);
	var opt = t.opt;
	var trigger = t.trigger;
	var clearEvents = t.clearEvents;
	var renderOverlay = t.renderOverlay;
	var clearOverlays = t.clearOverlays;
	var reportSelection = t.reportSelection;
	var unselect = t.unselect;
	var daySelectionMousedown = t.daySelectionMousedown;
	var slotSegHtml = t.slotSegHtml;
	var formatDate = calendar.formatDate;
	
	
	// locals
	var head, body, bodyContent, bodyTable, bg;
	var colCnt;
	var slotCnt=0; // spanning all the way across
	var axisWidth, colWidth, slotHeight;
	var viewWidth, viewHeight;
	var savedScrollTop;
	var tm, firstDay;
	var nwe;            // no weekends (int)
	var rtl, dis, dit;  // day index sign / translate
	var minMinute, maxMinute;
	var coordinateGrid;
	var hoverListener;
	var colContentPositions;
	var slotTopCache = {};
	var selectionHelper;
	var daySegmentContainer;
	var slotSegmentContainer;
	

	
	/* Rendering
	-----------------------------------------------------------------------------*/
	
	
	disableTextSelection(element.addClass('fc-agenda'));
	
	
	function renderAgenda(c) {
	
		colCnt = c;
		
		// update option-derived variables
		tm = opt('theme') ? 'ui' : 'fc';
		nwe = opt('weekends') ? 0 : 1;
		firstDay = opt('firstDay');
		if (rtl = opt('isRTL')) {
			dis = -1;
			dit = colCnt - 1;
		}else{
			dis = 1;
			dit = 0;
		}
		minMinute = parseTime(opt('minTime'));
		maxMinute = parseTime(opt('maxTime'));
		
		var d0 = rtl ? addDays(cloneDate(t.visEnd), -1) : cloneDate(t.visStart),
			d = cloneDate(d0),
			today = clearTime(new Date()),
			colFormat = opt('columnFormat');
		
		if (!head) { // first time rendering, build from scratch
		
			var i,
				minutes,
				slotNormal = opt('slotMinutes') % 15 == 0, //...
			
			// head
			s = "<div class='fc-agenda-head' style='position:relative;z-index:4'>" +
				"<table style='width:100%'>" +
				"<tr class='fc-first" + (opt('allDaySlot') ? '' : ' fc-last') + "'>" +
				"<th class='fc-leftmost " +
					tm + "-state-default'>&nbsp;</th>";
			for (i=0; i<colCnt; i++) {
				s += "<th class='fc-" +
					dayIDs[d.getDay()] + ' ' + // needs to be first
					tm + '-state-default' +
					"'>" + formatDate(d, colFormat) + "</th>";
				addDays(d, dis);
				if (nwe) {
					skipWeekend(d, dis);
				}
			}
			s += "<th class='" + tm + "-state-default'>&nbsp;</th></tr>";
			if (opt('allDaySlot')) {
				s += "<tr class='fc-all-day'>" +
						"<th class='fc-axis fc-leftmost " + tm + "-state-default'>" + opt('allDayText') + "</th>" +
						"<td colspan='" + colCnt + "' class='" + tm + "-state-default'>" +
							"<div class='fc-day-content'><div style='position:relative'>&nbsp;</div></div></td>" +
						"<th class='" + tm + "-state-default'>&nbsp;</th>" +
					"</tr><tr class='fc-divider fc-last'><th colspan='" + (colCnt+2) + "' class='" +
						tm + "-state-default fc-leftmost'><div/></th></tr>";
			}
			s+= "</table></div>";
			head = $(s).appendTo(element);
			dayBind(head.find('td'));
			
			// all-day event container
			daySegmentContainer = $("<div style='position:absolute;z-index:8;top:0;left:0'/>").appendTo(head);
			
			// body
			d = zeroDate();
			var maxd = addMinutes(cloneDate(d), maxMinute);
			addMinutes(d, minMinute);
			s = "<table>";
			for (i=0; d < maxd; i++) {
				minutes = d.getMinutes();
				s += "<tr class='" +
					(!i ? 'fc-first' : (!minutes ? '' : 'fc-minor')) +
					"'><th class='fc-axis fc-leftmost " + tm + "-state-default'>" +
					((!slotNormal || !minutes) ? formatDate(d, opt('axisFormat')) : '&nbsp;') + 
					"</th><td class='fc-slot" + i + ' ' +
						tm + "-state-default'><div style='position:relative'>&nbsp;</div></td></tr>";
				addMinutes(d, opt('slotMinutes'));
				slotCnt++;
			}
			s += "</table>";
			body = $("<div class='fc-agenda-body' style='position:relative;z-index:2;overflow:auto'/>")
				.append(bodyContent = $("<div style='position:relative;overflow:hidden'>")
					.append(bodyTable = $(s)))
				.appendTo(element);
			slotBind(body.find('td'));
			
			// slot event container
			slotSegmentContainer = $("<div style='position:absolute;z-index:8;top:0;left:0'/>").appendTo(bodyContent);
			
			// background stripes
			d = cloneDate(d0);
			s = "<div class='fc-agenda-bg' style='position:absolute;z-index:1'>" +
				"<table style='width:100%;height:100%'><tr class='fc-first'>";
			for (i=0; i<colCnt; i++) {
				s += "<td class='fc-" +
					dayIDs[d.getDay()] + ' ' + // needs to be first
					tm + '-state-default ' +
					(!i ? 'fc-leftmost ' : '') +
					(+d == +today ? tm + '-state-highlight fc-today' : 'fc-not-today') +
					"'><div class='fc-day-content'><div>&nbsp;</div></div></td>";
				addDays(d, dis);
				if (nwe) {
					skipWeekend(d, dis);
				}
			}
			s += "</tr></table></div>";
			bg = $(s).appendTo(element);
			
		}else{ // skeleton already built, just modify it
		
			clearEvents();
			
			// redo column header text and class
			head.find('tr:first th').slice(1, -1).each(function(i, th) {
				$(th).text(formatDate(d, colFormat));
				th.className = th.className.replace(/^fc-\w+(?= )/, 'fc-' + dayIDs[d.getDay()]);
				addDays(d, dis);
				if (nwe) {
					skipWeekend(d, dis);
				}
			});
			
			// change classes of background stripes
			d = cloneDate(d0);
			bg.find('td').each(function(i, td) {
				td.className = td.className.replace(/^fc-\w+(?= )/, 'fc-' + dayIDs[d.getDay()]);
				if (+d == +today) {
					$(td)
						.removeClass('fc-not-today')
						.addClass('fc-today')
						.addClass(tm + '-state-highlight');
				}else{
					$(td)
						.addClass('fc-not-today')
						.removeClass('fc-today')
						.removeClass(tm + '-state-highlight');
				}
				addDays(d, dis);
				if (nwe) {
					skipWeekend(d, dis);
				}
			});
		
		}
		
	}
	
	
	
	function setHeight(height, dateChanged) {
	
		if (height === undefined) {
			height = viewHeight;
		}
		
		viewHeight = height;
		slotTopCache = {};
		
		body.height(height - head.height());
		
		slotHeight = body.find('tr:first div').height() + 1;
		
		bg.css({
			top: head.find('tr').height(),
			height: height
		});
		
		if (dateChanged) {
			resetScroll();
		}
	}
	
	
	
	function setWidth(width) {
		viewWidth = width;
		colContentPositions.clear();
		
		body.width(width);
		bodyTable.width('');
		
		var topTDs = head.find('tr:first th'),
			stripeTDs = bg.find('td'),
			clientWidth = body[0].clientWidth;
			
		bodyTable.width(clientWidth);
		
		// time-axis width
		axisWidth = 0;
		setOuterWidth(
			head.find('tr:lt(2) th:first').add(body.find('tr:first th'))
				.width('')
				.each(function() {
					axisWidth = Math.max(axisWidth, $(this).outerWidth());
				}),
			axisWidth
		);
		axisWidth = axisWidth;
		
		// column width
		colWidth = Math.floor((clientWidth - axisWidth) / colCnt);
		setOuterWidth(stripeTDs.slice(0, -1), colWidth);
		setOuterWidth(topTDs.slice(1, -2), colWidth);
		setOuterWidth(topTDs.slice(-2, -1), clientWidth - axisWidth - colWidth*(colCnt-1));
		
		bg.css({
			left: axisWidth,
			width: clientWidth - axisWidth
		});
	}
	
	
	function resetScroll() {
		var d0 = zeroDate(),
			scrollDate = cloneDate(d0);
		scrollDate.setHours(opt('firstHour'));
		var top = timePosition(d0, scrollDate) + 1, // +1 for the border
			scroll = function() {
				body.scrollTop(top);
			};
		scroll();
		setTimeout(scroll, 0); // overrides any previous scroll state made by the browser
	}
	
	
	function beforeHide() {
		savedScrollTop = body.scrollTop();
	}
	
	
	function afterShow() {
		body.scrollTop(savedScrollTop);
	}
	
	
	
	/* Slot/Day clicking and binding
	-----------------------------------------------------------------------*/
	

	function dayBind(tds) {
		tds.click(slotClick)
			.mousedown(daySelectionMousedown);
	}


	function slotBind(tds) {
		tds.click(slotClick)
			.mousedown(slotSelectionMousedown);
	}
	
	
	function slotClick(ev) {
		if (!opt('selectable')) { // SelectionManager will worry about dayClick
			var col = Math.min(colCnt-1, Math.floor((ev.pageX - bg.offset().left) / colWidth)),
				date = addDays(cloneDate(t.visStart), col*dis+dit),
				rowMatch = this.className.match(/fc-slot(\d+)/);
			if (rowMatch) {
				var mins = parseInt(rowMatch[1]) * opt('slotMinutes'),
					hours = Math.floor(mins/60);
				date.setHours(hours);
				date.setMinutes(mins%60 + minMinute);
				trigger('dayClick', this, date, false, ev);
			}else{
				trigger('dayClick', this, date, true, ev);
			}
		}
	}
	
	
	
	/* Semi-transparent Overlay Helpers
	-----------------------------------------------------*/
	

	function renderDayOverlay(startDate, endDate, refreshCoordinateGrid) { // endDate is exclusive
		if (refreshCoordinateGrid) {
			coordinateGrid.build();
		}
		var visStart = cloneDate(t.visStart);
		var startCol, endCol;
		if (rtl) {
			startCol = dayDiff(endDate, visStart)*dis+dit+1;
			endCol = dayDiff(startDate, visStart)*dis+dit+1;
		}else{
			startCol = dayDiff(startDate, visStart);
			endCol = dayDiff(endDate, visStart);
		}
		startCol = Math.max(0, startCol);
		endCol = Math.min(colCnt, endCol);
		if (startCol < endCol) {
			dayBind(
				renderCellOverlay(0, startCol, 0, endCol-1)
			);
		}
	}
	
	
	function renderCellOverlay(col0, row0, col1, row1) {
		var rect = coordinateGrid.rect(col0, row0, col1, row1, head);
		return renderOverlay(rect, head);
	}
	

	function renderSlotOverlay(overlayStart, overlayEnd) {
		var dayStart = cloneDate(t.visStart);
		var dayEnd = addDays(cloneDate(dayStart), 1);
		for (var i=0; i<colCnt; i++) {
			var stretchStart = new Date(Math.max(dayStart, overlayStart));
			var stretchEnd = new Date(Math.min(dayEnd, overlayEnd));
			if (stretchStart < stretchEnd) {
				var col = i*dis+dit;
				var rect = coordinateGrid.rect(0, col, 0, col, bodyContent); // only use it for horizontal coords
				var top = timePosition(dayStart, stretchStart);
				var bottom = timePosition(dayStart, stretchEnd);
				rect.top = top;
				rect.height = bottom - top;
				slotBind(
					renderOverlay(rect, bodyContent)
				);
			}
			addDays(dayStart, 1);
			addDays(dayEnd, 1);
		}
	}
	
	
	
	/* Coordinate Utilities
	-----------------------------------------------------------------------------*/
	
	
	coordinateGrid = new CoordinateGrid(function(rows, cols) {
		var e, n, p;
		bg.find('td').each(function(i, _e) {
			e = $(_e);
			n = e.offset().left;
			if (i) {
				p[1] = n;
			}
			p = [n];
			cols[i] = p;
		});
		p[1] = n + e.outerWidth();
		if (opt('allDaySlot')) {
			e = head.find('td');
			n = e.offset().top;
			rows[0] = [n, n+e.outerHeight()];
		}
		var bodyContentTop = bodyContent.offset().top;
		var bodyTop = body.offset().top;
		var bodyBottom = bodyTop + body.outerHeight();
		function constrain(n) {
			return Math.max(bodyTop, Math.min(bodyBottom, n));
		}
		for (var i=0; i<slotCnt; i++) {
			rows.push([
				constrain(bodyContentTop + slotHeight*i),
				constrain(bodyContentTop + slotHeight*(i+1))
			]);
		}
	});
	
	
	hoverListener = new HoverListener(coordinateGrid);
	
	
	colContentPositions = new HorizontalPositionCache(function(col) {
		return bg.find('td:eq(' + col + ') div div');
	});
	
	
	function colContentLeft(col) {
		return axisWidth + colContentPositions.left(col);
	}
	
	
	function colContentRight(col) {
		return axisWidth + colContentPositions.right(col);
	}
	
	
	function dayOfWeekCol(dayOfWeek) {
		return ((dayOfWeek - Math.max(firstDay,nwe)+colCnt) % colCnt)*dis+dit;
	}
	
	
	// get the Y coordinate of the given time on the given day (both Date objects)
	function timePosition(day, time) { // both date objects. day holds 00:00 of current day
		day = cloneDate(day, true);
		if (time < addMinutes(cloneDate(day), minMinute)) {
			return 0;
		}
		if (time >= addMinutes(cloneDate(day), maxMinute)) {
			return bodyContent.height();
		}
		var slotMinutes = opt('slotMinutes'),
			minutes = time.getHours()*60 + time.getMinutes() - minMinute,
			slotI = Math.floor(minutes / slotMinutes),
			slotTop = slotTopCache[slotI];
		if (slotTop === undefined) {
			slotTop = slotTopCache[slotI] = body.find('tr:eq(' + slotI + ') td div')[0].offsetTop;
		}
		return Math.max(0, Math.round(
			slotTop - 1 + slotHeight * ((minutes % slotMinutes) / slotMinutes)
		));
	}
	
	
	function cellDate(cell) {
		var d = addDays(cloneDate(t.visStart), cell.col*dis+dit);
		var slotIndex = cell.row;
		if (opt('allDaySlot')) {
			slotIndex--;
		}
		if (slotIndex >= 0) {
			addMinutes(d, minMinute + slotIndex*opt('slotMinutes'));
		}
		return d;
	}
	
	
	function cellIsAllDay(cell) {
		return opt('allDaySlot') && !cell.row;
	}
	
	
	function allDayBounds() {
		return {
			left: axisWidth,
			right: viewWidth
		}
	}
	
	
	function allDayTR(index) {
		return head.find('tr.fc-all-day');
	}
	
	
	function defaultEventEnd(event) {
		var start = cloneDate(event.start);
		if (event.allDay) {
			return start;
		}
		return addMinutes(start, opt('defaultEventMinutes'));
	}
	
	
	
	/* Selection
	---------------------------------------------------------------------------------*/
	
	
	function defaultSelectionEnd(startDate, allDay) {
		if (allDay) {
			return cloneDate(startDate);
		}
		return addMinutes(cloneDate(startDate), opt('slotMinutes'));
	}
	
	
	function renderSelection(startDate, endDate, allDay) {
		if (allDay) {
			if (opt('allDaySlot')) {
				renderDayOverlay(startDate, addDays(cloneDate(endDate), 1), true);
			}
		}else{
			renderSlotSelection(startDate, endDate);
		}
	}
	
	
	function renderSlotSelection(startDate, endDate) {
		var helperOption = opt('selectHelper');
		coordinateGrid.build();
		if (helperOption) {
			var col = dayDiff(startDate, t.visStart) * dis + dit;
			if (col >= 0 && col < colCnt) { // only works when times are on same day
				var rect = coordinateGrid.rect(0, col, 0, col, bodyContent); // only for horizontal coords
				var top = timePosition(startDate, startDate);
				var bottom = timePosition(startDate, endDate);
				if (bottom > top) { // protect against selections that are entirely before or after visible range
					rect.top = top;
					rect.height = bottom - top;
					rect.left += 2;
					rect.width -= 5;
					if ($.isFunction(helperOption)) {
						var helperRes = helperOption(startDate, endDate);
						if (helperRes) {
							rect.position = 'absolute';
							rect.zIndex = 8;
							selectionHelper = $(helperRes)
								.css(rect)
								.appendTo(bodyContent);
						}
					}else{
						selectionHelper = $(slotSegHtml(
							{
								title: '',
								start: startDate,
								end: endDate,
								className: [],
								editable: false
							},
							rect,
							'fc-event fc-event-vert fc-corner-top fc-corner-bottom '
						));
						if ($.browser.msie) {
							selectionHelper.find('span.fc-event-bg').hide(); // nested opacities mess up in IE, just hide
						}
						selectionHelper.css('opacity', opt('dragOpacity'));
					}
					if (selectionHelper) {
						slotBind(selectionHelper);
						bodyContent.append(selectionHelper);
						setOuterWidth(selectionHelper, rect.width, true); // needs to be after appended
						setOuterHeight(selectionHelper, rect.height, true);
					}
				}
			}
		}else{
			renderSlotOverlay(startDate, endDate);
		}
	}
	
	
	function clearSelection() {
		clearOverlays();
		if (selectionHelper) {
			selectionHelper.remove();
			selectionHelper = null;
		}
	}
	
	
	function slotSelectionMousedown(ev) {
		if (opt('selectable')) {
			unselect(ev);
			var _mousedownElement = this;
			var dates;
			hoverListener.start(function(cell, origCell) {
				clearSelection();
				if (cell && cell.col == origCell.col && !cellIsAllDay(cell)) {
					var d1 = cellDate(origCell);
					var d2 = cellDate(cell);
					dates = [
						d1,
						addMinutes(cloneDate(d1), opt('slotMinutes')),
						d2,
						addMinutes(cloneDate(d2), opt('slotMinutes'))
					].sort(cmp);
					renderSlotSelection(dates[0], dates[3]);
				}else{
					dates = null;
				}
			}, ev);
			$(document).one('mouseup', function(ev) {
				hoverListener.stop();
				if (dates) {
					if (+dates[0] == +dates[1]) {
						trigger('dayClick', _mousedownElement, dates[0], false, ev);
						// BUG: _mousedownElement will sometimes be the overlay
					}
					reportSelection(dates[0], dates[3], false, ev);
				}
			});
		}
	}
	
	
	
	/* External Dragging
	--------------------------------------------------------------------------------*/
	
	
	function dragStart(_dragElement, ev, ui) {
		hoverListener.start(function(cell) {
			clearOverlays();
			if (cell) {
				if (cellIsAllDay(cell)) {
					renderCellOverlay(cell.row, cell.col, cell.row, cell.col);
				}else{
					var d1 = cellDate(cell);
					var d2 = addMinutes(cloneDate(d1), opt('defaultEventMinutes'));
					renderSlotOverlay(d1, d2);
				}
			}
		}, ev);
	}
	
	
	function dragStop(_dragElement, ev, ui) {
		var cell = hoverListener.stop();
		clearOverlays();
		if (cell) {
			trigger('drop', _dragElement, cellDate(cell), cellIsAllDay(cell), ev, ui);
		}
	}


}