var dateFormat = function () {
	var	token = /d{1,4}|m{1,4}|yy(?:yy)?|([HhMsTt])\1?|[LloSZ]|"[^"]*"|'[^']*'/g,
		timezone = /\b(?:[PMCEA][SDP]T|(?:Pacific|Mountain|Central|Eastern|Atlantic) (?:Standard|Daylight|Prevailing) Time|(?:GMT|UTC)(?:[-+]\d{4})?)\b/g,
		timezoneClip = /[^-+\dA-Z]/g,
		pad = function (val, len) {
			val = String(val);
			len = len || 2;
			while (val.length < len) val = "0" + val;
			return val;
		};

	// Regexes and supporting functions are cached through closure
	return function (date, mask, utc) {
		var dF = dateFormat;

		// You can't provide utc if you skip other args (use the "UTC:" mask prefix)
		if (arguments.length == 1 && (typeof date == "string" || date instanceof String) && !/\d/.test(date)) {
			mask = date;
			date = undefined;
		}

		// Passing date through Date applies Date.parse, if necessary
		date = date ? new Date(date) : new Date();
		if (isNaN(date)) throw new SyntaxError("invalid date");

		mask = String(dF.masks[mask] || mask || dF.masks["default"]);

		// Allow setting the utc argument via the mask
		if (mask.slice(0, 4) == "UTC:") {
			mask = mask.slice(4);
			utc = true;
		}

		var	_ = utc ? "getUTC" : "get",
			d = date[_ + "Date"](),
			D = date[_ + "Day"](),
			m = date[_ + "Month"](),
			y = date[_ + "FullYear"](),
			H = date[_ + "Hours"](),
			M = date[_ + "Minutes"](),
			s = date[_ + "Seconds"](),
			L = date[_ + "Milliseconds"](),
			o = utc ? 0 : date.getTimezoneOffset(),
			flags = {
				d:    d,
				dd:   pad(d),
				ddd:  dF.i18n.dayNames[D],
				dddd: dF.i18n.dayNames[D + 7],
				m:    m + 1,
				mm:   pad(m + 1),
				mmm:  dF.i18n.monthNames[m],
				mmmm: dF.i18n.monthNames[m + 12],
				yy:   String(y).slice(2),
				yyyy: y,
				h:    H % 12 || 12,
				hh:   pad(H % 12 || 12),
				H:    H,
				HH:   pad(H),
				M:    M,
				MM:   pad(M),
				s:    s,
				ss:   pad(s),
				l:    pad(L, 3),
				L:    pad(L > 99 ? Math.round(L / 10) : L),
				t:    H < 12 ? "a"  : "p",
				tt:   H < 12 ? "am" : "pm",
				T:    H < 12 ? "A"  : "P",
				TT:   H < 12 ? "AM" : "PM",
				Z:    utc ? "UTC" : (String(date).match(timezone) || [""]).pop().replace(timezoneClip, ""),
				o:    (o > 0 ? "-" : "+") + pad(Math.floor(Math.abs(o) / 60) * 100 + Math.abs(o) % 60, 4),
				S:    ["th", "st", "nd", "rd"][d % 10 > 3 ? 0 : (d % 100 - d % 10 != 10) * d % 10]
			};

		return mask.replace(token, function ($0) {
			return $0 in flags ? flags[$0] : $0.slice(1, $0.length - 1);
		});
	};
}();

// Some common format strings
dateFormat.masks = {
	"default":      "ddd mmm dd yyyy HH:MM:ss",
	shortDate:      "m/d/yy",
	mediumDate:     "mmm d, yyyy",
	longDate:       "mmmm d, yyyy",
	fullDate:       "dddd, mmmm d, yyyy",
	shortTime:      "h:MM TT",
	mediumTime:     "h:MM:ss TT",
	longTime:       "h:MM:ss TT Z",
	isoDate:        "yyyy-mm-dd",
	isoTime:        "HH:MM:ss",
	isoDateTime:    "yyyy-mm-dd'T'HH:MM:ss",
	isoUtcDateTime: "UTC:yyyy-mm-dd'T'HH:MM:ss'Z'"
};

// Internationalization strings
dateFormat.i18n = {
	dayNames: [
		"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat",
		"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
	],
	monthNames: [
		"Januari", "Februari", "Maart", "April", "Mei", "Juni", "Juli", "Augustus", "September", "Oktober", "November", "December"
	]
};


Date.prototype.getWeek = function() 
{
	var onejan = new Date(this.getFullYear(),0,1);
	var weeknum = Math.ceil((((this - onejan) / 86400000) + onejan.getDay())/7);
	
	if(weeknum == 53 && (this.getDay() < 27))
	{
		weeknum = 1;
	}
	
	if(weeknum<10)
	{
		weeknum = "0" + weeknum;
	}
	
	return weeknum;
}

function CreateAgenda(month, daylinkbase)
{
	CreateAgenda.max = 4;
	if(daylinkbase) CreateAgenda.daylinkbase=daylinkbase
	selectedmonth = (month+1);
	
	
	var baseLink = CreateAgenda.daylinkbase || "<a href=\"../templates/dispatcher.asp?page_id=dagagenda&eventdate=[eventdate]\"><div class=\"dag_head\">[day]</div></a>";
	
	var date = new Date();
	var today = new Date();
	selectedyear = date.getFullYear();
	
	date.setDate(1);
	date.setYear(selectedyear);
	date.setMonth( selectedmonth);
	
	TruncateDate(date);
	
	var tempdate=new Date(date);
	
	while(date.getDay()!=1)
		date.setDate(date.getDate()-1);
	
	var firstdate=new Date(date);
	
	var lastdate=new Date();
	lastdate.setDate(1);
	TruncateDate(lastdate);
	
	lastdate.setYear(selectedyear);
	lastdate.setMonth(selectedmonth+1);
	lastdate.setDate(0);
	TruncateDate(lastdate);
	
	
	while(lastdate.getDay()!=0)
		lastdate.setDate(lastdate.getDate()+1);
		
	var htmloutput = [];
	htmloutput.push("<div class=\"maand\"><table width=\"100%\">");
	htmloutput.push("<tr class=\"titels\"><td></td><td>Maandag</td><td>Dinsdag</td><td>Woensdag</td><td>Donderdag</td><td>Vrijdag</td><td>Zaterdag</td><td>Zondag</td></tr>");
	
	CreateAgenda.firstdate=firstdate;
	CreateAgenda.lastdate=lastdate;
	FillAgenda();
	
	while(date <= lastdate)
	{
		var label=dateFormat(date, "yyyy-m-d");
		var recurringKey = "r_" + dateFormat(date, "mm-dd");
		var currentlink=baseLink.replace(/\[eventdate\]/g, dateFormat(date, "yyyy-mm-dd")).replace(/\[day\]/g, dateFormat(date, "dd"));
		var currentcontent=(FillAgenda.data[label] ? FillAgenda.data[label].join("") :"")
		var start =  FillAgenda.data[label] ? FillAgenda.data[label].length : 0;
		if(FillAgenda.data[recurringKey])
		{
		var j=0;
		for(var i=start;i<CreateAgenda.max;i++)
		{
			if(FillAgenda.data[recurringKey][j])
			{
			currentcontent += FillAgenda.data[recurringKey][j]
			}
			j++;
		}
		}
		if (!currentcontent)
		{
				currentlink=currentlink.replace(/\<a\ /i,"<a onclick=\"return false\" ");
		}
		
		if(date.getDay()==1)
		htmloutput.push( "<tr><td class=\"weeknummer\">"+(date.getWeek())+"</td>");
		htmloutput.push("<td>"
					+   "<table class=\"dag"+((date.getDate()==today.getDate() && date.getMonth()==today.getMonth())?"_huidig":((date.getMonth()==(selectedmonth>11 ? selectedmonth-12:selectedmonth)) ? "_inmaand":"")) +"\">"
					+       "<tr class=\"head\">"
					+			"<td>"
					+				currentlink
					+			"</td>"
					+       "</tr>"
					+        "<tr class=\"item\">"
					+            "<td>"
					+               "<div class=\"agendaitem "+label+"\">"
					+					currentcontent
					+               "</div>"
					+            "</td>"
					+        "</tr>"
					+    "</table>"
					+"</td>");
		
		if(date.getDay()==0)
			htmloutput.push( "</tr>");
		date.setDate(date.getDate()+1);
	}
	htmloutput.push( "</table></div>")
	date=tempdate;
	$("div#agendaoutput").html(htmloutput.join(""));
	
	
	/*if(selectedmonth>11)
		selectedmonth = 0;*/
		
		
	//date.setMonth(selectedmonth);
	$("div.agenda div.paging div.currentmonth").text(dateFormat(date, "mmm yyyy"));		
	
	
	var tempdate = new Date();
	//tempdate = tempdate.setDate(-1))
	//alert(selectedmonth +  " / " + tempdate.getMonth())
	if(selectedmonth > tempdate.getMonth())
	{
		$("div.agenda div.paging div.prev").css("display", "block");
		//click(function(){CreateAgenda(selectedmonth-2);FillAgenda();});
	}else{
		$("div.agenda div.paging div.prev").css("display", "none");
	}
	
	
}

$(document).ready(function()
{
	//agenda paging
	$("div.agenda div.paging div.prev").click(function(){CreateAgenda(selectedmonth-2);/*FillAgenda();*/});
	$("div.agenda div.paging div.next").click(function(){CreateAgenda(selectedmonth);/*FillAgenda();*/});

});
function TruncateDate(date)
{
	date.setHours(0);
	date.setMinutes(0);
	date.setSeconds(0);	
	date.setMilliseconds(0)		
}
function FillAgenda()
{
	var agdata={};
	FillAgenda.data=agdata;
	$("ul.agenda li").each(function(i){
		var html=$(this).html();
		
		var startdate = new Date();
		var enddate = new Date();

		var text = $(this).attr("class");
		var recurMatch = text.match(/recurring:{(\d{4})-(\d{2})-(\d{2})}/);
		if(recurMatch)
		{
			var recurringKeyIndex = "r_" + String(recurMatch[2]) + "-" + String(recurMatch[3]);
			agdata[recurringKeyIndex]=agdata[recurringKeyIndex] || [];
			agdata[recurringKeyIndex].push(html);
		}
		else if(text.length>16)
		{
			var patt1=new RegExp("(?:start:|end:)([0-9]{4}\-[0-9]{2}\-[0-9]{2})", "g");
			var data = text.match(patt1);
			
			var start = data[0].replace("start:", "");
			var end = data[1].replace("end:", "");
			
			var startvalues = start.split("-");
			var endvalues = end.split("-");
			
			startdate.setYear(startvalues[0]);
			startdate.setDate(1);
			startdate.setMonth(Number(startvalues[1])-1);
			startdate.setDate(Number(startvalues[2]));
			TruncateDate(startdate);
			
			enddate.setYear(endvalues[0]);
			enddate.setDate(1);
			enddate.setMonth(Number(endvalues[1])-1);
			enddate.setDate(Number(endvalues[2]));

			TruncateDate(enddate);	
			
		}
		else
			return;
		
		var currentdate = startdate.getFullYear() + "-" + (startdate.getMonth()+1) + "-" + startdate.getDate();
		
		if (enddate<CreateAgenda.firstdate || startdate>CreateAgenda.lastdate) return;
		if (startdate<CreateAgenda.firstdate) startdate=new Date(CreateAgenda.firstdate);
		if (enddate>CreateAgenda.lastdate) enddate=new Date(CreateAgenda.lastdate);
		//alert(startdate+":"+enddate);
		
		while(startdate<=enddate && !recurMatch)
		{
			
			currentdate = startdate.getFullYear() + "-" + (startdate.getMonth()+1) + "-" + startdate.getDate();
			//alert(currentdate);
			agdata[currentdate]=agdata[currentdate] || [];
			
			//alert(currentdate + "\r\n" + text)
			
			if(agdata[currentdate].length>=CreateAgenda.max)
			{
				if($(this).hasClass("wetenswaardigheid"))
				{
					agdata[currentdate][CreateAgenda.max-1]=html;
				}
			}else{
			agdata[currentdate].push(html);
			//			$("div.maand tr.item div."+currentdate).append(html);
			}
			startdate.setDate(startdate.getDate()+1);
			
		}
		
	});
	var keys=[];
	for (var key in agdata)
	{
		keys.push(key);
		//$("div.maand tr.item div."+key).html(agdata[key].join(""));
	}
	//alert(keys.join(","));
}