(function($) {
    $.fn.jqueryCal = function(options) {
        var defaults = {
            xmlPath: '',
            noEvents: 'no events.',
            noEventsToday: 'no events today',
            monthText: '',
            getXMLmonthly: true,
            toolTipBigPrev: "letztes Jahr",
            toolTipSmallPrev: "letzter Monat",
            toolTipSmallNext: "nächstes Jahr",
            toolTipBigNext: "nächster Monat"
        };
        var options = $.extend(defaults, options);
        return this.each(function() {
            // global vars
            var divID = $(this).attr("id");
            var dateList = new Array();
            var weekClasses = new Array("MA", "TI", "ON", "TO", "FR", "LO", "SO");
			var weekLabels = new Array("MA", "TI", "ON", "TO", "FR", "LØ", "SØ");
            var weekday = new Array("Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag")
            var currentDate = new Date();
            currentDate.setHours(0);
            currentDate.setMinutes(0);
            currentDate.setSeconds(0);
            currentDate.setMilliseconds(0);
            var selectedDate = new Date();
            selectedDate.setDate(1);
            selectedDate.setHours(0);
            selectedDate.setMinutes(0);
            selectedDate.setSeconds(0);
            selectedDate.setMilliseconds(0);
            var selectedWeek = new Date();
            selectedWeek.setHours(0);
            selectedWeek.setMinutes(0);
            selectedWeek.setSeconds(0);
            selectedWeek.setMilliseconds(0);
            var tempDate = new Date();
            tempDate.setHours(0);
            tempDate.setMinutes(0);
            tempDate.setSeconds(0);
            tempDate.setMilliseconds(0);
            var clickedEventText = "";
            var todayText = "";
            var xmlPath = xmlPath;
            var tmpString = "";
            var tmpStringParts = new Array();
            var datesInWeek = new Array();
            var htmlString = "";

            writeHTML();

            // parse XML
            function parseXML() {
                try {
                    xmlPath = options.xmlPath + location.pathname + "?view=event";
                    $.ajax({
                        type: "GET",
                        url: xmlPath,
                        dataType: "xml",
                        success: function(xml) {
                            $(xml).find('calendardoc').each(function(i) {
                                dateList[i] = new Object();
                                dateList[i]["dateStart"] = Date.parse($(this).children("dateStart").text());
                                dateList[i]["dateEnd"] = Date.parse($(this).children("dateEnd").text());
                                dateList[i]["title"] = $(this).find('title').text();
                                dateList[i]["text"] = $(this).find('text').text();
                                dateList[i]["link"] = $(this).find('link').text();
                                newwindow = $(this).find('newwindow').text();
                                 if(newwindow == "true")
                                 {
									 openInNewWindow = "_blank";
                                 }
                                 else
                                 {
									 openInNewWindow = "_self";
                                 }
                         				
							 
                            })
                            fillHTML();
                        }
                    })
                }
                catch (err) {
                    fillHTML();
                }
            }


            // write HTML
            function writeHTML() {
                if ((divID).match("Month")) {
                    htmlString += "<div class='head'><a class='bigPrev' title='" + options.toolTipBigPrev + "' href='#'></a><a class='smallPrev'  title='" + options.toolTipSmallPrev + "' href='#'></a><span class='text'></span><a class='smallNext' title='" + options.toolTipSmallNext + "' href='#'></a><a class='bigNext' title='" + options.toolTipBigNext + "' href='#'></a></div><div class='body'><div class='calendarWeekContainer'>";
                    htmlString += "<span class='kw'></span>";
                    for (var i = 0; i <= 5; i++) {
                        htmlString += "<span class='calendarWeek'></span>";
                    }
                    htmlString += "</div><div class='weekDaysContainer'>";
                    for (var i = 0; i <= 6; i++) {
                        htmlString += "<span class='weekDays " + weekClasses[i] + "'></span>";
                    }
                    htmlString += "</div><div class='weekDatesContainer'>";
                    for (var i = 0; i <= 41; i++) {
                        var j = 0;
                        j++;
                        htmlString += "<span class='weekDates " + weekClasses[j] + "'></span>";
                        if (j = 6)
                            j = 0;
                    }
                    htmlString += "</div><div class='contentBegin'></div><div class='content'></div><div class='footer'></div></div>";
                    $("#" + divID).html(htmlString);
                    // month
                    $("#" + divID + " .head .bigPrev").click(function(event) {
						event.preventDefault();
                        selectedDate.setYear(selectedDate.getFullYear() - 1);
                        tempDate.setDate(1);
                        tempDate.setYear(tempDate.getFullYear() - 1);
                        parseXML();
                    });
                    $("#" + divID + " .head .smallPrev").click(function(event) {
						event.preventDefault();
						selectedDate.setDate(1);
                        selectedDate.setMonth(selectedDate.getMonth() - 1);
                        tempDate.setDate(1);
                        tempDate.setMonth(tempDate.getMonth() - 1);
                        //parseXML();
                        fillHTML();
                    });
                    $("#" + divID + " .head .smallNext").click(function(event) {
						event.preventDefault();
						selectedDate.setDate(1);
                        selectedDate.setMonth(selectedDate.getMonth() + 1);
                        tempDate.setDate(1);
                        tempDate.setMonth(tempDate.getMonth() + 1);
                        //parseXML();
                        fillHTML();
                    });
                    $("#" + divID + " .head .bigNext").click(function(event) {
						event.preventDefault();
                        selectedDate.setYear(selectedDate.getFullYear() + 1);
                        tempDate.setDate(1);
                        tempDate.setYear(tempDate.getFullYear() + 1);
                        parseXML();
                    });
                }
                else
                    if ((divID).match("Week")) {
                    htmlString += "<div class='head'><a class='bigPrev' title='" + options.toolTipBigPrev + "' href='#'></a><a class='smallPrev' title='" + options.toolTipSmallPrev + "' href='#'></a><span class='text'></span><a class='smallNext'  title='" + options.toolTipSmallNext + "'  href='#'></a><a class='bigNext' title='" + options.toolTipBigNext + "'  href='#'></a></div><div class='body'>";
                    for (var i = 0; i <= 6; i++)
                        htmlString += "<a class='date'><span class='day " + weekClasses[i] + "'></span><span class='weekday'> " + weekClasses[i] + "</span></a>";
                    htmlString += "</div><div class='content'></div><div class='footer'></div>";
                    $("#" + divID).html(htmlString);
                    // week
                    $("#" + divID + " .head .bigPrev").click(function() {
                        selectedWeek.setMonth(selectedWeek.getMonth() - 1);
                        parseXML();
                    });
                    $("#" + divID + " .head .smallPrev").click(function() {
                        selectedWeek.setDate(selectedWeek.getDate() - 7);
                        parseXML();
                    });
                    $("#" + divID + " .head .smallNext").click(function() {
                        selectedWeek.setDate(selectedWeek.getDate() + 7);
                        parseXML();
                    });
                    $("#" + divID + " .head .bigNext").click(function() {
                        selectedWeek.setMonth(selectedWeek.getMonth() + 1);
                        parseXML();
                    });
                }
                fillHTML();
                parseXML();
            }


            // fill HTML
            function fillHTML() {
                if ((divID).match("Month")) {
                    // clean HTML
                    cleanHTMLMonth();
                    var firstOfSelectedMonth = selectedDate;
                    firstOfSelectedMonth.setDate(1);
                    currentDate = new Date();
                    $("#" + divID + " .head .text").html(options.monthText + " " + selectedDate.getMonthName().substr(0, 1).toUpperCase() + selectedDate.getMonthName().substr(1) + " " + selectedDate.getFullYear());
                    for (i = 0; i <= weekClasses.length; i++) {
                        $("#" + divID + " .body .weekDaysContainer .weekDays." + weekClasses[i]).html(weekLabels[i]);
                    }
                    var startWrite = 0;
                    var j = 1;
                    if (selectedDate.getDay() == 0) {
                        startWrite = 6;
                    }
                    else {
                        startWrite = selectedDate.getDay() - 1;
                    }
                    // write calendarweeks
                    var tempMonth = selectedDate.getMonth();
                    var tempYear = selectedDate.getFullYear();
                    $("#" + divID + " .body .calendarWeek").each(function(i) {
                        $(this).text((getCalendarWeek(selectedDate.getFullYear(), selectedDate.getMonth() + 1, selectedDate.getDate())));
                        selectedDate.setDate(selectedDate.getDate() + 7);
                    });
                    selectedDate.setMonth(tempMonth);
                    selectedDate.setFullYear(tempYear);
                    selectedDate.setDate(1);
                    $("#" + divID + " .body .weekDatesContainer .weekDates").each(function(i) {
                        if (startWrite <= i && j <= (daysInMonth(firstOfSelectedMonth.getMonth() + 1, firstOfSelectedMonth.getFullYear() + 1))) {
                            $(this).text(j);
                            $(this).addClass("pointer");
                            $(this).hover(function() {
                                $(this).addClass("hover");
                            }, function() {
                                $(this).removeClass("hover");
                            });
                            j++;
                            // mark current day
                            if ((selectedDate.getMonth() == currentDate.getMonth()) && (selectedDate.getFullYear() == currentDate.getFullYear()) && ($(this).text() == currentDate.getDate()))
                                $(this).addClass("currentDate");
                        }
                    });
                    // mark events
                    for (var i = 0; i <= dateList.length - 1; i++) {
                        $("#" + divID + " .body .weekDatesContainer .weekDates").each(function() {
                            if ($(this).text() != "") {
                                tempDate.setDate($(this).text());
                                if (tempDate.getTime() >= dateList[i]["dateStart"].getTime() && tempDate.getTime() <= dateList[i]["dateEnd"].getTime()) {
                                    $(this).addClass("event");
                                }
                            }
                        })
                    }
                    // add events
                    addEventInfo();
                }
                else
                    if ((divID).match("Week")) {
                    // clean HTML
                    cleanHTMLWeek();
                    // define weekstart
                    selectedWeek.setDate(selectedWeek.getDate() - selectedWeek.getDay());
                    // fill html
                    $("#" + divID + " .head .text").html(options.monthText + " " + selectedWeek.getMonthName() + " " + selectedWeek.getFullYear());
                    $("#" + divID + " .body .date .day").each(function(i) {
                        selectedWeek.setDate(selectedWeek.getDate() + 1);
                        $(this).text(selectedWeek.getDate());
                        // mark current day
                        if ((selectedWeek.getMonth() == currentDate.getMonth()) && (selectedWeek.getFullYear() == currentDate.getFullYear()) && ($(this).text() == currentDate.getDate()))
                            $(this).parent().addClass("currentDate");
                    })
                    selectedWeek.setDate(selectedWeek.getDate() - 6);
                    // mark events
                    tempDate.setDate(selectedWeek.getDate());
                    tempDate.setMonth(selectedWeek.getMonth());
                    tempDate.setFullYear(selectedWeek.getFullYear());
                    $("#" + divID + " .body .date .day").each(function(j) {
                        for (var i = 0; i <= dateList.length - 1; i++) {
                            if (tempDate.getTime() >= dateList[i]["dateStart"].getTime() && tempDate.getTime() <= dateList[i]["dateEnd"].getTime()) {
                                $(this).parent().addClass("event");
                            }
                        }
                        tempDate.setDate(tempDate.getDate() + 1);
                    })
                    addEventInfo();
                }
            }


            // clean HTML month
            function cleanHTMLMonth() {
                $("#" + divID + " .body .weekDatesContainer .weekDates").each(function() {
                    $(this).text("");
                    $(this).removeClass("event");
                    $(this).removeClass("currentDate");
                    $(this).removeClass("pointer");
                    $(this).unbind();
                    $(this).click(function() {
                    });
                })
                $("#" + divID + " .head .text").text = "";
            }


            // clean HTML week
            function cleanHTMLWeek() {
                $("#" + divID + " .body .date").each(function(j) {
                    $(this).removeClass("event");
                    $(this).removeClass("currentDate");
                    $(this).removeClass("pointer");
                    $(this).unbind();
                    $(this).click(function() {
                    });
                })
                $("#" + divID + " .head .text").text = "";
            }


            // get days of month
            function daysInMonth(month, year) {
                var m = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
                if (month != 2)
                    return m[month - 1];
                if (year % 4 != 0)
                    return m[1];
                if (year % 100 == 0 && year % 400 != 0)
                    return m[1];
                return m[1] + 1;
            }


            // week of year & week of month
            function getWeekOfMonth(date) {
                var todayDayOfMonth = date.getDate() - 1;
                var first = new Date(date.getFullYear() + '/' + (date.getMonth() + 1) + '/01');
                var monthFirstDateDay = first.getDay();
                return Math.ceil((todayDayOfMonth + monthFirstDateDay) / 7);
            }


            // calculate CalendarWeek
            function getCalendarWeek(jahr, monat, tag) {
                var datum = new Date(jahr, monat - 1, tag);
                var jh = jahr + 1;
                var kalwo = getkaldiff(datum, jh);
                while (kalwo < 1) {
                    jh--;
                    kalwo = getkaldiff(datum, jh);
                }
                return kalwo;
            }
            function getkaldiff(datum, jahr) {
                var d4j = new Date(jahr, 0, 4);
                var wt4j = (d4j.getDay() + 6) % 7;
                var m1wjT = Math.floor(0.01 + d4j.getTime() / 864e5 - wt4j);
                var datumT = Math.floor(0.01 + datum.getTime() / 864e5);
                return Math.floor(1 + (datumT - m1wjT) / 7);
            }


            // add event info  
            function addEventInfo() {
                if ((divID).match("Month")) {
                    if ((currentDate.getMonth() == selectedDate.getMonth()) && (currentDate.getFullYear() == selectedDate.getFullYear())) {
                        todayText = "";
                        for (var i = 0; i <= dateList.length - 1; i++) {
                            if ((currentDate.toLocaleDateString() == dateList[i]["dateStart"].toLocaleDateString() || currentDate.getTime() >= dateList[i]["dateStart"].getTime()) && (currentDate.toLocaleDateString() == dateList[i]["dateEnd"].toLocaleDateString() || currentDate.getTime() <= dateList[i]["dateEnd"].getTime())) {
                                todayText = todayText.concat("<a href='" + dateList[i]["link"] + "' class='url'>" + dateList[i]["title"] + "</a><br />"); // <a href class='url'>" + dateList[i]["url"] + "</a>
                            }
                        }
                        if (todayText == "") {
                            todayText = todayText.concat(options.noEventsToday);
                        }
                        $("#" + divID + " .content").html(todayText);
                    }
                    // add day events
                    $("#" + divID + " .body .weekDatesContainer .pointer").each(function() {
                        $(this).hover(function() {
                            $(this).addClass("mouseOver");
                        }, function() {
                            $(this).removeClass("mouseOver");
                        });
                        $(this).click(function() {
                            $("#" + divID + " .body .weekDatesContainer .pointer").each(function() {
                                $(this).removeClass("currentDate");
                            })
                            $(this).addClass("currentDate");
                            clickedEventText = "";
                            selectedDate.setDate($(this).text());
                            for (var i = 0; i <= dateList.length - 1; i++) {
                                if ((selectedDate.toLocaleDateString() == dateList[i]["dateStart"].toLocaleDateString() || selectedDate.getTime() >= dateList[i]["dateStart"].getTime()) && (selectedDate.toLocaleDateString() == dateList[i]["dateEnd"].toLocaleDateString() || selectedDate.getTime() <= dateList[i]["dateEnd"].getTime())) {
                                    clickedEventText = clickedEventText.concat("<a href='" + dateList[i]["link"] + "' class='url' target='" + openInNewWindow + "'>" + dateList[i]["title"] + "</a><br />"); // <a href class='url'>" + dateList[i]["url"] + "</a>
                                }
                            }
                            if (clickedEventText == "")
                                clickedEventText = clickedEventText.concat(options.noEvents);
                            $("#" + divID + " .content").html(clickedEventText);
                        })
                    });
                }
                else {
                    if ((currentDate.getMonth() == selectedWeek.getMonth()) && (currentDate.getFullYear() == selectedWeek.getFullYear())) {
                        todayText = "";
                        for (var i = 0; i <= dateList.length - 1; i++) {
                            if ((currentDate.toLocaleDateString() == dateList[i]["dateStart"].toLocaleDateString() || currentDate.getTime() >= dateList[i]["dateStart"].getTime()) && (currentDate.toLocaleDateString() == dateList[i]["dateEnd"].toLocaleDateString() || currentDate.getTime() <= dateList[i]["dateEnd"].getTime())) {
                                todayText = todayText.concat("<b>" + dateList[i]["title"] + "</b><br />" + currentDate.toLocaleDateString() + "<br />" + dateList[i]["text"] + "<br />"); // <a href class='url'>" + dateList[i]["url"] + "</a>
                            }
                        }
                        if (todayText == "") {
                            todayText = "<b>" + todayText.concat(options.noEventsToday) + "</b>";
                        }
                        $("#" + divID + " .content").html(todayText);
                    }
                    // add day events
                    $("#" + divID + " .body .date .day").each(function() {
                        $(this).parent().hover(function() {
                            $(this).addClass("mouseOver");
                        }, function() {
                            $(this).removeClass("mouseOver");
                        });
                        $(this).parent().click(function() {
                            $("#" + divID + " .body .date").each(function() {
                                $(this).removeClass("currentDate");
                            })
                            $(this).addClass("currentDate");
                            clickedEventText = "";
                            selectedDate.setFullYear(selectedWeek.getFullYear());
                            selectedDate.setMonth(selectedWeek.getMonth());
                            var date;
                            if ($(this).text().length == 5)
                                date = $(this).text().substr(0, 2);
                            else
                                if ($(this).text().length == 4)
                                date = $(this).text().substr(0, 1);
                            selectedDate.setDate(date);
                            $("#" + divID + " .body .date .day").each(function() {
                                if ($(this).text() == daysInMonth(selectedDate.getMonth() + 1, daysInMonth(selectedDate.getFullYear()))) {
                                    if (date >= 1 && date <= 7) {
                                        selectedDate.setMonth(selectedDate.getMonth() + 1);
                                    }
                                }
                            })
                            for (var i = 0; i <= dateList.length - 1; i++) {
                                if ((selectedDate.toLocaleDateString() == dateList[i]["dateStart"].toLocaleDateString() || selectedDate.getTime() >= dateList[i]["dateStart"].getTime()) && (selectedDate.toLocaleDateString() == dateList[i]["dateEnd"].toLocaleDateString() || selectedDate.getTime() <= dateList[i]["dateEnd"].getTime())) {
                                    clickedEventText = clickedEventText.concat("<b>" + dateList[i]["title"] + "</b><br />" + selectedDate.toLocaleDateString() + "<br />" + dateList[i]["text"] + "<br />"); // <a href class='url'>" + dateList[i]["url"] + "</a>
                                }
                                else {
                                    if ((selectedDate.toLocaleDateString() == dateList[i]["dateStart"].toLocaleDateString() || selectedDate.getTime() >= dateList[i]["dateStart"].getTime()) && (selectedDate.toLocaleDateString() == dateList[i]["dateEnd"].toLocaleDateString() || selectedDate.getTime() <= dateList[i]["dateEnd"].getTime())) {
                                        clickedEventText = clickedEventText.concat("<b>" + dateList[i]["title"] + "</b><br />" + selectedDate.toLocaleDateString() + "<br />" + dateList[i]["text"] + "<br />"); // <a href class='url'>" + dateList[i]["url"] + "</a>
                                    }
                                }
                            }
                            if (clickedEventText == "")
                                clickedEventText = "<b>" + clickedEventText.concat(options.noEvents) + "</b>";
                            $("#" + divID + " .content").html(clickedEventText);
                        })
                    });
                }
            }
        });
    };
})(jQuery);