// DATE FORMAT OPTIONS:
//
// D    = 1 or 2-digit Day
// DD   = 2-digit Day
// M    = 1 or 2-digit Month
// MM   = 2-digit Month
// YY   = 2-digit Year
// YYYY = 4-digit Year
// month   = Month name in lowercase letters
// Month   = Month name in initial caps
// MONTH   = Month name in captital letters
// mon     = 3-letter month abbreviation in lowercase letters
// Mon     = 3-letter month abbreviation in initial caps
// MON     = 3-letter month abbreviation in uppercase letters
// weekday = name of week in lowercase letters
// Weekday = name of week in initial caps
// WEEKDAY = name of week in uppercase letters
// wkdy    = 3-letter weekday abbreviation in lowercase letters
// Wkdy    = 3-letter weekday abbreviation in initial caps
// WKDY    = 3-letter weekday abbreviation in uppercase letters
//
// Examples:
//
// calDateFormat = "mm/dd/yy";
// calDateFormat = "Weekday, Month dd, yyyy";
// calDateFormat = "wkdy, mon dd, yyyy";
// calDateFormat = "DD.MM.YY";     // FORMAT UNSUPPORTED BY JAVASCRIPT -- REQUIRES CUSTOM PARSING
//

calDateFormat    = "YY-MM-DD";


// CALENDAR COLORS
topBackground    = "white";         // BG COLOR OF THE TOP FRAME
bottomBackground = "white";         // BG COLOR OF THE BOTTOM FRAME
tableBGColor     = "black";         // BG COLOR OF THE BOTTOM FRAME'S TABLE
cellColor        = "white";     	// TABLE CELL BG COLOR OF THE DATE CELLS IN THE BOTTOM FRAME
headingCellColor = "white";         // TABLE CELL BG COLOR OF THE WEEKDAY ABBREVIATIONS
headingTextColor = "black";         // TEXT COLOR OF THE WEEKDAY ABBREVIATIONS
dateColor        = "blue";          // TEXT COLOR OF THE LISTED DATES (1-28+)
focusColor       = "#ff0000";       // TEXT COLOR OF THE SELECTED DATE (OR CURRENT DATE)
hoverColor       = "darkred";       // TEXT COLOR OF A LINK WHEN YOU HOVER OVER IT
fontStyle        = "12pt arial, helvetica";           // TEXT STYLE FOR DATES
headingFontStyle = "bold 12pt arial, helvetica";      // TEXT STYLE FOR WEEKDAY ABBREVIATIONS

// FORMATTING PREFERENCES
bottomBorder  = false;        // TRUE/FALSE (WHETHER TO DISPLAY BOTTOM CALENDAR BORDER)
tableBorder   = 0;            // SIZE OF CALENDAR TABLE BORDER (BOTTOM FRAME) 0=none



// END USER-EDITABLE SECTION -------------------------------------------------------


var	dateFormats = new Array("YYYY", "MMMM", "MMM", "GMT", "YY", "MM", "DD", "HH", "hh", "mm", "ss", "AM", "am", "M", "D", "H", "h", "m", "s", "WWWW", "WWW");
var fullMonths = new Array('January', 'February', 'March', 'April', 'May', 'June', 'July', 'August', 'September', 'October', 'November', 'December');
var shortMonths = new Array('Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');
var fullWeekdays = new Array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');
var shortWeekdays = new Array('Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat');

// DETERMINE BROWSER BRAND
var isNav = false;
var isIE  = false;

// ASSUME IT'S EITHER NETSCAPE OR MSIE
if (navigator.appName == "Netscape") {
    isNav = true;
}
else {
    isIE = true;
}

// GET CURRENTLY SELECTED LANGUAGE
selectedLanguage = navigator.language;

// PRE-BUILD PORTIONS OF THE CALENDAR WHEN THIS JS LIBRARY LOADS INTO THE BROWSER
buildCalParts();



// CALENDAR FUNCTIONS BEGIN HERE ---------------------------------------------------



// SET THE INITIAL VALUE OF THE GLOBAL DATE FIELD
function setDateField(dateField, dateFormat) {

		if (dateFormat != "") {
			calDateFormat = dateFormat;
		}
    // ASSIGN THE INCOMING FIELD OBJECT TO A GLOBAL VARIABLE
    calDateField = dateField;

    // GET THE VALUE OF THE INCOMING FIELD
    inDate = dateField.value;

    // SET calDate TO THE DATE IN THE INCOMING FIELD OR DEFAULT TO TODAY'S DATE
    setInitialDate();

    // THE CALENDAR FRAMESET DOCUMENTS ARE CREATED BY JAVASCRIPT FUNCTIONS
    calDocTop    = buildTopCalFrame();
    calDocBottom = buildBottomCalFrame();
}


// SET THE INITIAL CALENDAR DATE TO TODAY OR TO THE EXISTING VALUE IN dateField
function setInitialDate() {
  
		// initialize variables with current date
    var curDate     = new Date();
		var inDateYear  = curDate.getFullYear();
		var inDateMonth = curDate.getMonth();
		var inDateDay   = curDate.getDate();
		// preparing data for parsing
		var parseFormat  = calDateFormat;
		var formatLength = parseFormat.length;
		var parseDate    = inDate;
		var dateLength   = parseDate.length;
		var cutFormat; 
		var cutDate;
		while (formatLength > 0 && dateLength > 0) {
			cutFormat = 1; cutDate = 1;
			if (formatLength >= 4 && parseFormat.substring(0, 4) == "YYYY") {
				if(dateLength >= 4) {
					inDateYear = parseDate.substring(0,4);
					cutFormat = 4; cutDate = 4;
				} else {
					break;
				}
			} else if (formatLength >= 2 && parseFormat.substring(0, 2) == "YY") {
				if(dateLength >= 2) {
					inDateYear = parseDate.substring(0, 2);
					if (parseInt(inDateYear) > 70) {
						inDateYear = "19" + inDateYear;
					} else {
						inDateYear = "20" + inDateYear;
					}
					cutFormat = 2; cutDate = 2;
				} else {
					break;
				}
			} else if (formatLength >= 2 && parseFormat.substring(0, 2) == "MM") {
				if(dateLength >= 2) {
					inDateMonth = parseDate.substring(0, 2) - 1;
					cutFormat = 2; cutDate = 2;
				} else {
					break;
				}
			} else if (formatLength >= 2 && parseFormat.substring(0, 2) == "DD") {
				if(dateLength >= 2) {
					inDateDay = parseDate.substring(0, 2);
					cutFormat = 2; cutDate = 2;
				} else {
					break;
				}
			} else if (parseFormat.substring(0, 1) == "M") {
				if(dateLength >= 2 && !isNaN(parseDate.substring(0, 2))) {
					inDateMonth = parseDate.substring(0, 2) - 1;
					cutDate = 2;
				} else {
					inDateMonth = parseDate.substring(0, 1) - 1;
				}
			} else if (parseFormat.substring(0, 1) == "D") {
				if(dateLength >= 2 && !isNaN(parseDate.substring(0, 2))) {
					inDateDay = parseDate.substring(0, 2);
					cutDate = 2;
				} else {
					inDateDay = parseDate.substring(0, 1);
				}
			} 
			parseFormat = parseFormat.substring(cutFormat, formatLength);
			parseDate   = parseDate.substring(cutDate, dateLength);
			formatLength = parseFormat.length;
			dateLength   = parseDate.length;
		}
    calDate = new Date(inDateYear, inDateMonth, inDateDay);

    // if the incoming date is invalid, use the current date
    if (isNaN(calDate)) {
			calDate = new Date();
    }

    // KEEP TRACK OF THE CURRENT DAY VALUE
    calDay  = calDate.getDate();

    // SET DAY VALUE TO 1... TO AVOID JAVASCRIPT DATE CALCULATION ANOMALIES
    // (IF THE MONTH CHANGES TO FEB AND THE DAY IS 30, THE MONTH WOULD CHANGE TO MARCH
    //  AND THE DAY WOULD CHANGE TO 2.  SETTING THE DAY TO 1 WILL PREVENT THAT)
    calDate.setDate(1);
}


// POPUP A WINDOW WITH THE CALENDAR IN IT
function showCalendar(dateField) {

    // SET INITIAL VALUE OF THE DATE FIELD AND CREATE TOP AND BOTTOM FRAMES
    setDateField(dateField);

    // USE THE JAVASCRIPT-GENERATED DOCUMENTS (calDocTop, calDocBottom) IN THE FRAMESET
    calDocFrameset = 
        "<HTML><HEAD><TITLE>JavaScript Calendar</TITLE></HEAD>\n" +
        "<FRAMESET ROWS='70,*' FRAMEBORDER='0'>\n" +
        "  <FRAME NAME='topCalFrame' SRC='javascript:parent.opener.calDocTop' SCROLLING='no'>\n" +
        "  <FRAME NAME='bottomCalFrame' SRC='javascript:parent.opener.calDocBottom' SCROLLING='no'>\n" +
        "</FRAMESET>\n";

    // DISPLAY THE CALENDAR IN A NEW POPUP WINDOW
    top.newWin = window.open("javascript:parent.opener.calDocFrameset", "calWin", winPrefs);
    top.newWin.focus();
}


// CREATE THE TOP CALENDAR FRAME
function buildTopCalFrame() {

    // CREATE THE TOP FRAME OF THE CALENDAR
    var calDoc =
        "<HTML>" +
        "<HEAD>" +
        "<STYLE>" +
		"select {border: 2px solid #CCCCCC; color: #666666; font: 12px Arial;}" +
        "</STYLE>" +
        "</HEAD>" +
        "<BODY BGCOLOR='" + topBackground + "'>" +
        "<FORM NAME='calControl' onSubmit='return false;'>" +
        "<CENTER>" +
        "<TABLE CELLPADDING=0 CELLSPACING=1 BORDER=0>" +
        "<TR><TD COLSPAN=7>" +
        "<CENTER>" +
        getMonthSelect() +
        "<INPUT NAME='year' VALUE='" + calDate.getFullYear() + "'TYPE=TEXT SIZE=4 MAXLENGTH=4 onChange='parent.opener.setYear()' style='border: 2px solid #CCCCCC; color: #666666; font: 12px Arial; margin-left: 1px;'>" +
        "</CENTER>" +
        "</TD>" +
        "</TR>" +
        "<TR>" +
        "<TD COLSPAN=7>" +
        "<INPUT " +
        "TYPE=BUTTON NAME='previousYear' VALUE='<<'    onClick='parent.opener.setPreviousYear()' style='background: none; border: 2px solid #CCCCCC; color: #666666; font: 12px Arial; margin-right: 1px;'><INPUT " +
        "TYPE=BUTTON NAME='previousMonth' VALUE=' < '   onClick='parent.opener.setPreviousMonth()' style='background: none; border: 2px solid #CCCCCC; color: #666666; font: 12px Arial; margin-right: 1px;'><INPUT " +
        "TYPE=BUTTON NAME='today' VALUE='Today' onClick='parent.opener.setToday()' style='background: none; border: 2px solid #FEA500; color: #FF6600; font: 12px Arial;'><INPUT " +
        "TYPE=BUTTON NAME='nextMonth' VALUE=' > '   onClick='parent.opener.setNextMonth()' style='background: none; border: 2px solid #CCCCCC; color: #666666; font: 12px Arial; margin-left: 1px;'><INPUT " +
        "TYPE=BUTTON NAME='nextYear' VALUE='>>'    onClick='parent.opener.setNextYear()' style='background: none; border: 2px solid #CCCCCC; color: #666666; font: 12px Arial; margin-left: 1px;'>" +
        "</TD>" +
        "</TR>" +
        "</TABLE>" +
        "</CENTER>" +
        "</FORM>" +
        "</BODY>" +
        "</HTML>";

    return calDoc;
}


// CREATE THE BOTTOM CALENDAR FRAME 
// (THE MONTHLY CALENDAR)
function buildBottomCalFrame() {       

    // START CALENDAR DOCUMENT
    var calDoc = calendarBegin;

    // GET MONTH, AND YEAR FROM GLOBAL CALENDAR DATE
    month   = calDate.getMonth();
    year    = calDate.getFullYear();


    // GET GLOBALLY-TRACKED DAY VALUE (PREVENTS JAVASCRIPT DATE ANOMALIES)
    day     = calDay;

    var i   = 0;

    // DETERMINE THE NUMBER OF DAYS IN THE CURRENT MONTH
    var days = getDaysInMonth();

    // IF GLOBAL DAY VALUE IS > THAN DAYS IN MONTH, HIGHLIGHT LAST DAY IN MONTH
    if (day > days) {
        day = days;
    }

    // DETERMINE WHAT DAY OF THE WEEK THE CALENDAR STARTS ON
    var firstOfMonth = new Date (year, month, 1);

    // GET THE DAY OF THE WEEK THE FIRST DAY OF THE MONTH FALLS ON
    var startingPos  = firstOfMonth.getDay();
    days += startingPos;

    // KEEP TRACK OF THE COLUMNS, START A NEW ROW AFTER EVERY 7 COLUMNS
    var columnCount = 0;

    // MAKE BEGINNING NON-DATE CELLS BLANK
    for (i = 0; i < startingPos; i++) {

        calDoc += blankCell;
	columnCount++;
    }

    // SET VALUES FOR DAYS OF THE MONTH
    var currentDay = 0;
    var dayType    = "weekday";

    // DATE CELLS CONTAIN A NUMBER
    for (i = startingPos; i < days; i++) {

	var paddingChar = "&nbsp;";

        // ADJUST SPACING SO THAT ALL LINKS HAVE RELATIVELY EQUAL WIDTHS
        if (i-startingPos+1 < 10) {
            padding = "&nbsp;&nbsp;";
        }
        else {
            padding = "&nbsp;";
        }

        // GET THE DAY CURRENTLY BEING WRITTEN
        currentDay = i-startingPos+1;

        // SET THE TYPE OF DAY, THE focusDay GENERALLY APPEARS AS A DIFFERENT COLOR
        if (currentDay == day) {
            dayType = "focusDay";
        }
        else {
            dayType = "weekDay";
        }

        // ADD THE DAY TO THE CALENDAR STRING
        calDoc += "<TD align=center bgcolor='" + cellColor + "'>" +
                  "<a class='" + dayType + "' href='javascript:parent.opener.returnDate(" + 
                  currentDay + ")'>" + padding + currentDay + paddingChar + "</a></TD>";

        columnCount++;

        // START A NEW ROW WHEN NECESSARY
        if (columnCount % 7 == 0) {
            calDoc += "</TR><TR>";
        }
    }

    // MAKE REMAINING NON-DATE CELLS BLANK
    for (i=days; i<42; i++)  {

        calDoc += blankCell;
	columnCount++;

        // START A NEW ROW WHEN NECESSARY
        if (columnCount % 7 == 0) {
            calDoc += "</TR>";
            if (i<41) {
                calDoc += "<TR>";
            }
        }
    }

    // FINISH THE NEW CALENDAR PAGE
    calDoc += calendarEnd;

    // RETURN THE COMPLETED CALENDAR PAGE
    return calDoc;
}


// WRITE THE MONTHLY CALENDAR TO THE BOTTOM CALENDAR FRAME
function writeCalendar() {

    // CREATE THE NEW CALENDAR FOR THE SELECTED MONTH & YEAR
    calDocBottom = buildBottomCalFrame();

    // WRITE THE NEW CALENDAR TO THE BOTTOM FRAME
    top.newWin.frames['bottomCalFrame'].document.open();
    top.newWin.frames['bottomCalFrame'].document.write(calDocBottom);
    top.newWin.frames['bottomCalFrame'].document.close();
}


// SET THE CALENDAR TO TODAY'S DATE AND DISPLAY THE NEW CALENDAR
function setToday() {

    // SET GLOBAL DATE TO TODAY'S DATE
    calDate = new Date();

    // SET DAY MONTH AND YEAR TO TODAY'S DATE
		calDay = calDate.getDate();
    var month = calDate.getMonth();
    var year  = calDate.getFullYear();

    // SET MONTH IN DROP-DOWN LIST
    top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex = month;

    // SET YEAR VALUE
    top.newWin.frames['topCalFrame'].document.calControl.year.value = year;

    // DISPLAY THE NEW CALENDAR
    writeCalendar();
}


// SET THE GLOBAL DATE TO THE NEWLY ENTERED YEAR AND REDRAW THE CALENDAR
function setYear() {

    // GET THE NEW YEAR VALUE
    var year  = top.newWin.frames['topCalFrame'].document.calControl.year.value;

    // IF IT'S A FOUR-DIGIT YEAR THEN CHANGE THE CALENDAR
    if (isFourDigitYear(year)) {
        calDate.setFullYear(year);
        writeCalendar();
    }
    else {
        // HIGHLIGHT THE YEAR IF THE YEAR IS NOT FOUR DIGITS IN LENGTH
        top.newWin.frames['topCalFrame'].document.calControl.year.focus();
        top.newWin.frames['topCalFrame'].document.calControl.year.select();
    }
}


// SET THE GLOBAL DATE TO THE SELECTED MONTH AND REDRAW THE CALENDAR
function setCurrentMonth() {

    // GET THE NEWLY SELECTED MONTH AND CHANGE THE CALENDAR ACCORDINGLY
    var month = top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex;

    calDate.setMonth(month);
    writeCalendar();
}


// SET THE GLOBAL DATE TO THE PREVIOUS YEAR AND REDRAW THE CALENDAR
function setPreviousYear() {

    var year  = top.newWin.frames['topCalFrame'].document.calControl.year.value;

    if (isFourDigitYear(year) && year > 1000) {
        year--;
        calDate.setFullYear(year);
        top.newWin.frames['topCalFrame'].document.calControl.year.value = year;
        writeCalendar();
    }
}


// SET THE GLOBAL DATE TO THE PREVIOUS MONTH AND REDRAW THE CALENDAR
function setPreviousMonth() {

    var year  = top.newWin.frames['topCalFrame'].document.calControl.year.value;
    if (isFourDigitYear(year)) {
        var month = top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex;

        // IF MONTH IS JANUARY, SET MONTH TO DECEMBER AND DECREMENT THE YEAR
        if (month == 0) {
            month = 11;
            if (year > 1000) {
                year--;
                calDate.setFullYear(year);
                top.newWin.frames['topCalFrame'].document.calControl.year.value = year;
            }
        }
        else {
            month--;
        }
        calDate.setMonth(month);
        top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex = month;
        writeCalendar();
    }
}


// SET THE GLOBAL DATE TO THE NEXT MONTH AND REDRAW THE CALENDAR
function setNextMonth() {

    var year = top.newWin.frames['topCalFrame'].document.calControl.year.value;

    if (isFourDigitYear(year)) {
        var month = top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex;

        // IF MONTH IS DECEMBER, SET MONTH TO JANUARY AND INCREMENT THE YEAR
        if (month == 11) {
            month = 0;
            year++;
            calDate.setFullYear(year);
            top.newWin.frames['topCalFrame'].document.calControl.year.value = year;
        }
        else {
            month++;
        }
        calDate.setMonth(month);
        top.newWin.frames['topCalFrame'].document.calControl.month.selectedIndex = month;
        writeCalendar();
    }
}


// SET THE GLOBAL DATE TO THE NEXT YEAR AND REDRAW THE CALENDAR
function setNextYear() {

    var year  = top.newWin.frames['topCalFrame'].document.calControl.year.value;
    if (isFourDigitYear(year)) {
        year++;
        calDate.setFullYear(year);
        top.newWin.frames['topCalFrame'].document.calControl.year.value = year;
        writeCalendar();
    }
}


// GET NUMBER OF DAYS IN MONTH
function getDaysInMonth()  {

    var days;
    var month = calDate.getMonth()+1;
    var year  = calDate.getFullYear();

    // RETURN 31 DAYS
    if (month==1 || month==3 || month==5 || month==7 || month==8 ||
        month==10 || month==12)  {
        days=31;
    }
    // RETURN 30 DAYS
    else if (month==4 || month==6 || month==9 || month==11) {
        days=30;
    }
    // RETURN 29 DAYS
    else if (month==2)  {
        if (isLeapYear(year)) {
            days=29;
        }
        // RETURN 28 DAYS
        else {
            days=28;
        }
    }
    return (days);
}


// CHECK TO SEE IF YEAR IS A LEAP YEAR
function isLeapYear (Year) {

    if (((Year % 4)==0) && ((Year % 100)!=0) || ((Year % 400)==0)) {
        return (true);
    }
    else {
        return (false);
    }
}


// ENSURE THAT THE YEAR IS FOUR DIGITS IN LENGTH
function isFourDigitYear(year) {

    if (year.length != 4) {
        top.newWin.frames['topCalFrame'].document.calControl.year.value = calDate.getFullYear();
        top.newWin.frames['topCalFrame'].document.calControl.year.select();
        top.newWin.frames['topCalFrame'].document.calControl.year.focus();
    }
    else {
        return true;
    }
}


// BUILD THE MONTH SELECT LIST
function getMonthSelect() {

    // BROWSER LANGUAGE CHECK DONE PREVIOUSLY (navigator.language())
    // FIRST TWO CHARACTERS OF LANGUAGE STRING SPECIFIES THE LANGUAGE
    // (THE LAST THREE OPTIONAL CHARACTERS SPECIFY THE LANGUAGE SUBTYPE)
    // SET THE NAMES OF THE MONTH TO THE PROPER LANGUAGE (DEFAULT TO ENGLISH)

    // IF FRENCH
    if (selectedLanguage == "fr") {
        monthArray = new Array('Janvier', 'Février', 'Mars', 'Avril', 'Mai', 'Juin',
                               'Juillet', 'Aout', 'Septembre', 'Octobre', 'Novembre', 'Décembre');
    }
    // IF GERMAN
    else if (selectedLanguage == "de") {
        monthArray = new Array('Januar', 'Februar', 'März', 'April', 'Mai', 'Juni',
                               'Juli', 'August', 'September', 'Oktober', 'November', 'Dezember');
    }
    // IF SPANISH
    else if (selectedLanguage == "es") {
        monthArray = new Array('Enero', 'Febrero', 'Marzo', 'Abril', 'Mayo', 'Junio',
                               'Julio', 'Agosto', 'Septiembre', 'Octubre', 'Noviembre', 'Diciembre');
    }
    // DEFAULT TO ENGLISH
    else {
        monthArray = new Array('January', 'February', 'March', 'April', 'May', 'June',
                               'July', 'August', 'September', 'October', 'November', 'December');
    }

    // DETERMINE MONTH TO SET AS DEFAULT
    var activeMonth = calDate.getMonth();

    // START HTML SELECT LIST ELEMENT
    monthSelect = "<SELECT NAME='month' onChange='parent.opener.setCurrentMonth()'>";

    // LOOP THROUGH MONTH ARRAY
    for (i in monthArray) {
        
        // SHOW THE CORRECT MONTH IN THE SELECT LIST
        if (i == activeMonth) {
            monthSelect += "<OPTION SELECTED>" + monthArray[i] + "\n";
        }
        else {
            monthSelect += "<OPTION>" + monthArray[i] + "\n";
        }
    }
    monthSelect += "</SELECT>";

    // RETURN A STRING VALUE WHICH CONTAINS A SELECT LIST OF ALL 12 MONTHS
    return monthSelect;
}


// SET DAYS OF THE WEEK DEPENDING ON LANGUAGE
function createWeekdayList() {

    // IF FRENCH
    if (selectedLanguage == "fr") {
        weekdayList  = new Array('Dimanche', 'Lundi', 'Mardi', 'Mercredi', 'Jeudi', 'Vendredi', 'Samedi');
        weekdayArray = new Array('Di', 'Lu', 'Ma', 'Me', 'Je', 'Ve', 'Sa');
    }
    // IF GERMAN
    else if (selectedLanguage == "de") {
        weekdayList  = new Array('Sonntag', 'Montag', 'Dienstag', 'Mittwoch', 'Donnerstag', 'Freitag', 'Samstag');
        weekdayArray = new Array('So', 'Mo', 'Di', 'Mi', 'Do', 'Fr', 'Sa');
    }
    // IF SPANISH
    else if (selectedLanguage == "es") {
        weekdayList  = new Array('Domingo', 'Lunes', 'Martes', 'Miércoles', 'Jueves', 'Viernes', 'Sábado')
        weekdayArray = new Array('Do', 'Lu', 'Ma', 'Mi', 'Ju', 'Vi', 'Sa');
    }
    else {
        weekdayList  = new Array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');
        weekdayArray = new Array('Su','Mo','Tu','We','Th','Fr','Sa');
    }

    // START HTML TO HOLD WEEKDAY NAMES IN TABLE FORMAT
    var weekdays = "<TR BGCOLOR='" + headingCellColor + "'>";

    // LOOP THROUGH WEEKDAY ARRAY
    for (i in weekdayArray) {

        weekdays += "<TD class='heading' align=center>" + weekdayArray[i] + "</TD>";
    }
    weekdays += "</TR>";

    // RETURN TABLE ROW OF WEEKDAY ABBREVIATIONS TO DISPLAY ABOVE THE CALENDAR
    return weekdays;
}


// PRE-BUILD PORTIONS OF THE CALENDAR (FOR PERFORMANCE REASONS)
function buildCalParts() {

    // GENERATE WEEKDAY HEADERS FOR THE CALENDAR
    weekdays = createWeekdayList();

    // BUILD THE BLANK CELL ROWS
    blankCell = "<TD align=center>&nbsp;&nbsp;&nbsp;</TD>";

    // BUILD THE TOP PORTION OF THE CALENDAR PAGE USING CSS TO CONTROL SOME DISPLAY ELEMENTS
    calendarBegin =
        "<HTML>" +
        "<HEAD>" +
        // STYLESHEET DEFINES APPEARANCE OF CALENDAR
        "<STYLE type='text/css'>" +
        "<!--" +
        "TD.heading {border-bottom: 2px solid #CCCCCC; font: bold 15px Arial; padding: 0 2px 0 0;}" +
        "A.focusDay:link, A.focusDay:visited {background: white; border: 1px solid #FEA500; color: #FF6600; display: block; font: bold 15px Arial; margin: 2px 2px 0 0; text-decoration: none;}" +
        "A.focusDay:hover {text-decoration: none;}" +
        "A.weekday:link, A.weekday:visited {background: white; border: 1px solid #CCCCCC; color: #666666; display: block; font: bold 15px Arial; margin: 2px 2px 0 0; text-decoration: none;}" +
        "A.weekday:hover {text-decoration: none;}" +
        "-->" +
        "</STYLE>" +
        "</HEAD>" +
        "<BODY BGCOLOR='" + bottomBackground + "'" +
        "<CENTER>";

        // NAVIGATOR NEEDS A TABLE CONTAINER TO DISPLAY THE TABLE OUTLINES PROPERLY
        if (isNav) {
            calendarBegin += 
                "<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 ALIGN=CENTER><TR><TD>";
        }

        // BUILD WEEKDAY HEADINGS
        calendarBegin +=
            "<TABLE CELLPADDING=0 CELLSPACING=0 BORDER=0 ALIGN=CENTER>" +
            weekdays +
            "<TR>";


    // BUILD THE BOTTOM PORTION OF THE CALENDAR PAGE
    calendarEnd = "";

        // WHETHER OR NOT TO DISPLAY A THICK LINE BELOW THE CALENDAR
        if (bottomBorder) {
            calendarEnd += "<TR></TR>";
        }

        // NAVIGATOR NEEDS A TABLE CONTAINER TO DISPLAY THE BORDERS PROPERLY
        if (isNav) {
            calendarEnd += "</TD></TR></TABLE>";
        }

        // END THE TABLE AND HTML DOCUMENT
        calendarEnd +=
            "</TABLE>" +
            "</CENTER>" +
            "</BODY>" +
            "</HTML>";
}


// REPLACE ALL INSTANCES OF find WITH replace
// inString: the string you want to convert
// find:     the value to search for
// replace:  the value to substitute
//
// usage:    jsReplace(inString, find, replace);
// example:  jsReplace("To be or not to be", "be", "ski");
//           result: "To ski or not to ski"
//
function jsReplace(inString, find, replace) {

    var outString = "";

    if (!inString) {
        return "";
    }

    // REPLACE ALL INSTANCES OF find WITH replace
    if (inString.indexOf(find) != -1) {
        // SEPARATE THE STRING INTO AN ARRAY OF STRINGS USING THE VALUE IN find
        t = inString.split(find);

        // JOIN ALL ELEMENTS OF THE ARRAY, SEPARATED BY THE VALUE IN replace
        return (t.join(replace));
    }
    else {
        return inString;
    }
}


// ENSURE THAT VALUE IS TWO DIGITS IN LENGTH
function makeTwoDigit(inValue) {

    var numVal = parseInt(inValue, 10);

    // VALUE IS LESS THAN TWO DIGITS IN LENGTH
    if (numVal < 10) {

        // ADD A LEADING ZERO TO THE VALUE AND RETURN IT
        return("0" + numVal);
    }
    else {
        return numVal;
    }
}


// SET FIELD VALUE TO THE DATE SELECTED AND CLOSE THE CALENDAR WINDOW
function returnDate(inDay)
{

    // inDay = THE DAY THE USER CLICKED ON
    calDate.setDate(inDay);

    // SET THE DATE RETURNED TO THE USER
    var day           = calDate.getDate();
    var month         = calDate.getMonth()+1;
    var year          = calDate.getFullYear();
    var monthString   = monthArray[calDate.getMonth()];
    var monthAbbrev   = monthString.substring(0,3);
    var weekday       = weekdayList[calDate.getDay()];
    var weekdayAbbrev = weekday.substring(0,3);

    outDate = calDateFormat;

    // RETURN TWO DIGIT DAY
    if (calDateFormat.indexOf("DD") != -1) {
        day = makeTwoDigit(day);
        outDate = jsReplace(outDate, "DD", day);
    }
    // RETURN ONE OR TWO DIGIT DAY
    else if (calDateFormat.indexOf("D") != -1) {
        outDate = jsReplace(outDate, "D", day);
    }

    // RETURN TWO DIGIT MONTH
    if (calDateFormat.indexOf("MM") != -1) {
        month = makeTwoDigit(month);
        outDate = jsReplace(outDate, "MM", month);
    }
    // RETURN ONE OR TWO DIGIT MONTH
    else if (calDateFormat.indexOf("M") != -1) {
        outDate = jsReplace(outDate, "M", month);
    }

    // RETURN FOUR-DIGIT YEAR
    if (calDateFormat.indexOf("YYYY") != -1) {
        outDate = jsReplace(outDate, "YYYY", year);
    }
    // RETURN TWO-DIGIT YEAR
    else if (calDateFormat.indexOf("YY") != -1) {
        var yearString = "" + year;
        var yearString = yearString.substring(2,4);
        outDate = jsReplace(outDate, "YY", yearString);
    }

    // RETURN DAY OF MONTH (Initial Caps)
    if (calDateFormat.indexOf("Month") != -1) {
        outDate = jsReplace(outDate, "Month", monthString);
    }
    // RETURN DAY OF MONTH (lowercase letters)
    else if (calDateFormat.indexOf("month") != -1) {
        outDate = jsReplace(outDate, "month", monthString.toLowerCase());
    }
    // RETURN DAY OF MONTH (UPPERCASE LETTERS)
    else if (calDateFormat.indexOf("MONTH") != -1) {
        outDate = jsReplace(outDate, "MONTH", monthString.toUpperCase());
    }

    // RETURN DAY OF MONTH 3-DAY ABBREVIATION (Initial Caps)
    if (calDateFormat.indexOf("Mon") != -1) {
        outDate = jsReplace(outDate, "Mon", monthAbbrev);
    }
    // RETURN DAY OF MONTH 3-DAY ABBREVIATION (lowercase letters)
    else if (calDateFormat.indexOf("mon") != -1) {
        outDate = jsReplace(outDate, "mon", monthAbbrev.toLowerCase());
    }
    // RETURN DAY OF MONTH 3-DAY ABBREVIATION (UPPERCASE LETTERS)
    else if (calDateFormat.indexOf("MON") != -1) {
        outDate = jsReplace(outDate, "MON", monthAbbrev.toUpperCase());
    }

    // RETURN WEEKDAY (Initial Caps)
    if (calDateFormat.indexOf("Weekday") != -1) {
        outDate = jsReplace(outDate, "Weekday", weekday);
    }
    // RETURN WEEKDAY (lowercase letters)
    else if (calDateFormat.indexOf("weekday") != -1) {
        outDate = jsReplace(outDate, "weekday", weekday.toLowerCase());
    }
    // RETURN WEEKDAY (UPPERCASE LETTERS)
    else if (calDateFormat.indexOf("WEEKDAY") != -1) {
        outDate = jsReplace(outDate, "WEEKDAY", weekday.toUpperCase());
    }

    // RETURN WEEKDAY 3-DAY ABBREVIATION (Initial Caps)
    if (calDateFormat.indexOf("Wkdy") != -1) {
        outDate = jsReplace(outDate, "Wkdy", weekdayAbbrev);
    }
    // RETURN WEEKDAY 3-DAY ABBREVIATION (lowercase letters)
    else if (calDateFormat.indexOf("wkdy") != -1) {
        outDate = jsReplace(outDate, "wkdy", weekdayAbbrev.toLowerCase());
    }
    // RETURN WEEKDAY 3-DAY ABBREVIATION (UPPERCASE LETTERS)
    else if (calDateFormat.indexOf("WKDY") != -1) {
        outDate = jsReplace(outDate, "WKDY", weekdayAbbrev.toUpperCase());
    }

    // SET THE VALUE OF THE FIELD THAT WAS PASSED TO THE CALENDAR
    calDateField.value = outDate;

    // GIVE FOCUS BACK TO THE DATE FIELD
    calDateField.focus();

    // CLOSE THE CALENDAR WINDOW
    top.newWin.close()
}

	function parseDateFormat(maskStr)
	{
		var totalFormats = dateFormats.length;
		var mask = new Array();
		var maskIndex = 0;
		var chars = ""; 
		var dateFormat = "";
		var firstChar = "";
		while(maskStr.length > 0) {
			firstChar = maskStr.substring(0, 1);
			if (firstChar == "\\") {
				chars += maskStr.substring(0, 1);
				maskStr = maskStr.substring(1);
			} else {
				for(var i = 0; i < totalFormats; i++) {
					var re = new RegExp("^" + dateFormats[i]); 
	  			if (re.exec(maskStr)) {
						dateFormat = dateFormats[i];
						maskStr = maskStr.substring(dateFormat.length);
						break;
					}
				}
			}
			if(dateFormat == "") {
				chars += maskStr.substring(0, 1);
				maskStr = maskStr.substring(1);
			} else {
				if(chars.length > 0) {
					mask[maskIndex] = chars;
					maskIndex++;
					chars = "";
				}
				mask[maskIndex] = dateFormat;
				maskIndex++;
				dateFormat = "";
			}
		}
		if(chars.length > 0) {
			mask[maskIndex] = chars;
			maskIndex++;
			chars = "";
		}
		return mask;
	}

function getDateFormatted(mask, dateVal)
{
	var formatedDate = "";
	if (!(mask instanceof Array)) {
		mask = parseDateFormat(mask);
	}
	if (!dateVal) {
		dateVal = new Date();
	}
	if (mask instanceof Array) {
	  for(var i = 0; i < mask.length; i++) {
      switch (mask[i])
      {
				case "YYYY":
					formatedDate += dateVal.getFullYear(); break;
				case "YY":
					formatedDate += dateVal.getFullYear().substring(2); break;
				case "WWWW":
					formatedDate += fullWeekdays[dateVal.getDay()]; 
					break;
				case "WWW":
					formatedDate += shortWeekdays[dateVal.getDay()]; 
					break;
				case "MMMM":
					formatedDate += fullMonths[dateVal.getMonth()];
					break;
				case "MMM":
					formatedDate += shortMonths[dateVal.getMonth()];
					break;
				case "MM":
					var dateMonth = dateVal.getMonth()+1;
					formatedDate += (dateMonth < 10) ? "0"+dateMonth : dateMonth; 
					break;
				case "M":
					formatedDate += dateVal.getMonth()+1; 
					break;
				case "DD":
					var dateDay = dateVal.getDate();
					formatedDate += (dateDay < 10) ? "0"+dateDay : dateDay; 
					break;
				case "D":
					formatedDate += dateVal.getDate(); break;
        default:
					//formatedDate += stripslashes(mask[i]);
					formatedDate += mask[i];
			}
		}
	} else {
		// no format selected
		formatedDate = dateVal.getFullYear()+"-"+dateVal.getMonth()+"-"+dateVal.getDate();
	}
	return formatedDate;
}

function setDatePeriod(formObj, periodName, startName, endName, dateFormat)
{
	var periodType = formObj.elements[periodName].options[formObj.elements[periodName].selectedIndex].value;

  var curDate  = new Date();
	var curYear  = curDate.getFullYear();
	var curMonth = curDate.getMonth();
	var curDay   = curDate.getDate();
	var startDate = "";
	var endDate = "";
	if (periodType == "today" || periodType == "1") {
		startDate = curDate;
		endDate = curDate;
	} else if (periodType == "yesterday" || periodType == "2") {
		startDate = new Date(curYear, curMonth, curDay - 1);
		endDate = new Date(curYear, curMonth, curDay - 1);
	} else if (periodType == "last7days" || periodType == "3") {
		startDate = new Date(curYear, curMonth, curDay - 6);
		endDate = curDate;
	} else if (periodType == "thismonth" || periodType == "4") {
		startDate = new Date(curYear, curMonth, 1);
		endDate = curDate;
	} else if (periodType == "lastmonth" || periodType == "prevmonth" || periodType == "5") {
		startDate = new Date(curYear, curMonth - 1, 1);
		endDate = new Date(curYear, curMonth, 0);
	} else if (periodType == "thisquarter" || periodType == "6") {
		startDate = new Date(curYear, Math.floor(curMonth / 3) * 3, 1);
		endDate = curDate;
	} else if (periodType == "thisyear" || periodType == "7") {
		startDate = new Date(curYear, 0, 1);
		endDate = curDate;
	}

	if (startDate) {
		formObj.elements[startName].value = getDateFormatted(dateFormat, startDate);
	} else {
		formObj.elements[startName].value = "";
	}
	if (endDate) {
		formObj.elements[endName].value = getDateFormatted(dateFormat, endDate);
	} else {
		formObj.elements[endName].value = "";
	}
}