/* Preload images script */
var myimages = new Array()

function preloadimages() {
    for (i = 0; i < preloadimages.arguments.length; i++) {
        myimages[i] = new Image();
        myimages[i].src = preloadimages.arguments[i];
    }
}


/***************************************************************************************
JavaScript Calendar - Digital Christian Design
//Script featured on and available at JavaScript Kit: http://www.javascriptkit.com
// Functions
changedate(): Moves to next or previous month or year, or current month depending on the button clicked.
createCalendar(): Renders the calander into the page with links for each to fill the date form filds above.
			
***************************************************************************************/

var thisDate = 1; 						// Tracks current date being written in calendar
var wordMonth = new Array("January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December");
var today = new Date(); 						// Date object to store the current date
var todaysDay = today.getDay() + 1; 				// Stores the current day number 1-7
var todaysDate = today.getDate(); 				// Stores the current numeric date within the month
var todaysMonth = today.getUTCMonth() + 1; 			// Stores the current month 1-12
var todaysYear = today.getFullYear(); 				// Stores the current year
var monthNum = todaysMonth; 					// Tracks the current month being displayed
var yearNum = todaysYear; 					// Tracks the current year being displayed
var firstDate = new Date(String(monthNum) + "/1/" + String(yearNum)); // Object Storing the first day of the current month
var firstDay = firstDate.getUTCDay(); 				// Tracks the day number 1-7 of the first day of the current month
var lastDate = new Date(String(monthNum + 1) + "/0/" + String(yearNum)); // Tracks the last date of the current month
var numbDays = 0;
var calendarString = "";
var eastermonth = 0;
var easterday = 0;


function changedate(buttonpressed) {
    if (buttonpressed == "prevyr") yearNum--;
    else if (buttonpressed == "nextyr") yearNum++;
    else if (buttonpressed == "prevmo") monthNum--;
    else if (buttonpressed == "nextmo") monthNum++;
    else if (buttonpressed == "return") {
        monthNum = todaysMonth;
        yearNum = todaysYear;
    }

    if (monthNum == 0) {
        monthNum = 12;
        yearNum--;
    }
    else if (monthNum == 13) {
        monthNum = 1;
        yearNum++
    }

    lastDate = new Date(String(monthNum + 1) + "/0/" + String(yearNum));
    numbDays = lastDate.getDate();
    firstDate = new Date(String(monthNum) + "/1/" + String(yearNum));
    firstDay = firstDate.getDay() + 1;
    createCalendar();
    return;
}


function easter(year) {
    // feed in the year it returns the month and day of Easter using two GLOBAL variables: eastermonth and easterday
    var a = year % 19;
    var b = Math.floor(year / 100);
    var c = year % 100;
    var d = Math.floor(b / 4);
    var e = b % 4;
    var f = Math.floor((b + 8) / 25);
    var g = Math.floor((b - f + 1) / 3);
    var h = (19 * a + b - d - g + 15) % 30;
    var i = Math.floor(c / 4);
    var j = c % 4;
    var k = (32 + 2 * e + 2 * i - h - j) % 7;
    var m = Math.floor((a + 11 * h + 22 * k) / 451);
    var month = Math.floor((h + k - 7 * m + 114) / 31);
    var day = ((h + k - 7 * m + 114) % 31) + 1;
    eastermonth = month;
    easterday = day;
    var EventID = "";
}


function createCalendar() {
    calendarString = '';
    var daycounter = 0;
    calendarString += '<table width="280" border="0" cellpadding="0" cellspacing="1">';
    calendarString += '<tr>';
    //calendarString += '<td align=\"center\" valign=\"center\" width=\"40\" height=\"40\"><a href=\"#\" onMouseOver=\"document.PrevYr.src=\'images\/PrevYrOn40x40\.jpg\';\" onMouseOut=\"document.PrevYr.src=\'images\/PrevYrOff40x40\.jpg\';\" onClick=\"changedate(\'prevyr\')\"><img name=\"PrevYr\" src=\"images\/PrevYrOff40x40\.jpg\" width=\"40\" height=\"40\" border=\"0\" alt=\"Prev Yr\"\/><\/a><\/td>';
    //calendarString += '<td colspan=\"2\" align=\"center\" valign=\"center\" width=\"80\" height=\"40\"><a href=\"#\" onMouseOver=\"document.PrevMo.src=\'images\/PrevMoOn40x40\.jpg\';\" onMouseOut=\"document.PrevMo.src=\'images\/PrevMoOff40x40\.jpg\';\" onClick=\"changedate(\'prevmo\')\"><img name=\"PrevMo\" src=\"images\/PrevMoOff40x40\.jpg\" width=\"40\" height=\"40\" border=\"0\" alt=\"Prev Mo\"\/><\/a><\/td>';
    calendarString += '<td bgcolor=\"#DFDFD3\" colspan=\"2\" align=\"center\" valign=\"center\" width=\"80\" height=\"25\"><a href=\"#\" onClick=\"changedate(\'prevmo\')\"><<<\/a><\/td>';
    calendarString += '<td bgcolor=\"#DFDFD3\" align=\"center\" valign=\"center\" width=\"120\" height=\"25\" colspan=\"3\"><b>' + wordMonth[monthNum - 1] + '&nbsp;&nbsp;' + yearNum + '<\/b><\/td>';
    calendarString += '<td bgcolor=\"#DFDFD3\" colspan=\"2\" align=\"center\" valign=\"center\" width=\"80\" height=\"25\"><a href=\"#\" onClick=\"changedate(\'nextmo\')\">>><\/a><\/td>';
    //calendarString += '<td colspan=\"2\" align=\"center\" valign=\"center\" width=\"80\" height=\"40\"><a href=\"#\" onMouseOver=\"document.NextMo.src=\'images\/NextMoOn40x40\.jpg\';\" onMouseOut=\"document.NextMo.src=\'images\/NextMoOff40x40\.jpg\';\" onClick=\"changedate(\'nextmo\')\"><img name=\"NextMo\" src=\"images\/NextMoOff40x40\.jpg\" width=\"40\" height=\"40\" border=\"0\" alt=\"Next Mo\"\/><\/a><\/td>';
    //calendarString += '<td align=\"center\" valign=\"center\" width=\"40\" height=\"40\"><a href=\"#\" onMouseOver=\"document.NextYr.src=\'images\/NextYrOn40x40\.jpg\';\" onMouseOut=\"document.NextYr.src=\'images\/NextYrOff40x40\.jpg\';\" onClick=\"changedate(\'nextyr\')\"><img name=\"NextYr\" src=\"images\/NextYrOff40x40\.jpg\" width=\"40\" height=\"40\" border=\"0\" alt=\"Next Yr\"\/><\/a><\/td>';
    calendarString += '<\/tr>';
    calendarString += '<tr>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Sun<\/td>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Mon<\/td>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Tue<\/td>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Wed<\/td>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Thu<\/td>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Fri<\/td>';
    calendarString += '<td bgcolor=\"#D9E2E1\" align=\"center\" valign=\"center\" width=\"40\" height=\"22\">Sat<\/td>';
    calendarString += '<\/tr>';

    thisDate == 1;

    for (var i = 1; i <= 6; i++) {
        calendarString += '<tr>';
        for (var x = 1; x <= 7; x++) {
            daycounter = (thisDate - firstDay) + 1;
            thisDate++;
            if ((daycounter > numbDays) || (daycounter < 1)) {
                calendarString += '<td align=\"center\" bgcolor=\"#CFD0C2\" height=\"30\" width=\"40\">&nbsp;<\/td>';
            } else {
                if (checkevents(daycounter, monthNum, yearNum, i, x) || ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum))) {
                    if ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum)) {
                        if (checkevents(daycounter, monthNum, yearNum, i, x)) {
                        calendarString += '<td align=\"center\" bgcolor=\"#028DBB\" height=\"30\" width=\"40\"><a href=\"/calendar/event/' + EventID + '/EventDetails.aspx\">' + daycounter + '<\/a><\/td>';
                        }else{
                        calendarString += '<td align=\"center\" bgcolor=\"#028DBB\" height=\"30\" width=\"40\"><a href=\"javascript:void(0);\">' + daycounter + '<\/a><\/td>';
                        }
                        
                    }
                    else calendarString += '<td align=\"center\" bgcolor=\"#C6DCF0\" height=\"30\" width=\"40\"><a href=\"/calendar/event/' + EventID + '/EventDetails.aspx\">' + daycounter + '<\/a><\/td>';
                } else {
                    calendarString += '<td align=\"center\" bgcolor=\"#FFFFFF\" height=\"30\" width=\"40\">' + daycounter + '<\/td>';
                }
            }
        }
        calendarString += '<\/tr>';
    }

    calendarString += '<tr><td colspan=\"7\" nowrap align=\"center\" valign=\"center\" width=\"280\" height=\"10\"><\/td><\/tr><\/table>';

    var object = document.getElementById('calendar');
    object.innerHTML = calendarString;
    thisDate = 1;
}


function checkevents(day, month, year, week, dayofweek) {
    var numevents = 0;
    var floater = 0;

    for (var i = 0; i < events.length; i++) {
        if (events[i][0] == "W") {
            if ((events[i][2] == dayofweek)) numevents++;
        }
        else if (events[i][0] == "Y") {
            if ((events[i][2] == day) && (events[i][1] == month)) numevents++;
        }
        else if (events[i][0] == "F") {
            if ((events[i][1] == 3) && (events[i][2] == 0) && (events[i][3] == 0)) {
                easter(year);
                if (easterday == day && eastermonth == month) numevents++;
            } else {
                floater = floatingholiday(year, events[i][1], events[i][2], events[i][3]);
                if ((month == 5) && (events[i][1] == 5) && (events[i][2] == 4) && (events[i][3] == 2)) {
                    if ((floater + 7 <= 31) && (day == floater + 7)) {
                        numevents++;
                    } else if ((floater + 7 > 31) && (day == floater)) numevents++;
                } else if ((events[i][1] == month) && (floater == day)) numevents++;
            }
        }
        else if ((events[i][2] == day) && (events[i][1] == month) && (events[i][3] == year)) {
            EventID = events[i][6];
            numevents++;
        }
    }

    if (numevents == 0) {
        return false;
    } else {
        return true;
    }
}


function showevents(day, month, year, week, dayofweek) {
    var theevent = "";
    var floater = 0;

    for (var i = 0; i < events.length; i++) {
        // First we'll process recurring events (if any):
        if (events[i][0] != "") {
            if (events[i][0] == "D") {
            }
            if (events[i][0] == "W") {
                if ((events[i][2] == dayofweek)) {
                    theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
                    theevent += events[i][6] + '\n';
                    theevent += 'Start Time: ' + events[i][4] + '\n';
                    theevent += 'Ending Time: ' + events[i][5] + '\n';
                    theevent += 'Description: ' + events[i][7] + '\n';
                    theevent += '\n -------------- \n\n';
                    document.forms.eventform.eventlist.value = theevent;
                }
            }
            if (events[i][0] == "M") {
            }
            if (events[i][0] == "Y") {
                if ((events[i][2] == day) && (events[i][1] == month)) {
                    theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
                    theevent += events[i][6] + '\n';
                    theevent += 'Start Time: ' + events[i][4] + '\n';
                    theevent += 'Ending Time: ' + events[i][5] + '\n';
                    theevent += 'Description: ' + events[i][7] + '\n';
                    theevent += '\n -------------- \n\n';
                    document.forms.eventform.eventlist.value = theevent;
                }
            }
            if (events[i][0] == "F") {
                if ((events[i][1] == 3) && (events[i][2] == 0) && (events[i][3] == 0)) {
                    if (easterday == day && eastermonth == month) {
                        theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
                        theevent += events[i][6] + '\n';
                        theevent += 'Start Time: ' + events[i][4] + '\n';
                        theevent += 'Ending Time: ' + events[i][5] + '\n';
                        theevent += 'Description: ' + events[i][7] + '\n';
                        theevent += '\n -------------- \n\n';
                        document.forms.eventform.eventlist.value = theevent;
                    }
                } else {
                    floater = floatingholiday(year, events[i][1], events[i][2], events[i][3]);

                    if ((month == 5) && (events[i][1] == 5) && (events[i][2] == 4) && (events[i][3] == 2)) {
                        if ((floater + 7 <= 31) && (day == floater + 7)) {
                            theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
                            theevent += events[i][6] + '\n';
                            theevent += 'Start Time: ' + events[i][4] + '\n';
                            theevent += 'Ending Time: ' + events[i][5] + '\n';
                            theevent += 'Description: ' + events[i][7] + '\n';
                            theevent += '\n -------------- \n\n';
                            document.forms.eventform.eventlist.value = theevent;
                        } else if ((floater + 7 > 31) && (day == floater)) {
                            theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
                            theevent += events[i][6] + '\n';
                            theevent += 'Start Time: ' + events[i][4] + '\n';
                            theevent += 'Ending Time: ' + events[i][5] + '\n';
                            theevent += 'Description: ' + events[i][7] + '\n';
                            theevent += '\n -------------- \n\n';
                            document.forms.eventform.eventlist.value = theevent;
                        }
                    } else if ((events[i][1] == month) && (floater == day)) {
                        theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
                        theevent += events[i][6] + '\n';
                        theevent += 'Start Time: ' + events[i][4] + '\n';
                        theevent += 'Ending Time: ' + events[i][5] + '\n';
                        theevent += 'Description: ' + events[i][7] + '\n';
                        theevent += '\n -------------- \n\n';
                        document.forms.eventform.eventlist.value = theevent;
                    }
                }
            }
        }
        // Now we'll process any One Time events happening on the matching month, day, year:
        else if ((events[i][2] == day) && (events[i][1] == month) && (events[i][3] == year)) {
            theevent += "Events of: \n" + month + '/' + day + '/' + year + '\n';
            theevent += events[i][6] + '\n';
            theevent += 'Start Time: ' + events[i][4] + '\n';
            theevent += 'Ending Time: ' + events[i][5] + '\n';
            theevent += 'Description: ' + events[i][7] + '\n';
            theevent += '\n -------------- \n\n';
            document.forms.eventform.eventlist.value = theevent;
        }
    }
    if (theevent == "") document.forms.eventform.eventlist.value = 'No events to show.';
}


function floatingholiday(targetyr, targetmo, cardinaloccurrence, targetday) {
    // Floating holidays/events of the events.js file uses:
    //	the Month field for the Month (here it becomes the targetmo field)
    //	the Day field as the Cardinal Occurrence  (here it becomes the cardinaloccurrence field)
    //		1=1st, 2=2nd, 3=3rd, 4=4th, 5=5th, 6=6th occurrence of the day listed next
    //	the Year field as the Day of the week the event/holiday falls on  (here it becomes the targetday field)
    //		1=Sunday, 2=Monday, 3=Tuesday, 4=Wednesday, 5=Thurday, 6=Friday, 7=Saturday
    //	example: "F",	"1",	"3",	"2", = Floating holiday in January on the 3rd Monday of that month.
    //
    // In our code below:
    // 	targetyr is the active year
    // 	targetmo is the active month (1-12)
    // 	cardinaloccurrence is the xth occurrence of the targetday (1-6)
    // 	targetday is the day of the week the floating holiday is on
    //		0=Sun; 1=Mon; 2=Tue; 3=Wed; 4=Thu; 5=Fri; 6=Sat
    //		Note: subtract 1 from the targetday field if the info comes from the events.js file
    //
    // Note:
    //	If Memorial Day falls on the 22nd, 23rd, or 24th, then we add 7 to the dayofmonth to the result.
    //
    // Example: targetyr = 2052; targetmo = 5; cardinaloccurrence = 4; targetday = 1
    //	This is the same as saying our floating holiday in the year 2052, is during May, on the 4th Monday
    //
    var firstdate = new Date(String(targetmo) + "/1/" + String(targetyr)); // Object Storing the first day of the current month.
    var firstday = firstdate.getUTCDay(); // The first day (0-6) of the target month.
    var dayofmonth = 0; // zero out our calendar day variable.

    targetday = targetday - 1;

    if (targetday >= firstday) {
        cardinaloccurrence--; // Subtract 1 from cardinal day.
        dayofmonth = (cardinaloccurrence * 7) + ((targetday - firstday) + 1);
    } else {
        dayofmonth = (cardinaloccurrence * 7) + ((targetday - firstday) + 1);
    }
    return dayofmonth;
}