/* 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("Janvier","F&eacute;vrier","Mars","Avril","Mai","Juin","Juillet","Ao&ucirc;t","Septembre","Octobre","Novembre","D&eacute;cembre");
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;
var typefilter = -1;


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 jumptodate(month, year) {
	monthNum = month;
	yearNum = year;
	
	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();
}


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;
}


function createCalendar() {
	calendarString = '';
	var daycounter = 0;
	calendarString += '<table border="0" cellpadding="0" cellspacing="0">';
	calendarString += '<tr>';
	//calendarString += '<td align=\"center\" valign=\"center\" ><a href=\"#\" onClick=\"changedate(\'prevyr\')\"><img name=\"PrevYr\" src=\"'+cal_prev_arrow+'\"  border=\"0\" alt=\"Annee prec.\"/></a></td>';
	calendarString += '<td colspan="2" class="navleft" align=\"center\" valign=\"center\" ><a href=\"#\" onClick=\"changedate(\'prevmo\')\"><img name=\"PrevMo\" src=\"'+cal_prev_arrow+'\"  border=\"0\" alt=\"Mois prec.\"/></a></td>';
	calendarString += '<td  align=\"center\" class="currentmonth" valign=\"center\" colspan=\"3\"><b>' + wordMonth[monthNum-1] + ' ' + yearNum + '</b></td>';
	calendarString += '<td class="navright" colspan="2" align=\"center\" valign=\"center\" ><a href=\"#\" onClick=\"changedate(\'nextmo\')\"><img name=\"NextMo\" src=\"'+cal_next_arrow+'\"  border=\"0\" alt=\"Mois suiv.\"/></a></td>';
	//calendarString += '<td align=\"center\" valign=\"center\" ><a href=\"#\" onClick=\"changedate(\'nextyr\')\"><img name=\"NextYr\" src=\"'+cal_next_arrow+'\"  border=\"0\" alt=\"Annee suiv.\"/></a></td>';
	calendarString += '</tr>';
	calendarString += '</table>';
	calendarString += '<table border="0" cellpadding="0" cellspacing="0" class="table2">';
	calendarString += '<tr>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >D</td>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >L</td>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >M</td>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >M</td>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >J</td>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >V</td>';
	calendarString += '<td class="calday" align=\"center\" valign=\"center\" >S</td>';
	calendarString += '</tr>';

	thisDate == 1;
	
	//alert("filtering with "+typefilter);


	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\" class="emptycell" >&nbsp;</td>';
			} else {
				var numofevents = checkevents(daycounter,monthNum,yearNum,i,x);
				if (numofevents || ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum))){	// si date = aujourd'hui OU events à cette date
					if ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum)) { /* aujourd'hui */
						calendarString += '<td align=\"center\" class="currentday"';
						if (numofevents > 1) {	// aujourd'hui ET events
							var thisevent = getevents(daycounter, monthNum, yearNum, i, x);
							calendarString += ' multipleevents"';
						}
						else if (numofevents == 1) { // aujourd'hui ET un event
							var thisevent = getevents(daycounter, monthNum, yearNum, i, x);
							//alert("buh "+thisevent);
							calendarString += ' event evttype_'+thisevent[0][8]+'"';	
						}
						//calendarString += '><a href=\"javascript:showevents(' + daycounter + ',' + monthNum + ',' + yearNum + ',' + i + ',' + x + ')\">' + daycounter + '</a></td>';
						if (numofevents) {
							calendarString += '><a href="'+thisevent[0][9]+'">' + daycounter + '</a></td>';
						}
						else {
							calendarString += '>' + daycounter + '</td>';
						}
					}
 					else {	/* autre jour */
						var thisevent = getevents(daycounter, monthNum, yearNum, i, x);
					
						calendarString += '<td align=\"center\" ' ;
						if (numofevents > 1) {
							calendarString += 'class="multipleevents"';
						}
						else {
							
							//alert(thisevent);
							calendarString += 'class="event evttype_'+thisevent[0][8]+'"';
						}
						//calendarString += '><a href=\"javascript:showevents(' + daycounter + ',' + monthNum + ',' + yearNum + ',' + i + ',' + x + ')\">' + daycounter + '</a></td>';
						calendarString += '><a href="'+thisevent[0][9]+'">' + daycounter + '</a></td>';
					}
				} else {
					calendarString += '<td align=\"center\">' + daycounter + '</td>';
				}
			}
		}
		calendarString += '</tr>';
	}

	//calendarString += '<tr><td colspan=\"7\" nowrap align=\"center\" valign=\"center\" bgcolor=\"#C8C896\" ><a href=\"javascript:changedate(\'return\')\"><b>Show Current Date</b></a></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++) {
		//alert(events[i][6]+" "+events[i][8]);
		if (typefilter == -1 || events[i][8] == typefilter) {	// pas de filtre ou event du type filtré
			//alert("checking "+events[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)) {
				numevents++;
			}
		}
	}

	return numevents;
}

function getevents(day,month,year,week,dayofweek) {
	var res = [];
	var floater = 0;

	for (var i = 0; i < events.length; i++) {
		if (typefilter == -1 || events[i][8] == typefilter) {	// pas de filtre ou event du type filtré
			if (events[i][0] == "W") {
				if ((events[i][2] == dayofweek)) res.push(events[i]);
			}
			else if (events[i][0] == "Y") {
				if ((events[i][2] == day) && (events[i][1] == month)) res.push(events[i]);
			}
			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) res.push(events[i]);
				} 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)) {
							res.push(events[i]);
						} else if ((floater + 7 > 31) && (day == floater)) res.push(events[i]);
					} else if ((events[i][1] == month) && (floater == day)) res.push(events[i]);
				}
			}
			else if ((events[i][2] == day) && (events[i][1] == month) && (events[i][3] == year)) {
				res.push(events[i]);
			}
		}
	}

	return res;
}


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;
}

function calChangeFilter(x) {
	//alert(x);
	typefilter = x;	
	createCalendar();
}