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;
var eventdate ="";
eventdate ='style=\"background-color:#06F; font-size:.7em; \"';

// 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];
	}
}

//close button to hide the info box
function hideDiv() {
document.getElementById("calDate").style.display="none";
}

//Used to hide after a mouseover event to hide the info box
function hideMouseOver() {
document.getElementById("mouseover").style.display="none";
}

function changedate(buttonpressed) {
	if (buttonpressed == "prevyr") yearNum--; //back a year
	else if (buttonpressed == "nextyr") yearNum++; //forward a year
	else if (buttonpressed == "prevmo") monthNum--; //back a month
	else if (buttonpressed == "nextmo") monthNum++; //forward a month
	else  if (buttonpressed == "return") { //back to current month and year
		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;
}

// feed in the year it returns the month and day of Easter using two GLOBAL variables: eastermonth and easterday
function easter(year) {
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=\"2\" cellspacing=\"2\" class=\"mainbackground\">';
	calendarString += '<tr class=\"currentDate\">';
	
	calendarString += '<td><a href=\"#\" onMouseOver=\"document.PrevYr.src=\'\/calendar2\/images\/yearb2\.png\';\" onMouseOut=\"document.PrevYr.src=\'\/calendar2\/images\/yearb\.png\';\" onClick=\"changedate(\'prevyr\')\"><img name=\"PrevYr\" src=\"\/calendar2\/images\/yearb\.png\" width=\"19\" height=\"23\" border=\"0\" alt=\"Prev Yr\" title=\"Back a Year\" \/><\/a><\/td>';
	
	calendarString += '<td><a href=\"#\" onMouseOver=\"document.PrevMo.src=\'\/calendar2\/images\/monthb2\.png\';\" onMouseOut=\"document.PrevMo.src=\'\/calendar2\/images\/monthb\.png\';\" onClick=\"changedate(\'prevmo\')\"><img name=\"PrevMo\" src=\"\/calendar2\/images\/monthb\.png\" width=\"19\" height=\"23\" border=\"0\" alt=\"Prev Mo\" title=\"Back a Month\" \/><\/a><\/td>';
	
	calendarString += '<td colspan=\"3\" class=\"monthyear\"><strong>' + wordMonth[monthNum-1] + '<br \/>' + yearNum + '<\/strong><\/td>';
	
	calendarString += '<td><a href=\"#\" onMouseOver=\"document.NextMo.src=\'\/calendar2\/images\/monthf2\.png\';\" onMouseOut=\"document.NextMo.src=\'\/calendar2\/images\/monthf\.png\';\" onClick=\"changedate(\'nextmo\')\"><img name=\"NextMo\" src=\"\/calendar2\/images\/monthf\.png\" width=\"19\" height=\"23\" border=\"0\" alt=\"Next Mo\" title=\"Next Month\" \/><\/a><\/td>';
	
	calendarString += '<td><a href=\"#\" onMouseOver=\"document.NextYr.src=\'\/calendar2\/images\/yearf2\.png\';\" onMouseOut=\"document.NextYr.src=\'\/calendar2\/images\/yearf\.png\';\" onClick=\"changedate(\'nextyr\')\"><img name=\"NextYr\" src=\"\/calendar2\/images\/yearf\.png\" width=\"19\" height=\"23\" border=\"0\" alt=\"Next Yr\" title=\"Next Year\" \/><\/a><\/td>';
	
	calendarString += '<\/tr>';
	
	calendarString += '<tr>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">Sun<\/td>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">Mon<\/td>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">Tue<\/td>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">Wed<\/td>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">Thu<\/td>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">Fri<\/td>';
	calendarString += '<td class=\"weekdays\" align=\"center\" valign=\"center\">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\" class=\"empty\">&nbsp;<\/td>';
			} else {
				if (checkevents(daycounter,monthNum,yearNum,i,x) || ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum))){
					if ((todaysDay == x) && (todaysDate == daycounter) && (todaysMonth == monthNum)) {
						
						//shows current date
						calendarString += '<td align=\"center\" class=\"date\"><a href=\"javascript:showevents(' + daycounter + ',' + monthNum + ',' + yearNum + ',' + i + ',' + x + ')\" onMouseOver=\"javascript:quickshow(' + daycounter + ',' + monthNum + ',' + yearNum + ',' + i + ',' + x + ')\" onMouseOut=\"javascript:hideMouseOver()\" class=\"date\">' + daycounter + '<\/a><\/td>';
					}
 					else
			{
			//this code does not work as is, or in this place, but can be used if needed later
			/*//changes the event background color based on the conf_type value
			if (events[z][5] != "") {
				if (events[z][5] == "W") {
					eventdate ='style=\"background-color:#06F; font-size:.7em; \"';
				}
					else if (events[z][5] == "C") {
					eventdate ='style=\"background-color:#06F; font-size:.7em; \"';
				}
					else if (events[z][5] == "P") {
					eventdate ='style=\"background-color:#06F; font-size:.7em; \"';
				}
					else if (events[z][5] == "M") {
					eventdate ='style=\"background-color:#06F; font-size:.7em; \"';
				}
					else {
					eventdate ='style=\"background-color:#06F; font-size:.7em; \"';
				}
			}*/
		
		//shows events date
					calendarString += '<td align=\"center\" '+ eventdate +'><a href=\"javascript:showevents(' + daycounter + ',' + monthNum + ',' + yearNum + ',' + i + ',' + x + ')\" onMouseOver=\"javascript:quickshow(' + daycounter + ',' + monthNum + ',' + yearNum + ',' + i + ',' + x + ')\" onMouseOut=\"javascript:hideMouseOver()\" style=\"color:#fff; font-weight:bold;\">' + daycounter + '<\/a><\/td>';
				}
					
				} else {
					calendarString += '<td align=\"center\" class=\"alldays\">' + daycounter + '<\/td>';
				}
			}
		}
		calendarString += '<\/tr>';
	}
//button that brings you back to current month
	calendarString += '<tr><td colspan=\"7\" align=\"center\" class=\"bottom\"><a href=\"javascript:changedate(\'return\')\" class=\"gobacktodate\">Go to Current Month<\/a><\/td><\/tr><\/table>';
	
//The close button that is displayed after you click on date link 
calendarString += '<table id=\"calDate\" class=\"calDate2\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"><tr><td width=\"80\" class=\"caltop\"><a href=\"javascript:hideDiv()\"><img src=\"\/calendar2\/images\/close2.png\" border=\"0\" class=\"cntrl\" width=\"20\" align=\"right\" style=\"margin:20px 45px 0px 0px;\" \/><\/a><\/td><\/tr><tr>';
    
calendarString += '<td class=\"calmiddle\"><form id=\"eventform\" name=\"eventform\" action=\"#\" method=\"get\"><div id=\"displaybox\" class=\"displaybox\" style=\"width:300px;\"><p>Empty</p><p>&nbsp;<\/p><\/div><\/form><\/td><\/tr><tr><td><img src=\"\/calendar2\/images\/calbottom.png\" width=\"400\" \/><\/td><\/tr><\/table>';
	
//displays summary on mouseover of date link
calendarString += '<table id=\"mouseover\" class=\"mouseover2\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"><tr><td class=\"poptop\"></td><tr><td class=\"popmiddle\"><form id=\"mouseover\" name=\"mouseover\" action=\"#\" method=\"get\" style=\"margin:0px 0px 5px 30px; width:240px;\"><div id=\"mouseoverlist\" class=\"mouseoverTextareaDisplay\">sdfgsdfg<\/div><\/form><\/td><\/tr><tr><td class=\"popbottom\"><\/td><\/tr><\/table>';

//iframe to update the events.js file
//calendarString += '<iframe src =\"calEvents.taf\" width=\"0\" frameborder=\"0\" height=\"0\" style=\"visibility:hidden\"><\/iframe>'; //may run too often

	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] == "D") {
			if ((events[i][1] == "") && (events[i][2] == "") && (events[i][3] == "")) 
			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++;
		}
	}

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

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

document.getElementById("calDate").style.display="block";

	for (var i = 0; i < events.length; i++) {
		// process recurring events if any:
		if (events[i][0] != "") {
			if (events[i][0] == "D") {
				if ((events[i][1] == "") && (events[i][2] == "") && (events[i][3] == "")) {
					var txt=document.getElementById("displaybox");
					theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
				theevent += events[i][6] + '<br \/>' + '<br \/>';
				if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '\n' + '\n';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
				theevent += '<hr />';
				txt.innerHTML=theevent;
				}
			}
			
			if (events[i][0] == "W") {
				if ((events[i][2] == dayofweek)) {
				var txt=document.getElementById("displaybox");
				theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
				theevent += events[i][6] + '<br \/>' + '<br \/>';
				if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
				theevent += '<hr />';
				txt.innerHTML=theevent;
				}
			}
			
			if (events[i][0] == "Y") {
				if ((events[i][2] == day) && (events[i][1] == month)) {
				var txt=document.getElementById("displaybox");
				theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
				theevent += events[i][6] + '<br \/>' + '<br \/>';
				if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
				theevent += '<hr />';
				txt.innerHTML=theevent;
				}
			}
			
			if (events[i][0] == "F") {
				if ((events[i][1] == 3) && (events[i][2] == 0) && (events[i][3] == 0) ) {
					if (easterday == day && eastermonth == month) {
						var txt=document.getElementById("displaybox");
						theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
						theevent += events[i][6] + '<br \/>' + '<br \/>';
						if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
						theevent += '<hr />';
						txt.innerHTML=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)) {
							var txt=document.getElementById("displaybox");
							theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
							theevent += events[i][6] + '<br \/>' + '<br \/>';
							if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
							theevent += '<hr />';
							txt.innerHTML=theevent;
						}
						
						else if ((floater + 7 > 31) && (day == floater)) {
							var txt=document.getElementById("displaybox");
							theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
							theevent += events[i][6] + '<br \/>' + '<br \/>';
							if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
							theevent += '<hr />';
							txt.innerHTML=theevent;
						}
					}
					
					else if ((events[i][1] == month) && (floater == day)) {
						var txt=document.getElementById("displaybox");
						theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
						theevent += events[i][6] + '<br \/>' + '<br \/>';
						if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
						theevent += '<hr />';
						txt.innerHTML=theevent;
					}
				}
		  }
		}
		
		// 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)) {
			var txt=document.getElementById("displaybox");
			theevent += "Events of: " + month +'/'+ day +'/'+ year + '<br \/>' + '<br \/>';
			theevent += events[i][6] + '<br \/>' + '<br \/>';
			if (events[i][4] != ""){
				theevent += 'Time: ' + events[i][4] + '<br \/>' + '<br \/>';
				}
				if (events[i][8] != ""){
				theevent += 'Blank Field: ' + events[i][8] + '<br \/>' + '<br \/>';
				}
				if (events[i][7] != ""){
				theevent += 'Description: ' + events[i][7] + '<br \/>';
				}
			theevent += '<hr />';
			txt.innerHTML=theevent;
		}
	}
	if (theevent == "") 
	{
	var txt=document.getElementById("displaybox");
	txt.innerHTML= 'No events to show today.'+'<br \/>';
	}
}

//This is for the on mouse over event date to show what events are set in that date
function quickshow(day,month,year,week,dayofweek) {
var theevent = "";
var floater = 0;

document.getElementById("mouseover").style.display="block";

	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][1] == "") && (events[i][2] == "") && (events[i][3] == "")) {
					var txt=document.getElementById("mouseoverlist");
					theevent += "Event For: " + events[i][6] + '<br \/>';
					theevent += '<hr />';
				txt.innerHTML=theevent;
			}
			}
			
			if (events[i][0] == "W") {
				if ((events[i][2] == dayofweek)) {
				var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=theevent;
				}
			}

			if (events[i][0] == "Y") {
				if ((events[i][2] == day) && (events[i][1] == month)) {
				var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=theevent;
				}
			}
			
			if (events[i][0] == "F") {
				if ((events[i][1] == 3) && (events[i][2] == 0) && (events[i][3] == 0) ) {
					if (easterday == day && eastermonth == month) {
				var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=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)) {
				var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=theevent;
							
						} else if ((floater + 7 > 31) && (day == floater)) {
				var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=theevent;
							
						}
					} else if ((events[i][1] == month) && (floater == day)) {
				var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=theevent;
					}
				}
		}
		}
		
		// 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)) {
			var txt=document.getElementById("mouseoverlist");
				theevent += "Event For: " + events[i][6] + '<br \/>';
				theevent += '<hr />';
				txt.innerHTML=theevent;
		}
	}

	if (theevent == "") 
	{
		var txt=document.getElementById("mouseoverlist");
		txt.innerHTML= 'No events to show today.'+'\n';
	}

}

//floating holiday function
function floatingholiday(targetyr,targetmo,cardinaloccurrence,targetday) {

//	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.
//
// 	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;
}