var MONTH_NAMES = new Array('Janeiro','Fevereiro','Março','Abril','Maio','Junho','Julho','Agosto','Setembro','Outubro','Novembro','Dezembro','Jan','Fev','Mar','Abr','Mai','Jun','Jul','Ago','Set','Out','Nov','Dez');
var todayText = "Hoje";

var startDateCal = new CalendarPopup("datecal1div");
startDateCal.setReturnFunction("startDateCalReturnFunction");
startDateCal.setMonthNames('Janeiro','Fevereiro','Março','Abril','Maio','Junho','Julho','Agosto','Setembro','Outubro','Novembro','Dezembro');
startDateCal.setDayHeaders('D','S','T','Q','Q','S','S');
startDateCal.setWeekStartDay(0);

function startDateCalReturnFunction(y, m, d) {
     var date = new Date(y, m-1, d);
     var finalDate = formatDate(date, "dd/MM/yyyy");
     document.forms.form.startDate.value = finalDate;
}
document.write(startDateCal.getStyles());

var endDateCal = new CalendarPopup("datecal1div");
endDateCal.setReturnFunction("endDateCalReturnFunction");
endDateCal.setMonthNames('Janeiro','Fevereiro','Março','Abril','Maio','Junho','Julho','Agosto','Setembro','Outubro','Novembro','Dezembro');
endDateCal.setDayHeaders('D','S','T','Q','Q','S','S');
endDateCal.setWeekStartDay(0);

function endDateCalReturnFunction(y, m, d) {
     var date = new Date(y, m-1, d);
     var finalDate = formatDate(date, "dd/MM/yyyy");
     document.forms.form.endDate.value = finalDate;
}
document.write(endDateCal.getStyles());

// ===================================================================
// Author: Matt Kruse <matt@mattkruse.com>
// WWW: http://www.mattkruse.com/
// ===================================================================

// ------------------------------------------------------------------
// isDate ( date_string, format_string )
//
// Returns true if date string matches format of format string and
// is a valid date. Else returns false.
//
// It is recommended that you trim whitespace around the value before
// passing it to this function, as whitespace is NOT ignored!
// ------------------------------------------------------------------
function isDate(val,format) {
	var date = getDateFromFormat(val,format);
	if (date == 0) { 
		return false; 
	}
	return true;
}

// -------------------------------------------------------------------
// compareDates(date1,date1format,date2,date2format)
//   Compare two date strings to see which is greater.
//   Returns:
//   1 if date1 is greater than date2
//   0 if date2 is greater than date1 of if they are the same
//  -1 if either of the dates is in an invalid format
// -------------------------------------------------------------------
function compareDates(date1,dateformat1,date2,dateformat2) {
	var d1 = getDateFromFormat(date1,dateformat1);
	var d2 = getDateFromFormat(date2,dateformat2);
	if (d1==0 || d2==0) {
		return -1;
	}
	else if (d1 > d2) {
		return 1;
	}
	return 0;
}

// ------------------------------------------------------------------
// formatDate (date_object, format)
//
// Returns a date in the output format specified.
// The format string uses the same abbreviations as in getDateFromFormat()
// ------------------------------------------------------------------
function formatDate(date,format) {
	format = format+"";
	var result = "";
	var i_format = 0;
	var c = "";
	var token = "";
	var y = date.getYear()+"";
	var M = date.getMonth()+1;
	var d = date.getDate();
	var H = date.getHours();
	var m = date.getMinutes();
	var s = date.getSeconds();
	var yyyy,yy,MMMM,MMM,MM,dd,hh,h,mm,ss,ampm,HH,H,KK,K,kk,k;
	// Convert real date parts into formatted versions
	// Year
	if (y.length < 4) {
		y = y-0+1900;
	}
	y = ""+y;
	yyyy = y;
	yy = y.substring(2,4);
	// Month
	if (M < 10) { 
		MM = "0"+M; 
	}else {
		MM = M; 
	}
	MMM = MONTH_NAMES[M+11];
	MMMM = MONTH_NAMES[M-1];
	// Date
	if (d < 10) { 
		dd = "0"+d; 
	}else { 
		dd = d; 
	}
	// Hour
	h=H+1;
	K=H;
	k=H+1;
	if (h > 12) { h-=12; }
	if (h == 0) { h=12; }
	if (h < 10) { hh = "0"+h; }
		else { hh = h; }
	if (H < 10) { HH = "0"+K; }
		else { HH = H; }
	if (K > 11) { K-=12; }
	if (K < 10) { KK = "0"+K; }
		else { KK = K; }
	if (k < 10) { kk = "0"+k; }
		else { kk = k; }
	// AM/PM
	if (H > 11) { ampm="PM"; }
	else { ampm="AM"; }
	// Minute
	if (m < 10) { mm = "0"+m; }
		else { mm = m; }
	// Second
	if (s < 10) { ss = "0"+s; }
		else { ss = s; }
	// Now put them all into an object!
	var value = new Object();
	value["yyyy"] = yyyy;
	value["yy"] = yy;
	value["y"] = y;
	value["MMMM"] = MMMM;
	value["MMM"] = MMM;
	value["MM"] = MM;
	value["M"] = M;
	value["dd"] = dd;
	value["d"] = d;
	value["hh"] = hh;
	value["h"] = h;
	value["HH"] = HH;
	value["H"] = H;
	value["KK"] = KK;
	value["K"] = K;
	value["kk"] = kk;
	value["k"] = k;
	value["mm"] = mm;
	value["m"] = m;
	value["ss"] = ss;
	value["s"] = s;
	value["a"] = ampm;
	while (i_format < format.length) {
		// Get next token from format string
		c = format.charAt(i_format);
		token = "";
		while ((format.charAt(i_format) == c) && (i_format < format.length)) {
			token += format.charAt(i_format);
			i_format++;
		}
		if (value[token] != null) {
			result = result + value[token];
		}
		else {
			result = result + token;
		}
	}
	return result;
}


// ------------------------------------------------------------------
// Utility functions for parsing in getDateFromFormat()
// ------------------------------------------------------------------
function _isInteger(val) {
	var digits = "1234567890";
	for (var i=0; i < val.length; i++) {
		if (digits.indexOf(val.charAt(i)) == -1) { return false; }
	}
	return true;
}
function _getInt(str,i,minlength,maxlength) {
	for (x=maxlength; x>=minlength; x--) {
		var token = str.substring(i,i+x);
		if (token.length < minlength) {
			return null;
		}
		if (_isInteger(token)) {
			return token;
		}
	}
	return null;
}

// ------------------------------------------------------------------
// END Utility Functions
// ------------------------------------------------------------------

// ------------------------------------------------------------------
// getDateFromFormat( date_string , format_string )
//
// This function takes a date string and a format string. It matches
// If the date string matches the format string, it returns the
// getTime() of the date. If it does not match, it returns 0.
//
// This function uses the same format strings as the
// java.text.SimpleDateFormat class, with minor exceptions.
//
// The format string consists of the following abbreviations:
//
// Field        | Full Form          | Short Form
// -------------+--------------------+-----------------------
// Year         | yyyy (4 digits)    | yy (2 digits), y (2 or 4 digits)
// Month        | MMMM (name or abbr.)| MMM (2 digits), M (1 or 2 digits)
// Day of Month | dd (2 digits)      | d (1 or 2 digits)
// Hour (1-12)  | hh (2 digits)      | h (1 or 2 digits)
// Hour (0-23)  | HH (2 digits)      | H (1 or 2 digits)
// Hour (0-11)  | KK (2 digits)      | K (1 or 2 digits)
// Hour (1-24)  | kk (2 digits)      | k (1 or 2 digits)
// Minute       | mm (2 digits)      | m (1 or 2 digits)
// Second       | ss (2 digits)      | s (1 or 2 digits)
// AM/PM        | a                  |
//
// Examples:
//  "MMMM d, y" matches: January 01, 2000
//                      Dec 1, 1900
//                      Nov 20, 00
//  "m/d/yy"   matches: 01/20/00
//                      9/2/00
//  "MMMM dd, yyyy hh:mm:ssa" matches: "January 01, 2000 12:30:45AM"
// ------------------------------------------------------------------
function getDateFromFormat(val,format) {
	val = val+"";
	format = format+"";
	var i_val = 0;
	var i_format = 0;
	var c = "";
	var token = "";
	var token2= "";
	var x,y;
	var now   = new Date();
	var year  = now.getYear();
	var month = now.getMonth()+1;
	var date  = now.getDate();
	var hh    = now.getHours();
	var mm    = now.getMinutes();
	var ss    = now.getSeconds();
	var ampm  = "";

	while (i_format < format.length) {
		// Get next token from format string
		c = format.charAt(i_format);
		token = "";
		while ((format.charAt(i_format) == c) && (i_format < format.length)) {
			token += format.charAt(i_format);
			i_format++;
		}
		// Extract contents of value based on format token
		if (token=="yyyy" || token=="yy" || token=="y") {
			if (token=="yyyy") { x=4;y=4; }// 4-digit year
			if (token=="yy")   { x=2;y=2; }// 2-digit year
			if (token=="y")    { x=2;y=4; }// 2-or-4-digit year
			year = _getInt(val,i_val,x,y);
			if (year == null) { return 0; }
			i_val += year.length;
			if (year.length == 2) {
				if (year > 70) {
					year = 1900+(year-0);
				}
				else {
					year = 2000+(year-0);
				}
			}
		}
		else if (token=="MMMM"){// Month name
			month = 0;
			for (var i=0; i<MONTH_NAMES.length; i++) {
				var month_name = MONTH_NAMES[i];
				if (val.substring(i_val,i_val+month_name.length).toLowerCase() == month_name.toLowerCase()) {
					month = i+1;
					if (month>12) { month -= 12; }
					i_val += month_name.length;
					break;
				}
			}
			if (month == 0) { return 0; }
			if ((month < 1) || (month>12)) { return 0; }
			// TODO: Process Month Name
		}
		else if (token=="MMM" || token=="MM") {
			x=token.length; y=2;
			month = _getInt(val,i_val,x,y);
			if (month == null) { return 0; }
			if ((month < 1) || (month > 12)) { return 0; }
			i_val += month.length;
		}
		else if (token=="dd" || token=="d") {
			x=token.length; y=2;
			date = _getInt(val,i_val,x,y);
			if (date == null) { return 0; }
			if ((date < 1) || (date>31)) { return 0; }
			i_val += date.length;
		}
		else if (token=="hh" || token=="h") {
			x=token.length; y=2;
			hh = _getInt(val,i_val,x,y);
			if (hh == null) { return 0; }
			if ((hh < 1) || (hh > 12)) { return 0; }
			i_val += hh.length;
			hh--;
		}
		else if (token=="HH" || token=="H") {
			x=token.length; y=2;
			hh = _getInt(val,i_val,x,y);
			if (hh == null) { return 0; }
			if ((hh < 0) || (hh > 23)) { return 0; }
			i_val += hh.length;
		}
		else if (token=="KK" || token=="K") {
			x=token.length; y=2;
			hh = _getInt(val,i_val,x,y);
			if (hh == null) { return 0; }
			if ((hh < 0) || (hh > 11)) { return 0; }
			i_val += hh.length;
		}
		else if (token=="kk" || token=="k") {
			x=token.length; y=2;
			hh = _getInt(val,i_val,x,y);
			if (hh == null) { return 0; }
			if ((hh < 1) || (hh > 24)) { return 0; }
			i_val += hh.length;
			h--;
		}
		else if (token=="mm" || token=="m") {
			x=token.length; y=2;
			mm = _getInt(val,i_val,x,y);
			if (mm == null) { return 0; }
			if ((mm < 0) || (mm > 59)) { return 0; }
			i_val += mm.length;
		}
		else if (token=="ss" || token=="s") {
			x=token.length; y=2;
			ss = _getInt(val,i_val,x,y);
			if (ss == null) { return 0; }
			if ((ss < 0) || (ss > 59)) { return 0; }
			i_val += ss.length;
		}
		else if (token=="a") {
			if (val.substring(i_val,i_val+2).toLowerCase() == "am") {
				ampm = "AM";
			}
			else if (val.substring(i_val,i_val+2).toLowerCase() == "pm") {
				ampm = "PM";
			}
			else {
				return 0;
			}
		}
		else {
			if (val.substring(i_val,i_val+token.length) != token) {
				return 0;
			}
			else {
				i_val += token.length;
			}
		}
	}
	// If there are any trailing characters left in the value, it doesn't match
	if (i_val != val.length) {
		return 0;
	}
	// Is date valid for month?
	if (month == 2) {
		// Check for leap year
		if ( ( (year%4 == 0)&&(year%100 != 0) ) || (year%400 == 0) ) { // leap year
			if (date > 29){ return false; }
		}
		else {
			if (date > 28) { return false; }
		}
	}
	if ((month==4)||(month==6)||(month==9)||(month==11)) {
		if (date > 30) { return false; }
	}
	// Correct hours value
	if (hh<12 && ampm=="PM") {
		hh+=12;
	}
	else if (hh>11 && ampm=="AM") {
		hh-=12;
	}
	var newdate = new Date(year,month-1,date,hh,mm,ss);
	return newdate.getTime();
}


/*

DESCRIPTION: These functions find the position of an <A> tag in a document,
so other elements can be positioned relative to it.

COMPATABILITY: Works with Netscape 4.x, 6.x, IE 5.x on Windows. Some small
positioning errors - usually with Window positioning - occur on the
Macintosh platform.

FUNCTIONS:
getAnchorPosition(anchorname)
  Returns an Object() having .x and .y properties of the pixel coordinates
  of the upper-left corner of the anchor. Position is relative to the PAGE.

getAnchorWindowPosition(anchorname)
  Returns an Object() having .x and .y properties of the pixel coordinates
  of the upper-left corner of the anchor, relative to the WHOLE SCREEN.

NOTES:

1) For popping up separate browser windows, use getAnchorWindowPosition.
   Otherwise, use getAnchorPosition

2) Your anchor tag MUST contain both NAME and ID attributes which are the
   same. For example:
   <A NAME="test" ID="test"> </A>

3) There must be at least a space between <A> </A> for IE5.5 to see the
   anchor tag correctly. Do not do <A></A> with no space.
*/

//   This function returns an object having .x and .y properties which are the coordinates
//   of the named anchor, relative to the page.

function getAnchorPosition(anchorname){
	var useWindow=false;
	var coordinates=new Object();
	var x=0,y=0;
	var use_gebi=false, use_css=false, use_layers=false;
	if(document.getElementById){
		use_gebi=true;
	}else if(document.all){
		use_css=true;
	}else if(document.layers){
		use_layers=true;
	}

	if(use_gebi && document.all){
		x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
		y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
	}else if(use_gebi){
		var o=document.getElementById(anchorname);
		x=AnchorPosition_getPageOffsetLeft(o);
		y=AnchorPosition_getPageOffsetTop(o);
	}else if(use_css){
		x=AnchorPosition_getPageOffsetLeft(document.all[anchorname]);
		y=AnchorPosition_getPageOffsetTop(document.all[anchorname]);
	}else if(use_layers){
		var found=0;
		for(var i=0;i<document.anchors.length;i++){
			if(document.anchors[i].name==anchorname){
				found=1;break;
			}
		}
		if(found==0){
			coordinates.x=0;
			coordinates.y=0;
			return coordinates;
		}
		x=document.anchors[i].x;
		y=document.anchors[i].y;
	}else{
		coordinates.x=0;
		coordinates.y=0;
		return coordinates;
	}
	coordinates.x=x;
	coordinates.y=y;
	return coordinates;
}

function getAnchorWindowPosition(anchorname){
	var coordinates=getAnchorPosition(anchorname);
	var x=0;
	var y=0;
	if(document.getElementById){
		if(isNaN(window.screenX)){
			x=coordinates.x-document.body.scrollLeft+window.screenLeft;
			y=coordinates.y-document.body.scrollTop+window.screenTop;
		}else{
			x=coordinates.x+window.screenX+(window.outerWidth-window.innerWidth)-window.pageXOffset;
			y=coordinates.y+window.screenY+(window.outerHeight-24-window.innerHeight)-window.pageYOffset;
		}
	}else if(document.all){
		x=coordinates.x-document.body.scrollLeft+window.screenLeft;
		y=coordinates.y-document.body.scrollTop+window.screenTop;
	}else if(document.layers){
		x=coordinates.x+window.screenX+(window.outerWidth-window.innerWidth)-window.pageXOffset;
		y=coordinates.y+window.screenY+(window.outerHeight-24-window.innerHeight)-window.pageYOffset;
	}
	coordinates.x=x;
	coordinates.y=y;
	return coordinates;
}

// Functions for IE to get position of an object
function AnchorPosition_getPageOffsetLeft(el){
	var ol=el.offsetLeft;
	while((el=el.offsetParent) != null){
		ol += el.offsetLeft;
	}
	return ol;
}

function AnchorPosition_getWindowOffsetLeft(el){
	return AnchorPosition_getPageOffsetLeft(el)-document.body.scrollLeft;
}

function AnchorPosition_getPageOffsetTop(el){
	var ot=el.offsetTop;
	while((el=el.offsetParent) != null){
		ot += el.offsetTop;
	}
	return ot;
}

function AnchorPosition_getWindowOffsetTop(el){
	return AnchorPosition_getPageOffsetTop(el)-document.body.scrollTop;
}

/*
DESCRIPTION: This object allows you to easily and quickly popup a window
in a certain place. The window can either be a DIV or a separate browser
window.

COMPATABILITY: Works with Netscape 4.x, 6.x, IE 5.x on Windows. Some small
positioning errors - usually with Window positioning - occur on the
Macintosh platform. Due to bugs in Netscape 4.x, populating the popup
window with <STYLE> tags may cause errors.

USAGE:
// Create an object for a WINDOW popup
var win = new PopupWindow();

// Create an object for a DIV window using the DIV named 'mydiv'
var win = new PopupWindow('mydiv');

// Set the window to automatically hide itself when the user clicks
// anywhere else on the page except the popup
win.autoHide();

// Show the window relative to the anchor name passed in
win.showPopup(anchorname);

// Hide the popup
win.hidePopup();

// Set the size of the popup window (only applies to WINDOW popups
win.setSize(width,height);

// Populate the contents of the popup window that will be shown. If you
// change the contents while it is displayed, you will need to refresh()
win.populate(string);

// Refresh the contents of the popup
win.refresh();

// Specify how many pixels to the right of the anchor the popup will appear
win.offsetX = 50;

// Specify how many pixels below the anchor the popup will appear
win.offsetY = 100;

NOTES:
1) Requires the functions in AnchorPosition.js

2) Your anchor tag MUST contain both NAME and ID attributes which are the
   same. For example:
   <A NAME="test" ID="test"> </A>

3) There must be at least a space between <A> </A> for IE5.5 to see the
   anchor tag correctly. Do not do <A></A> with no space.

4) When a PopupWindow object is created, a handler for 'onmouseup' is
   attached to any event handler you may have already defined. Do NOT define
   an event handler for 'onmouseup' after you define a PopupWindow object or
   the autoHide() will not work correctly.
*/

// Set the position of the popup window based on the anchor
function PopupWindow_getXYPosition(anchorname){
	var coordinates;
	if(this.type == "WINDOW"){
		coordinates = getAnchorWindowPosition(anchorname);
	}else{
		coordinates = getAnchorPosition(anchorname);
	}
	this.x = coordinates.x;
	this.y = coordinates.y;
}

// Set width/height of DIV/popup window
function PopupWindow_setSize(width,height){
	this.width = width;
	this.height = height;
}

// Fill the window with contents
function PopupWindow_populate(contents){
	this.contents = contents;
	this.populated = false;
}

function PopupWindow_setUrl(url){
	this.url = url;
}

function PopupWindow_setWindowProperties(props){
	this.windowProperties = props;
}

// Refresh the displayed contents of the popup
function PopupWindow_refresh(){
	if(this.divName != null){
		if(this.use_gebi){
			document.getElementById(this.divName).innerHTML = this.contents;
		}else if(this.use_css){
			document.all[this.divName].innerHTML = this.contents;
		}else if(this.use_layers){
			var d = document.layers[this.divName];
			d.document.open();
			d.document.writeln(this.contents);
			d.document.close();
		}
	}else{
		if(this.popupWindow != null && !this.popupWindow.closed){
			if(this.url!=""){
				this.popupWindow.location.href=this.url;
			}else{
				this.popupWindow.document.open();
				this.popupWindow.document.writeln(this.contents);
				this.popupWindow.document.close();
			}
			this.popupWindow.focus();
		}
	}
}

// Position and show the popup, relative to an anchor object
function PopupWindow_showPopup(anchorname){
	this.getXYPosition(anchorname);
	this.x += this.offsetX;
	this.y += this.offsetY;
	if(!this.populated &&(this.contents != "")){
		this.populated = true;
		this.refresh();
	}
	if(this.divName != null){
		if(this.use_gebi){
			document.getElementById(this.divName).style.left = this.x + "px";
			document.getElementById(this.divName).style.top = this.y + "px";
			document.getElementById(this.divName).style.visibility = "visible";
		}
		else if(this.use_css){
			document.all[this.divName].style.left = this.x;
			document.all[this.divName].style.top = this.y;
			document.all[this.divName].style.visibility = "visible";
		}else if(this.use_layers){
			document.layers[this.divName].left = this.x;
			document.layers[this.divName].top = this.y;
			document.layers[this.divName].visibility = "visible";
		}
	}else{
		if(this.popupWindow == null || this.popupWindow.closed){
			if(this.x<0){
				this.x=0;
			}
			if(this.y<0){
				this.y=0;
			}
			if(screen && screen.availHeight){
				if((this.y + this.height) > screen.availHeight){
					this.y = screen.availHeight - this.height;
				}
			}
			if(screen && screen.availWidth){
				if((this.x + this.width) > screen.availWidth){
					this.x = screen.availWidth - this.width;
				}
			}
			var avoidAboutBlank = window.opera ||( document.layers && !navigator.mimeTypes['*']) || navigator.vendor == 'KDE' ||( document.childNodes && !document.all && !navigator.taintEnabled);
			this.popupWindow = window.open(avoidAboutBlank?"":"about:blank","window_"+anchorname,this.windowProperties+",width="+this.width+",height="+this.height+",screenX="+this.x+",left="+this.x+",screenY="+this.y+",top="+this.y+"");
		}
		this.refresh();
	}
}

function PopupWindow_hidePopup(){
	if(this.divName != null){
		if(this.use_gebi){
			document.getElementById(this.divName).style.visibility = "hidden";
		}else if(this.use_css){
			document.all[this.divName].style.visibility = "hidden";
		}else if(this.use_layers){
			document.layers[this.divName].visibility = "hidden";
		}
	}else{
		if(this.popupWindow && !this.popupWindow.closed){
			this.popupWindow.close();
			this.popupWindow = null;
		}
	}
}

// Pass an event and return whether or not it was the popup DIV that was clicked
function PopupWindow_isClicked(e){
	if(this.divName != null){
		if(this.use_layers){
			var clickX = e.pageX;
			var clickY = e.pageY;
			var t = document.layers[this.divName];
			if((clickX > t.left) &&(clickX < t.left+t.clip.width) &&(clickY > t.top) &&(clickY < t.top+t.clip.height)){
				return true;
			}else{
				return false;
			}
		}else if(document.all){
			var t = window.event.srcElement;
			while(t.parentElement != null){
				if(t.id==this.divName){
					return true;
				}
				t = t.parentElement;
			}
			return false;
		}else if(this.use_gebi && e){
			var t = e.originalTarget;
			while(t.parentNode != null){
				if(t.id==this.divName){
					return true;
				}
				t = t.parentNode;
			}
			return false;
		}
		return false;
	}
	return false;
}

// Check an onMouseDown event to see if we should hide
function PopupWindow_hideIfNotClicked(e){
	if(this.autoHideEnabled && !this.isClicked(e)){
		this.hidePopup();
	}
}

// Call this to make the DIV disable automatically when mouse is clicked outside it
function PopupWindow_autoHide(){
	this.autoHideEnabled = true;
}

// This global function checks all PopupWindow objects onmouseup to see if they should be hidden
function PopupWindow_hidePopupWindows(e){
	for(var i=0;i<popupWindowObjects.length;i++){
		if(popupWindowObjects[i] != null){
			var p = popupWindowObjects[i];
			p.hideIfNotClicked(e);
		}
	}
}

// Run this immediately to attach the event listener
function PopupWindow_attachListener(){
	if(document.layers){
		document.captureEvents(Event.MOUSEUP);
	}
	window.popupWindowOldEventListener = document.onmouseup;
	if(window.popupWindowOldEventListener != null){
		document.onmouseup = new Function("window.popupWindowOldEventListener();PopupWindow_hidePopupWindows();");
	}else{
		document.onmouseup = PopupWindow_hidePopupWindows;
	}
}

// CONSTRUCTOR for the PopupWindow object
// Pass it a DIV name to use a DHTML popup, otherwise will default to window popup
function PopupWindow(){
	if(!window.popupWindowIndex){
		window.popupWindowIndex = 0;
	}
	if(!window.popupWindowObjects){
		window.popupWindowObjects = new Array();
	}
	if(!window.listenerAttached){
		window.listenerAttached = true;
		PopupWindow_attachListener();
	}
	this.index = popupWindowIndex++;
	popupWindowObjects[this.index] = this;
	this.divName = null;
	this.popupWindow = null;
	this.width=0;
	this.height=0;
	this.populated = false;
	this.visible = false;
	this.autoHideEnabled = false;
	this.contents = "";
	this.url="";
	this.windowProperties="toolbar=no,location=no,status=no,menubar=no,scrollbars=auto,resizable,alwaysRaised,dependent,titlebar=no";
	if(arguments.length>0){
		this.type="DIV";
		this.divName = arguments[0];
	}else{
		this.type="WINDOW";
	}
	this.use_gebi = false;
	this.use_css = false;
	this.use_layers = false;
	if(document.getElementById){
		this.use_gebi = true;
	}else if(document.all){
		this.use_css = true;
	}else if(document.layers){
		this.use_layers = true;
	}else{
		this.type = "WINDOW";
	}
	this.offsetX = 0;
	this.offsetY = 0;
	this.getXYPosition = PopupWindow_getXYPosition;
	this.populate = PopupWindow_populate;
	this.setUrl = PopupWindow_setUrl;
	this.setWindowProperties = PopupWindow_setWindowProperties;
	this.refresh = PopupWindow_refresh;
	this.showPopup = PopupWindow_showPopup;
	this.hidePopup = PopupWindow_hidePopup;
	this.setSize = PopupWindow_setSize;
	this.isClicked = PopupWindow_isClicked;
	this.autoHide = PopupWindow_autoHide;
	this.hideIfNotClicked = PopupWindow_hideIfNotClicked;
}

/*

DESCRIPTION: This object implements a popup calendar to allow the user to
select a date.

COMPATABILITY: Works with Netscape 4.x, 6.x, IE 5.x on Windows. Some small
positioning errors - usually with Window positioning - occur on the
Macintosh platform.
The calendar can be modified to work for any location in the world by
changing which weekday is displayed as the first column, changing the month
names, and changing the column headers for each day.

USAGE:
// Create a new CalendarPopup object of type WINDOW
var cal = new CalendarPopup();

// Create a new CalendarPopup object of type DIV using the DIV named 'mydiv'
var cal = new CalendarPopup('mydiv');

// Set the name of the function to be called when the user clicks on a date.
// This function should accept year,month,date as arguments. It is then the
// responsibility of the function to populate a text box with the date or
// do whetever else is necessary
cal.setReturnFunction(functionname);

// Show the calendar relative to a given anchor
cal.showCalendar(anchorname);

// Hide the calendar. The calendar is set to autoHide automatically
cal.hideCalendar();

// Set the month names to be used. Default are English month names
cal.setMonthNames("Jan","Feb","Mar",...);

// Set the text to be used above each day column. The days start with
// sunday regardless of the value of WeekStartDay
cal.setDayHeaders("S","M","T",...);

// Set the day for the first column in the calendar grid. By default this
// is Sunday (0) but it may be changed to fit the conventions of other
// countries.
cal.setWeekStartDay(1); // week is Monday - Saturday

// Set the calendar offset to be different than the default. By default it
// will appear just below and to the right of the anchorname. So if you have
// a text box where the date will go and and anchor immediately after the
// text box, the calendar will display immediately under the text box.
cal.offsetX = 20;
cal.offsetY = 20;

NOTES:
1) Requires the functions in AnchorPosition.js and PopupWindow.js

2) Your anchor tag MUST contain both NAME and ID attributes which are the
   same. For example:
   <A NAME="test" ID="test"> </A>

3) There must be at least a space between <A> </A> for IE5.5 to see the
   anchor tag correctly. Do not do <A></A> with no space.

4) When a CalendarPopup object is created, a handler for 'onmouseup' is
   attached to any event handler you may have already defined. Do NOT define
   an event handler for 'onmouseup' after you define a CalendarPopup object
   or the autoHide() will not work correctly.

5) The calendar display uses "graypixel.gif" which is a 1x1 gray pixel of
   color #C0C0C0. If this file is not present, the calendar display should
   still be fine but will not show the gray lines.

6) The calendar popup display uses style sheets to make it look nice.

*/

// CONSTRUCTOR for the CalendarPopup Object
function CalendarPopup() {
	var newCalendar;
	newCalendar = new PopupWindow();
	newCalendar.setSize(150,150);
	newCalendar.offsetX = -152;
	newCalendar.offsetY = 25;
	newCalendar.autoHide();
	// Calendar-specific properties
	newCalendar.monthNames = new Array("January","February","March","April","May","June","July","August","September","October","November","December");
	newCalendar.dayHeaders = new Array("S","M","T","W","T","F","S");
	newCalendar.returnFunction = "tmpReturnFunction";
	newCalendar.weekStartDay = 0;
	newCalendar.isShowYearNavigation = true;
	// Method mappings
	newCalendar.setReturnFunction = CalendarPopup_setReturnFunction;
	newCalendar.setMonthNames = CalendarPopup_setMonthNames;
	newCalendar.setDayHeaders = CalendarPopup_setDayHeaders;
	newCalendar.setWeekStartDay = CalendarPopup_setWeekStartDay;
	newCalendar.showYearNavigation = CalendarPopup_showYearNavigation;
	newCalendar.showCalendar = CalendarPopup_showCalendar;
	newCalendar.hideCalendar = CalendarPopup_hideCalendar;
	newCalendar.getStyles = CalendarPopup_getStyles;
	newCalendar.refreshCalendar = CalendarPopup_refreshCalendar;
	newCalendar.getCalendar = CalendarPopup_getCalendar;
	// Return the object
	return newCalendar;
}

// Temporary default function to be called when a date is clicked, so no error is thrown
function CalendarPopup_tmpReturnFunction(y,m,d) {
	alert('Use setReturnFunction() to define which function will get the clicked results!');
}

// Set the name of the function to call to get the clicked date
function CalendarPopup_setReturnFunction(name) {
	this.returnFunction = name;
}

// Over-ride the built-in month names
function CalendarPopup_setMonthNames() {
	for (var i=0; i<arguments.length; i++) {
		this.monthNames[i] = arguments[i];
	}
}

// Over-ride the built-in column headers for each day
function CalendarPopup_setDayHeaders() {
	for (var i=0; i<arguments.length; i++) {
		this.dayHeaders[i] = arguments[i];
	}
}

// Set the day of the week (0-7) that the calendar display starts on
// This is for countries other than the US whose calendar displays start on Monday(1), for example
function CalendarPopup_setWeekStartDay(day) {
	this.weekStartDay = day;
}

// Show next/last year navigation links
function CalendarPopup_showYearNavigation() {
	this.isShowYearNavigation = true;
}

// Hide a calendar object
function CalendarPopup_hideCalendar() {
	if (arguments.length > 0) {
		window.popupWindowObjects[arguments[0]].hidePopup();
	}
	else {
		this.hidePopup();
	}
}

// Refresh the contents of the calendar display
function CalendarPopup_refreshCalendar(index) {
	var calObject = window.popupWindowObjects[index];
	if (arguments.length>1) {
		calObject.populate(calObject.getCalendar(arguments[1],arguments[2]));
	}
	else {
		calObject.populate(calObject.getCalendar());
	}
	calObject.refresh();
}

// Populate the calendar and display it
function CalendarPopup_showCalendar(anchorname) {
	this.populate(this.getCalendar());
	this.showPopup(anchorname);
}

// Get style block needed to display the calendar correctly
function CalendarPopup_getStyles() {
	var result = "";
	result += "<STYLE>\n";
	result += "TD.cal { font-family:arial; font-size: 8pt; }\n";
	result += "TD.calmonth { font-family:arial; font-size: 8pt; text-align: right;}\n";
	result += "TD.caltoday { font-family:arial; font-size: 8pt; text-align: right; color: white; background-color:#C0C0C0; border-width:1; border-type:solid; border-color:#800000; }\n";
	result += "A.todaylink { font-family:arial; font-size: 8pt; height: 20px; color: black; }\n";
	result += "A.cal { text-decoration:none; color:#000000; }\n";
	result += "A.calthismonth { text-decoration:none; color:#000000; }\n";
	result += "A.calothermonth { text-decoration:none; color:#808080; }\n";
	result += "</STYLE>\n";
	return result;
}

// Return a string c5ontaining all the calendar code to be displayed
function CalendarPopup_getCalendar() {
	var now = new Date();
	if (arguments.length > 0) { var month = arguments[0]; }
		else { var month = now.getMonth()+1; }
	if (arguments.length > 1) { var year = arguments[1]; }
		else { var year = now.getFullYear(); }
	var daysinmonth= new Array(0,31,28,31,30,31,30,31,31,30,31,30,31);
	if ( ( (year%4 == 0)&&(year%100 != 0) ) || (year%400 == 0) ) { // leap year
		daysinmonth[2] = 29;
	}
	var current_month = new Date(year,month-1,1);
	var display_year = year;
	var display_month = month;
	var display_date = 1;
	var weekday= current_month.getDay();
	var offset = 0;
	if (weekday >= this.weekStartDay) {
		offset = weekday - this.weekStartDay;
	}
	else {
		offset = 7-this.weekStartDay+weekday;
	}
	if (offset > 0) {
		display_month--;
		if (display_month < 1) { display_month = 12; display_year--; }
		display_date = daysinmonth[display_month]-offset+1;
	}
	var next_month = month+1;
	var next_month_year = year;
	if (next_month > 12) { next_month=1; next_month_year++; }
	var last_month = month-1;
	var last_month_year = year;
	if (last_month < 1) { last_month=12; last_month_year--; }
	var date_class;
	var result = "";
	if (this.type == "WINDOW") {
		var windowref = "window.opener.";
	}
	else {
		var windowref = "";
	}
	// If POPUP, write entire HTML document
	if (this.type == "WINDOW") {
		result += "<HTML><HEAD><TITLE>Calendar</TITLE>"+this.getStyles()+"</HEAD><BODY MARGINWIDTH=0 MARGINHEIGHT=0 TOPMARGIN=0 RIGHTMARGIN=0 LEFTMARGIN=0>\n";
		result += '<CENTER><TABLE WIDTH=100% BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>\n';
	}
	else {
		result += '<TABLE WIDTH=144 BORDER=1 BORDERWIDTH=1 BORDERCOLOR="#808080" CELLSPACING=0 CELLPADDING=1>\n';
		result += '<TR><TD ALIGN=CENTER>\n';
		result += '<CENTER>\n';
		result += '<TABLE WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>\n';
	}
	result += '<TR BGCOLOR="#C0C0C0">\n';
	if (this.isShowYearNavigation) {
		result += '<TD BGCOLOR="#C0C0C0" CLASS="cal" WIDTH=144 ALIGN=CENTER VALIGN=MIDDLE>';
		result += '<B><A CLASS="cal" HREF="javascript:'+windowref+'CalendarPopup_refreshCalendar('+this.index+','+last_month+','+last_month_year+');">&lt;</A></B>&nbsp;&nbsp;'+this.monthNames[month-1]+'&nbsp;&nbsp;<B><A CLASS="cal" HREF="javascript:'+windowref+'CalendarPopup_refreshCalendar('+this.index+','+next_month+','+next_month_year+');">&gt;</A></B>\n';
		result += '&nbsp;&nbsp;&nbsp;&nbsp;';
		result += '<B><A CLASS="cal" HREF="javascript:'+windowref+'CalendarPopup_refreshCalendar('+this.index+','+month+','+(year-1)+');">&lt;</A></B>&nbsp;&nbsp;'+year+'&nbsp;&nbsp;<B><A CLASS="cal" HREF="javascript:'+windowref+'CalendarPopup_refreshCalendar('+this.index+','+month+','+(year+1)+');">&gt;</A></B>\n';
		result += '</TD>\n';
	}
	else {
		result += '	<TD BGCOLOR="#C0C0C0" CLASS="cal" WIDTH=22 ALIGN=CENTER VALIGN=MIDDLE><B><A CLASS="cal" HREF="javascript:'+windowref+'CalendarPopup_refreshCalendar('+this.index+','+last_month+','+last_month_year+');">&lt;&lt;</A></B></TD>\n';
		result += '	<TD BGCOLOR="#C0C0C0" CLASS="cal" WIDTH=100 ALIGN=CENTER>'+this.monthNames[month-1]+' '+year+'</TD>\n';
		result += '	<TD BGCOLOR="#C0C0C0" CLASS="cal" WIDTH=22 ALIGN=CENTER VALIGN=MIDDLE><B><A CLASS="cal" HREF="javascript:'+windowref+'CalendarPopup_refreshCalendar('+this.index+','+next_month+','+next_month_year+');">&gt;&gt;</A></B></TD>\n';
	}
	result += '</TR></TABLE>\n';
	result += '<TABLE WIDTH=120 BORDER=0 CELLSPACING=1 CELLPADDING=0 ALIGN=CENTER>\n';
	result += '<TR>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay)%7]+'</TD>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay+1)%7]+'</TD>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay+2)%7]+'</TD>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay+3)%7]+'</TD>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay+4)%7]+'</TD>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay+5)%7]+'</TD>\n';
	result += '	<TD CLASS="cal" ALIGN=RIGHT WIDTH=14%>'+this.dayHeaders[(this.weekStartDay+6)%7]+'</TD>\n';
	result += '</TR>\n';
	result += '<TR><TD COLSPAN=7 ALIGN=CENTER></TD></TR>\n';
	for (var row=1; row<=6; row++) {
		result += '<TR>\n';
		for (var col=1; col<=7; col++) {
			if (display_month == month) {
				date_class = "calthismonth";
			}
			else {
				date_class = "calothermonth";
			}
			if ((display_month == now.getMonth()+1) && (display_date==now.getDate()) && (display_year==now.getFullYear())) {
				td_class="caltoday";
			}
			else {
				td_class="calmonth";
			}
                        result += '	<TD CLASS="'+td_class+'"><A HREF="javascript:'+windowref+this.returnFunction+'('+display_year+','+display_month+','+display_date+');'+windowref+'CalendarPopup_hideCalendar(\''+this.index+'\');" CLASS="'+date_class+'">'+display_date+'</A></TD>\n';
			display_date++;
			if (display_date > daysinmonth[display_month]) {
				display_date=1;
				display_month++;
			}
			if (display_month > 12) {
				display_month=1;
				display_year++;
			}
		}
		result += '</TR>';
	}
	result += '<TR><TD COLSPAN=7 ALIGN=CENTER></TD></TR>\n';
	result += '<TR>\n';
	result += '	<TD COLSPAN=7 ALIGN=CENTER>\n';
	result += '		<A CLASS="todaylink" HREF="javascript:'+windowref+this.returnFunction+'(\''+now.getFullYear()+'\',\''+(now.getMonth()+1)+'\',\''+now.getDate()+'\');'+windowref+'CalendarPopup_hideCalendar(\''+this.index+'\');">' + todayText + '</A>\n';
	result += '		<BR>\n';
	result += '	</TD></TR></TABLE></CENTER></TD></TR></TABLE>\n';
	if (this.type == "WINDOW") {
		result += "</BODY></HTML>\n";
	}
	return result;
}