calendarpopup.js

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	}

// How many years back to start by default for year display
function CP_setYearSelectStartOffset(num) { this.yearSelectStartOffset=num; }

// Set which weekdays should not be clickable
function CP_setDisabledWeekDays() {
	this.disabledWeekDays = new Object();
	for (var i=0; i<arguments.length; i++) { this.disabledWeekDays[arguments[i]] = true; }
	}
	
// Disable individual dates or ranges
// Builds an internal logical test which is run via eval() for efficiency
function CP_addDisabledDates(start, end) {
	if (arguments.length==1) { end=start; }
	if (start==null && end==null) { return; }
	if (this.disabledDatesExpression!="") { this.disabledDatesExpression+= "||"; }
	if (start!=null) { start = parseDate(start); start=""+start.getFullYear()+LZ(start.getMonth()+1)+LZ(start.getDate());}
	if (end!=null) { end=parseDate(end); end=""+end.getFullYear()+LZ(end.getMonth()+1)+LZ(end.getDate());}
	if (start==null) { this.disabledDatesExpression+="(ds<="+end+")"; }
	else if (end  ==null) { this.disabledDatesExpression+="(ds>="+start+")"; }
	else { this.disabledDatesExpression+="(ds>="+start+"&&ds<="+end+")"; }
	}
	
// Set the text to use for the "Today" link
function CP_setTodayText(text) {
	this.todayText = text;
	}

// Set the prefix to be added to all CSS classes when writing output
function CP_setCssPrefix(val) { 
	this.cssPrefix = val; 
	}

// Show the navigation as an dropdowns that can be manually changed
function CP_showNavigationDropdowns() { this.isShowNavigationDropdowns = (arguments.length>0)?arguments[0]:true; }

// Show the year navigation as an input box that can be manually changed
function CP_showYearNavigationInput() { this.isShowYearNavigationInput = (arguments.length>0)?arguments[0]:true; }

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

// Refresh the contents of the calendar display
function CP_refreshCalendar(index) {
	var calObject = window.popupWindowObjects[index];
	if (arguments.length>1) { 
		calObject.populate(calObject.getCalendar(arguments[1],arguments[2],arguments[3],arguments[4],arguments[5]));
		}
	else {
		calObject.populate(calObject.getCalendar());
		}
	calObject.refresh();
	}

// Populate the calendar and display it
function CP_showCalendar(anchorname) {
	if (arguments.length>1) {
		if (arguments[1]==null||arguments[1]=="") {
			this.currentDate=new Date();
			}
		else {
			this.currentDate=new Date(parseDate(arguments[1]));
			}
		}
	this.populate(this.getCalendar());
	this.showPopup(anchorname);
	}

// Simple method to interface popup calendar with a text-entry box
function CP_select(inputobj, linkname, format) {
	var selectedDate=(arguments.length>3)?arguments[3]:null;
	if (!window.getDateFromFormat) {
		alert("calendar.select: To use this method you must also include 'date.js' for date formatting");
		return;
		}
	if (this.displayType!="date"&&this.displayType!="week-end") {
		alert("calendar.select: This function can only be used with displayType 'date' or 'week-end'");
		return;
		}
	if (inputobj.type!="text" && inputobj.type!="hidden" && inputobj.type!="textarea") { 
		alert("calendar.select: Input object passed is not a valid form input object"); 
		window.CP_targetInput=null;
		return;
		}
	if (inputobj.disabled) { return; } // Can't use calendar input on disabled form input!
	window.CP_targetInput = inputobj;
	window.CP_calendarObject = this;
	this.currentDate=null;
	var time=0;
	if (selectedDate!=null) {
		time = getDateFromFormat(selectedDate,format)
		}
	else if (inputobj.value!="") {
		time = getDateFromFormat(inputobj.value,format);
		}
	if (selectedDate!=null || inputobj.value!="") {
		if (time==0) { this.currentDate=null; }
		else { this.currentDate=new Date(time); }
		}
	window.CP_dateFormat = format;
	this.showCalendar(linkname);
	}
	
// Get style block needed to display the calendar correctly
function getCalendarStyles() {
	var result = "";
	var p = "";
	if (this!=null && typeof(this.cssPrefix)!="undefined" && this.cssPrefix!=null && this.cssPrefix!="") { p=this.cssPrefix; }
	result += "<STYLE>\n";
	result += "."+p+"cpYearNavigation,."+p+"cpMonthNavigation { background-color:#cdc0b0; text-align:center; vertical-align:center; text-decoration:none; color:#000000; font-family:Tahoma; border-width:0px 0px 1px 0px; border-style:solid; border-color: #748771; }\n";
	result += "."+p+"cpDayColumnHeader, ."+p+"cpYearNavigation,."+p+"cpMonthNavigation,."+p+"cpCurrentMonthDate,."+p+"cpCurrentMonthDateDisabled,."+p+"cpOtherMonthDate,."+p+"cpOtherMonthDateDisabled,."+p+"cpCurrentDate,."+p+"cpCurrentDateDisabled,."+p+"cpTodayText,."+p+"cpTodayTextDisabled,."+p+"cpText { font-family:Tahoma; font-size:11px; }\n";
	result += "TD."+p+"cpDayColumnHeader { text-align:right; border:solid thin #C0C0C0;border-width:0px 0px 1px 0px; }\n";
	result += "."+p+"cpCurrentMonthDate, ."+p+"cpOtherMonthDate, ."+p+"cpCurrentDate  { text-align:right; text-decoration:none; }\n";
	result += "."+p+"cpCurrentMonthDateDisabled, ."+p+"cpOtherMonthDateDisabled, ."+p+"cpCurrentDateDisabled { color:#D0D0D0; text-align:right; text-decoration:line-through; }\n";
	result += "."+p+"cpCurrentMonthDate, .cpCurrentDate { color:#000000; }\n";
	result += "."+p+"cpOtherMonthDate { color:#808080; }\n";
	result += "TD."+p+"cpCurrentDate { color:white; background-color: #eeeeee; border-width:1px; border:solid thin #748771; }\n";
	result += "TD."+p+"cpCurrentDateDisabled { border-width:1px; border:solid thin #FFAAAA; }\n";
	result += "TD."+p+"cpTodayText, TD."+p+"cpTodayTextDisabled { border:solid thin #C0C0C0; border-width:1px 0px 0px 0px;}\n";
	result += "A."+p+"cpTodayText, SPAN."+p+"cpTodayTextDisabled { height:20px; }\n";
	result += "A."+p+"cpTodayText { color:black; }\n";
	result += "."+p+"cpTodayTextDisabled { color:#D0D0D0; }\n";
	result += "."+p+"cpBorder { border:solid thin #748771;border-width:1px 1px 1px 1px; }\n";
	result += "</STYLE>\n";
	return result;
	}

// Return a string containing all the calendar code to be displayed
function CP_getCalendar() {
	var now = new Date();
	// Reference to window
	if (this.type == "WINDOW") { var windowref = "window.opener."; }
	else { var windowref = ""; }
	var result = "";
	// 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 CLASS="'+this.cssPrefix+'cpBorder" WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=1>\n';
		result += '<TR><TD ALIGN=CENTER>\n';
		result += '<CENTER>\n';
		}
	// Code for DATE display (default)
	// -------------------------------
	if (this.displayType=="date" || this.displayType=="week-end") {
		if (this.currentDate==null) { this.currentDate = now; }
		if (arguments.length > 0) { var month = arguments[0]; }
			else { var month = this.currentDate.getMonth()+1; }
		if (arguments.length > 1 && arguments[1]>0 && arguments[1]-0==arguments[1]) { var year = arguments[1]; }
			else { var year = this.currentDate.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) ) {
			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;
		
		offset = (weekday >= this.weekStartDay) ? weekday-this.weekStartDay : 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;
		if (this.type!="WINDOW") {
			result += "<TABLE WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>";
			}
		result += '<TR>\n';
		var refresh = windowref+'CP_refreshCalendar';
		var refreshLink = 'javascript:' + refresh;
		if (this.isShowNavigationDropdowns) {
			result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="78" COLSPAN="3"><select CLASS="'+this.cssPrefix+'cpMonthNavigation" name="cpMonth" onChange="'+refresh+'('+this.index+',this.options[this.selectedIndex].value-0,'+(year-0)+');">';
			for( var monthCounter=1; monthCounter<=12; monthCounter++ ) {
				var selected = (monthCounter==month) ? 'SELECTED' : '';
				result += '<option value="'+monthCounter+'" '+selected+'>'+this.monthNames[monthCounter-1]+'</option>';
				}
			result += '</select></TD>';
			result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="10">&nbsp;</TD>';

			result += '<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="56" COLSPAN="3"><select CLASS="'+this.cssPrefix+'cpYearNavigation" name="cpYear" onChange="'+refresh+'('+this.index+','+month+',this.options[this.selectedIndex].value-0);">';
			for( var yearCounter=year-this.yearSelectStartOffset; yearCounter<=year+this.yearSelectStartOffset; yearCounter++ ) {
				var selected = (yearCounter==year) ? 'SELECTED' : '';
				result += '<option value="'+yearCounter+'" '+selected+'>'+yearCounter+'</option>';
				}
			result += '</select></TD>';
			}
		else {
			if (this.isShowYearNavigation) {
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="10"><A CLASS="'+this.cssPrefix+'cpMonthNavigation" HREF="'+refreshLink+'('+this.index+','+last_month+','+last_month_year+');">&lt;</A></TD>';
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="58"><SPAN CLASS="'+this.cssPrefix+'cpMonthNavigation">'+this.monthNames[month-1]+'</SPAN></TD>';
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="10"><A CLASS="'+this.cssPrefix+'cpMonthNavigation" HREF="'+refreshLink+'('+this.index+','+next_month+','+next_month_year+');">&gt;</A></TD>';
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="10">&nbsp;</TD>';

				result += '<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="10"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="'+refreshLink+'('+this.index+','+month+','+(year-1)+');">&lt;</A></TD>';
				if (this.isShowYearNavigationInput) {
					result += '<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="36"><INPUT NAME="cpYear" CLASS="'+this.cssPrefix+'cpYearNavigation" SIZE="4" MAXLENGTH="4" VALUE="'+year+'" onBlur="'+refresh+'('+this.index+','+month+',this.value-0);"></TD>';
					}
				else {
					result += '<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="36"><SPAN CLASS="'+this.cssPrefix+'cpYearNavigation">'+year+'</SPAN></TD>';
					}
				result += '<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="10"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="'+refreshLink+'('+this.index+','+month+','+(year+1)+');">&gt;</A></TD>';
				}
			else {
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpMonthNavigation" HREF="'+refreshLink+'('+this.index+','+last_month+','+last_month_year+');">&lt;&lt;</A></TD>\n';
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="100"><SPAN CLASS="'+this.cssPrefix+'cpMonthNavigation">'+this.monthNames[month-1]+' '+year+'</SPAN></TD>\n';
				result += '<TD CLASS="'+this.cssPrefix+'cpMonthNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpMonthNavigation" HREF="'+refreshLink+'('+this.index+','+next_month+','+next_month_year+');">&gt;&gt;</A></TD>\n';
				}
			}
		result += '</TR></TABLE>\n';
		result += '<TABLE WIDTH=120 BORDER=0 CELLSPACING=0 CELLPADDING=1 ALIGN=CENTER>\n';
		result += '<TR>\n';
		for (var j=0; j<7; j++) {

			result += '<TD CLASS="'+this.cssPrefix+'cpDayColumnHeader" WIDTH="14%"><SPAN CLASS="'+this.cssPrefix+'cpDayColumnHeader">'+this.dayHeaders[(this.weekStartDay+j)%7]+'</TD>\n';
			}
		result += '</TR>\n';
		for (var row=1; row<=6; row++) {
			result += '<TR>\n';
			for (var col=1; col<=7; col++) {
				var disabled=false;
				if (this.disabledDatesExpression!="") {
					var ds=""+display_year+LZ(display_month)+LZ(display_date);
					eval("disabled=("+this.disabledDatesExpression+")");
					}
				var dateClass = "";
				if ((display_month == this.currentDate.getMonth()+1) && (display_date==this.currentDate.getDate()) && (display_year==this.currentDate.getFullYear())) {
					dateClass = "cpCurrentDate";
					}
				else if (display_month == month) {
					dateClass = "cpCurrentMonthDate";
					}
				else {
					dateClass = "cpOtherMonthDate";
					}
				if (disabled || this.disabledWeekDays[col-1]) {
					result += '	<TD CLASS="'+this.cssPrefix+dateClass+'"><SPAN CLASS="'+this.cssPrefix+dateClass+'Disabled">'+display_date+'</SPAN></TD>\n';
					}
				else {
					var selected_date = display_date;
					var selected_month = display_month;
					var selected_year = display_year;
					if (this.displayType=="week-end") {
						var d = new Date(selected_year,selected_month-1,selected_date,0,0,0,0);
						d.setDate(d.getDate() + (7-col));
						selected_year = d.getYear();
						if (selected_year < 1000) { selected_year += 1900; }
						selected_month = d.getMonth()+1;
						selected_date = d.getDate();
						}
					result += '	<TD CLASS="'+this.cssPrefix+dateClass+'"><A HREF="javascript:'+windowref+this.returnFunction+'('+selected_year+','+selected_month+','+selected_date+');'+windowref+'CP_hideCalendar(\''+this.index+'\');" CLASS="'+this.cssPrefix+dateClass+'">'+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>';
			}
		var current_weekday = now.getDay() - this.weekStartDay;
		if (current_weekday < 0) {
			current_weekday += 7;
			}
		result += '<TR>\n';
		result += '	<TD COLSPAN=7 ALIGN=CENTER CLASS="'+this.cssPrefix+'cpTodayText">\n';
		if (this.disabledDatesExpression!="") {
			var ds=""+now.getFullYear()+LZ(now.getMonth()+1)+LZ(now.getDate());
			eval("disabled=("+this.disabledDatesExpression+")");
			}
		if (disabled || this.disabledWeekDays[current_weekday+1]) {
			result += '		<SPAN CLASS="'+this.cssPrefix+'cpTodayTextDisabled">'+this.todayText+'</SPAN>\n';
			}
		else {
			result += '		<A CLASS="'+this.cssPrefix+'cpTodayText" HREF="javascript:'+windowref+this.returnFunction+'(\''+now.getFullYear()+'\',\''+(now.getMonth()+1)+'\',\''+now.getDate()+'\');'+windowref+'CP_hideCalendar(\''+this.index+'\');">'+this.todayText+'</A>\n';
			}
		result += '		<BR>\n';
		result += '	</TD></TR></TABLE></CENTER></TD></TR></TABLE>\n';
	}

	// Code common for MONTH, QUARTER, YEAR
	// ------------------------------------
	if (this.displayType=="month" || this.displayType=="quarter" || this.displayType=="year") {
		if (arguments.length > 0) { var year = arguments[0]; }
		else { 
			if (this.displayType=="year") {	var year = now.getFullYear()-this.yearSelectStartOffset; }
			else { var year = now.getFullYear(); }
			}
		if (this.displayType!="year" && this.isShowYearNavigation) {
			result += "<TABLE WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>";
			result += '<TR>\n';
			result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="javascript:'+windowref+'CP_refreshCalendar('+this.index+','+(year-1)+');">&lt;&lt;</A></TD>\n';
			result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="100">'+year+'</TD>\n';
			result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="22"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="javascript:'+windowref+'CP_refreshCalendar('+this.index+','+(year+1)+');">&gt;&gt;</A></TD>\n';
			result += '</TR></TABLE>\n';
			}
		}
		
	// Code for MONTH display 
	// ----------------------
	if (this.displayType=="month") {
		// If POPUP, write entire HTML document
		result += '<TABLE WIDTH=120 BORDER=0 CELLSPACING=1 CELLPADDING=0 ALIGN=CENTER>\n';
		for (var i=0; i<4; i++) {
			result += '<TR>';
			for (var j=0; j<3; j++) {
				var monthindex = ((i*3)+j);
				result += '<TD WIDTH=33% ALIGN=CENTER><A CLASS="'+this.cssPrefix+'cpText" HREF="javascript:'+windowref+this.returnMonthFunction+'('+year+','+(monthindex+1)+');'+windowref+'CP_hideCalendar(\''+this.index+'\');" CLASS="'+date_class+'">'+this.monthAbbreviations[monthindex]+'</A></TD>';
				}
			result += '</TR>';
			}
		result += '</TABLE></CENTER></TD></TR></TABLE>\n';
		}
	
	// Code for QUARTER display
	// ------------------------
	if (this.displayType=="quarter") {
		result += '<BR><TABLE WIDTH=120 BORDER=1 CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER>\n';
		for (var i=0; i<2; i++) {
			result += '<TR>';
			for (var j=0; j<2; j++) {
				var quarter = ((i*2)+j+1);
				result += '<TD WIDTH=50% ALIGN=CENTER><BR><A CLASS="'+this.cssPrefix+'cpText" HREF="javascript:'+windowref+this.returnQuarterFunction+'('+year+','+quarter+');'+windowref+'CP_hideCalendar(\''+this.index+'\');" CLASS="'+date_class+'">Q'+quarter+'</A><BR><BR></TD>';
				}
			result += '</TR>';
			}
		result += '</TABLE></CENTER></TD></TR></TABLE>\n';
		}

	// Code for YEAR display
	// ---------------------
	if (this.displayType=="year") {
		var yearColumnSize = 4;
		result += "<TABLE WIDTH=144 BORDER=0 BORDERWIDTH=0 CELLSPACING=0 CELLPADDING=0>";
		result += '<TR>\n';
		result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="50%"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="javascript:'+windowref+'CP_refreshCalendar('+this.index+','+(year-(yearColumnSize*2))+');">&lt;&lt;</A></TD>\n';
		result += '	<TD CLASS="'+this.cssPrefix+'cpYearNavigation" WIDTH="50%"><A CLASS="'+this.cssPrefix+'cpYearNavigation" HREF="javascript:'+windowref+'CP_refreshCalendar('+this.index+','+(year+(yearColumnSize*2))+');">&gt;&gt;</A></TD>\n';
		result += '</TR></TABLE>\n';
		result += '<TABLE WIDTH=120 BORDER=0 CELLSPACING=1 CELLPADDING=0 ALIGN=CENTER>\n';
		for (var i=0; i<yearColumnSize; i++) {
			for (var j=0; j<2; j++) {
				var currentyear = year+(j*yearColumnSize)+i;
				result += '<TD WIDTH=50% ALIGN=CENTER><A CLASS="'+this.cssPrefix+'cpText" HREF="javascript:'+windowref+this.returnYearFunction+'('+currentyear+');'+windowref+'CP_hideCalendar(\''+this.index+'\');" CLASS="'+date_class+'">'+currentyear+'</A></TD>';
				}
			result += '</TR>';
			}
		result += '</TABLE></CENTER></TD></TR></TABLE>\n';
		}
	// Common
	if (this.type == "WINDOW") {
		result += "</BODY></HTML>\n";
		}
	return result;
	}