Calendar

var testWindow; var formType; var fName; function update(themonth,theday){ document.forms[fName].elements[formType+'Day'].options[theday - 1].selected = true; document.forms[fName].elements[formType+'Month'].options[themonth].selected = true; testWindow.close(); } function isLeapYear( yrStr ) { var leapYear = false; var year = parseInt( yrStr, 10 ); // every fourth year is a leap year if ( year % 4 == 0 ) { leapYear = true; // unless it's a multiple of 100 if( year % 100 == 0 ) { leapYear = false; // unless it's a multiple of 400 if( year % 400 == 0 ) { leapYear=true; } } } return leapYear; } function loadCalendar(viewMonth) { testWindow.document.close(); testWindow.document.open(); var day_of_week = new Array("Sun","Mon","Tue","Wed","Thu","Fri","Sat"); var month_of_year = new Array("January","February","March","April","May","June","July","August","September","October","November","December"); var dateObj = new Date(); var year = dateObj.getYear(); // Returns year var month = dateObj.getMonth(); // Returns month (0-11) var today = dateObj.getDate(); // Returns day (1-31) var weekday = dateObj.getDay(); // Returns day (1-31) var DAYS_OF_WEEK = 7; // "constant" for number of days in a week var minMonth = dateObj.getMonth(); var maxMonth = month-1; var thisYear = year; var cal; // Used for printing if (viewMonth < month) { year = year + 1; } if(year < 1900){ year += 1900; //done to solve the problem of netscape and mozilla returning year in form 10X for years > 2000 } month = viewMonth; var DAYS_OF_MONTH = 31; // "constant" for number of days in a month if (month == 1) { if (isLeapYear(year)) { DAYS_OF_MONTH = 29; } else { DAYS_OF_MONTH = 28; } } if (month == 3 | month == 5 | month == 8 | month == 10) { DAYS_OF_MONTH = 30; } dateObj.setDate(1); // Start the calendar day at '1' dateObj.setMonth(month); // Start the calendar month at now dateObj.setYear((year)); // VARIABLES FOR FORMATTING var prevM = month - 1; var nextM = month + 1; if (nextM == 12) { nextM = 0; } if (prevM == -1) { prevM = 11; } // BEGIN CODE FOR CALENDAR cal = '' + '\n'; cal += '' + '\n'; cal += '' + '\n'; cal += '' + '\n'; cal += 'Calendar' + '\n'; cal += '' + '\n'; cal += '' + '\n'; cal += '' + '\n'; cal += '' + '\n'; cal += '

' + '\n'; cal += '

'; if ((year == thisYear) && (month == minMonth) ) { cal += 'Next Month'; } else { cal += 'Previous Month'; } if ((month == maxMonth) && (year > thisYear)) { cal += 'Next Month'; } else { cal += 'Next Month'; } cal += month_of_year[month] + ' ' + year; cal += '

' + '\n'; for(index=0; index < DAYS_OF_WEEK; index++) { // PRINTS DAY NAMES cal += '

' + day_of_week[index] + '

' + '\n'; } cal += '

'; for(index=0; index < dateObj.getDay(); index++) {// FILL IN BLANK GAPS UNTIL FIRST DAY OF THE MONTH cal += ' '; } for(index=0; index < DAYS_OF_MONTH; index++) {// PRINTS EACH DAY IN CALENDAR var day = dateObj.getDate(); cal += '' + day + ''; dateObj.setDate(dateObj.getDate()+1); } cal += '

' + '\n'; cal += '

' + '\n'; cal += '' + '\n'; cal += ''; //cal = '' + dateObj.getMonth(); ''; // PRINT CALENDAR testWindow.document.write(cal); } function openCalendar(formName,type) { formType=type; fName=formName; testWindow = window.open('','dates','width=238,height=246,resizable=1,status=1,menubar=0,location=0'); loadCalendar(document.forms[fName].elements[formType+'Month'].selectedIndex); }