File: getHoliday-en.html

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File: getHoliday-en.html
Role: Example script
Content type: text/plain
Description: Example of use (getHoliday) for english users
Class: JavaScript Holiday Dates
Calculator for the dates of different holidays
Author: By
Last change:
Date: 9 years ago
Size: 2,769 bytes


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<html> <head> <title>DateObj.getHoliday()</title> <script language="javascript" type="text/javascript"> // For english users: Date.prototype.getHoliday=function(v){var Y,y,a,b,c,D,d,e,f,g,M,m,p,v,s;var i=new Array(-45,-41,0,39,49);var s="ashleneasascwhi";var p=s.indexOf(v.substring(0,3).toLowerCase())/3;Y=''+this.getFullYear();y=Y.substr(2,2);a=Y%19;b=Y%4;c=Y%7;e=((19*a)+24)%30;f=((2*b)+(4*c)+(6*e)+5)%7;g=(22+e+f);h=new Date(Y,2,g+i[p],0,0,0);d=h.getDate();D=(d<10)?'0'+d:d;m=h.getMonth()+1;M=(m<10)?'0'+m:m;return M+'/'+D+'/'+Y;}; </script> <script language="javascript" type="text/javascript"> //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // Test the validity of a French date (DD/MM/YYYY). // Return "OK" or an error message // You can interchange the lines A and B (with indices correction) for a format such as MM/DD/YYYY function isValidDate(date) { var date, tab, reg = new RegExp("^[0-9]{2}[/]{1}[0-9]{2}[/]{1}[0-9]{4}$","g"); if(reg.test(date)) { tab=date.split('/'); if((tab[0]*1)<1 || (tab[0]*1)>31) { return "Incorrect day"; } // A if((tab[1]*1)<1 || (tab[1]*1)>12) { return "Incorrect month"; } // B return "OK"; } return "Incorrect format date"; } function showHoliday() { var holiday, vacation, date, tab, j, m, a, thedate, msg; holiday =[].value; vacation =[].text; date =; tab = date.split('/'); j=tab[0]*1; m=tab[1]-1; a=tab[2]*1; thedate = new Date(a, m, j); msg = vacation+' '+thedate.getFullYear()+' arrives on '+thedate.getHoliday(holiday); alert(msg); } function verif() { var thedate, msg; // get the values of the form thedate =; if(!thedate) { alert('Date is missing');; return false; } msg = isValidDate(thedate); if(msg != "OK") { alert("Date :\n"+msg);; return false; } return true; } </script> </head> <body> <h3>Movable holidays</h3> <form name="test" method="post" action="javascript:showHoliday()" onsubmit="return verif()"> Write an undistinguished date (DD/MM/YYYY) <input type="text" name="date" size="10"><br/> For this year, what movable holiday do you want ? <select name="holiday"> <option value="Ash">Ash</option> <option value="Lent">Lent</option> <option value="Easter">Easter</option> <option value="Ascension">Ascension</option> <option value="Whitesun">Whitesun</option> </select><br/> <input type="submit" name="submit" value="Validate"> </form> </body> </html>