JavaScript

Hi Anthony

JavaScript contains a native Date object, you can add months to it as follows...
var endDate = document.getElementById('enddate').value;
var date = new Date(endDate); date.setMonth(date.getMonth() + 2);
// Yes it will calculate going over a year etc
prevExpiryDate = date.getFullYear() + "/" + (date.getMonth() + 1) + "/" +
// Months are 0 for January etc.
date.getDate(); Note

• The format you are inputting the value to the Date object is important you will want to validate this first.
• When we are creating the expiry date the value will not be prepended with zeros 2012/12/09, it will be 2012/12/9

Or you can use a library as suggested


Read more here

http://stackoverflow.com/questions/12798535/javascript-display-expiry-date-upon-user-input-of-start-end-date
Please accept and up vote if it helped you
Kindest Regards
Sibeesh
http://sibeeshpassion.com/