convertDate.js

// Takes a year, month, and day number and outputs a string in the format "Dec 05, 2012".
// 'month' input parameter starts with zero.
function convertDateToEnglishString(day, month, year) {
  var monthNames = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 
                    'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
  try {
    var monthName = monthNames[month];
  } catch (e) {
    alert('Invalid date');
    return;
  }
  if (day < 10)
    day = '0' + day; // zero-pad the day
  return monthName + ' ' + day + ', ' + year;
}