Append options to a select element using javascript

//dynamically add 20 years from this year to drop-down

      var select = document.getElementById(“ccexp”);

      var startYear = new Date().getFullYear();

      var option, currentYear, currentYearString, currentYearTwoDigit;

      for (var i = 0; i <= 20; i++) {

          currentYear = startYear + i;

          currentYearString = currentYear.toString();

          currentYearTwoDigit = currentYearString.substring(2);

          option = document.createElement(“option”);

          option.setAttribute(“value”, currentYearTwoDigit);

          option.appendChild(document.createTextNode(currentYear));

          select.appendChild(option);

      }

Javascript to append options to a select element