<select name="expiremonth" id="expiremonth" class="form-control expiremonth"  onchange="setExp(Package)"></select>
<select name="expireyear" id="expireyear" class="form-control expireyear" onchange="setExp(Package)"></select>

<script>
(function() {
    var expiremonth = document.getElementById('expiremonth');
    var expireyear = document.getElementById('expireyear');
    var expDate = new Date();
    var expYear = expDate.getFullYear();
    var expMonth = expDate.getMonth();
    var amtFutureYears = 15;

   //expiration year
   for (var i = 0; i < amtFutureYears; i++) {
       var expYearOption = document.createElement('option');
       expYearOption.value = expYear + i;
       expYearOption.innerHTML = expYear + i;
       expireyear.appendChild(expYearOption);

       //expireyear[i].setAttribute('y', 'y');
   }

   expireyear[0].setAttribute('selected', 'yes');


   //expiration month
   for (var j = 1; j < 13; j++) {
       var expMonthOption = document.createElement('option');

       if (j < 10) {
           j = '0' + j;
       }

       expMonthOption.value = j;
       expMonthOption.innerHTML = j;
       expiremonth.appendChild(expMonthOption);
   }

   expiremonth[expMonth].setAttribute('selected', 'selected');

expireyear.onchange = function() {
    console.log(expireyear[0].value);
}

expiremonth.onchange = function() {
    console.log(expiremonth.value);
}

})();

console.log(expiremonth.value);


window.onload = function() {
        //setExp(Package);
}
</script>