$(document).ready(function() {
  var loader =  "<img src='/themes/admin/blackdiamond/images/icons/ajax-loader-1.gif' id='loader' />";

  $("select#country").change(function(){
    $('p#state').show();
    $("select#region_id").hide();
    $('p#state').after(loader);
    $.getJSON("/en-us/commerce/account/getregion",{address_id: $(this).val(), ajax: 'true'}, function(j){
      var options = '';
      options += '<option value="">-- Select State or Region --</option>';
      for (var i = 0; i < j.length; i++) {
        options += '<option value="' + j[i].code + '">' + j[i].name + '</option>';
      }
      if (options && options != '<option value="">-- Select State or Region --</option>') {
        $("select#region_id").html(options);
        $("select#region_id").show();
        if ($("#loader").size() > 0) {
          $("#loader").remove();
        }
      } else {
        $('p#state').hide();
      }
      if ($("#loader").size() > 0) {
        $("#loader").remove();
      }
    })
  })
});