$(document).ready(function() {
  var download_widget_text = $("textarea.download_url.widget_text");
  var download_original_link = download_widget_text.val();
  var new_link = function(package) {
    chunk = download_original_link.split('"');
    download_widget_text.val(chunk[0] + chunk[1] + chunk[2] + chunk[3] + "?package=" + package + chunk[4]);
  }
  var handlePackageSelect = function(e) { new_link($(e.target).val()); }
	$("form select#package_select").change(handlePackageSelect);
});