/**
 * @param element The element to add the event
 * @param type Event type (i.e. 'click')
 * @param callback Function to execute when event is triggered
 */
function (element, type, callback) {
  try {
    element.addEventListener(type, callback, false);
  } catch (e) {
    element.attachEvent('on' + type, callback);
  }
};