Attach events on IE8

[tracend]

Consider having backwards support for attaching events. For example:

// Vanilla
function attachEvent(element, type, handler) {
    if (element.addEventListener) {
        element.addEventListener(type, handler, false);
    }else if (element.attachEvent) {
        element.attachEvent('on' + type, handler);
    } else {
        element['on' + type] = handler;
    }
}

[].forEach.call(document.querySelectorAll('a'), function(el) {
  attachEvent(el, 'click', function() {
    // code…
  });
});