Strikingly enter submit fix

strikingly_enter_submit.js

function addEvent(element, eventName, fn) {
  if (element.addEventListener)
    element.addEventListener(eventName, fn, false);
  else if (element.attachEvent)
    element.attachEvent('on' + eventName, fn);
}

var wasEnterPressed = function(e){
  return e.which == 13 || e.keyCode == 13;
};

var onFormSubmit = function(){
  var email_submit = document.querySelectorAll('.signup-form input.submit-button[type="button"]')[0];
  email_submit.click();
};

var onEmailKeyPress = function(e){
  if(wasEnterPressed(e)) {
    onFormSubmit();
  }
};

var onLoadOrNow = function(f){
  if (document.readyState === 'complete'){
    f();
  } else {
    addEvent(window, 'load', f);
  }
};

onLoadOrNow(function(){
  var email_input = document.querySelectorAll('.signup-form input[name="collected_email[email]"]')[0];
  addEvent(email_input, 'keypress', onEmailKeyPress);
});