<div ng-show="paypalButton != null" ng-bind-html="paypalButton" class="ng-binding">
  <form method="post" action="https://www.paypal.com/cgi-bin/webscr" class="paypal-button" target="_top">
    <div class="hide" id="errorBox">
    </div>
    <input type="hidden" name="amount" value="3">
    <input type="hidden" name="item_name" value="My Subscription">
    <input type="hidden" name="currency_code" value="EUR">
    <input type="hidden" name="p3" value="1">
    <input type="hidden" name="t3" value="M">
    <input type="hidden" name="cmd" value="_xclick-subscriptions">
    <input type="hidden" name="a3" value="3">
    <input type="hidden" name="business" value="foo@bar.com">
    <input type="hidden" name="bn" value="JavaScriptButton_subscribe">
    <input type="hidden" name="env" value="www">
    <button type="submit" class="paypal-button large">
      Subscribe
    </button>
  </form>
</div>