SOURCE

new Yox({
  el: '#app',
  template: '#template',
  methods: {
    bubbleUp: function () {
      alert('bubble up')
    },
    submit: function (event) {
      event.stop()
    }
  }
})

<div id="app"></div>
<script id="template" type="text/plain">
	<div on-click="bubbleUp()">
    <button on-click="submit()">
    	Submit
    </button>
  </div>
</script>