test.html

{% extends "layout.html" %}


{% block body %}
  <input type="text" id="interaction">
  <input type="submit" value="submit" id="submit">

  <script type="text/javascript" src="/static/js/jquery-1.11.1.min.js"></script>

  <script type="text/javascript">
   $(document).on('ready', function() {
     $(document).on('keyup', '#interaction', function(e) {
		   if (e.keyCode == 13) {
			   $("#submit").click();
		   }
     });
     $(document).on('click', '#submit', function() {
       alert('YAHOO!');
     });

     {% if query %}
     $("#interaction").val("{{query}}");
     $("#submit").click();
     {% endif %}
   });
  </script>
{% endblock %}