title: Javascript python communication
body: <p>With CEFPython can we create the prototype of a javascript function and build the function in python?</p>
  
  <pre><code>&lt;button onclick="somme(b,a)"&gt;SOMME&lt;/button&gt;
  &lt;label id='prompt'&gt;Bonjour&lt;/label&gt;
  
  def somme(self,b,a):
      self.ExecuteJavascript(document.getElementById('id').innerHTML = "somme ="+b+a)
  </code></pre>