title: Is it possible to submit a hidden field and control its value with x-editable?
body: <p>inside the document of X-editable,  we can create a new record, but how to edit an existing record, and post its name and email fields as well as its id =1(this id not changed) to the backend?</p>
  
  <pre><code>&lt;table&gt;
      &lt;thead&gt;&lt;th&gt;id&lt;/th&gt;&lt;th&gt;name&lt;/th&gt;&lt;td&gt;email&lt;/th&gt;&lt;/thead&gt;
      &lt;tbody＞
          &lt;tr&gt;&lt;td&gt;&lt;span&gt;1&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&lt;span class='myeditable'&gt;name&lt;/span&gt;&lt;/td&gt;&lt;td&gt;&lt;span class='myeditable'&gt;email@example.com&lt;/span&gt;&lt;/td&gt;&lt;/tr&gt;
      &lt;/tbody&gt;
  &lt;/table&gt;
  
  $('.myeditable').editable({
      type: input,
      url: '/edituser'
  });
  
  $('#save-btn').click(function() {
      $('.myeditable').editable('submit', {
          url: '/edituser',
          ajaxOptions: {
              dataType: 'json' //assuming json response
          },
          success: function(data, config) {
              if(data &amp;&amp; data.id) { //record created, response like {"id": 2}
              },
              error: function(errors) {
              }
      });
  });
  </code></pre>