title: post form with ajax and additional json data
body: <p>I send a form via jquery ajax. I do not only want to send the values of the formcollection I also want to send another id which is hidden in the page.</p>
  
  <p>How can I send the form data + this id? Maybe there is a way to create one json object and I put everything in it?</p>
  
  <pre><code>   jQuery('#myForm').live('submit',function(event) {
          $.ajax({
              url: 'Url.Action("Create")',
              type: 'POST',           
              data: $('#myForm').serialize(),
              success: function( data ) {
  
              }
          });
          return false;
      });
  </code></pre>