title: jQuery datepicker Difference between "dateFormat" & "altFormat"
body: <p>According to this documentation, <a href="http://jqueryui.com/demos/datepicker/#option-altFormat" rel="noreferrer">http://jqueryui.com/demos/datepicker/#option-altFormat</a></p>
  
  <p>I can set a different date format for the user to see, and a different format to actually send to the server.</p>
  
  <p>However, both seem to show the same format.</p>
  
  <p>Here is my code:</p>
  
  <pre><code>        $("#joindate").datepicker({
              dateFormat: $.datepicker.TIMESTAMP,
              altFormat: 'yy-mm-dd'
          });
  </code></pre>
  
  <p>And, I would want the user to see yy-mm-dd format, and send the timestamp to the server using my post request. I have switched the values of altFormat and dateFormat, but either I get yy-mm-dd in both (textbox and $_POST) or the timestamp in both.</p>
  
  <p>Is there a workaround to this ?</p>