javascript jquery carrying html form POST data
<p>SO I have a form that look similar to</p>

<pre><code>&lt;form action="test.php" id="checksub"  method="post"&gt;

&lt;div&gt;
&lt;select name="mydropdown"&gt;
&lt;option value="buy"&gt;buy&lt;/option&gt;
&lt;option value="sell"&gt;sell&lt;/option&gt;
&lt;/select&gt;
&lt;/div&gt;

autocomplete text input that triggers "checksub"

&lt;input type="submit" id="checksub" name="checksub" style="visibility:hidden"&gt;
&lt;input type="submit" id="newsbutton" name="newsbutton"&gt;



&lt;/form&gt;



  &lt;script type="text/javascript"&gt;
$('#newbutton').click(function() {
  var newaction = "cantfinditems.php";
  $("#checksub").prop("action", newaction);
  $('#checksub').submit();
});
&lt;/script&gt;
</code></pre>

<p>Now the submit button is hidden because the autocomplete triggers it anyway,  but if the user cant find what they are looking for I want a button that says "cant find what your'e looking for?"
I want this button to have a different action to the form action, ie window.location = cantfinditems.php
but I also want to carry the POST data from the form ie  "mydropdown".
Thank you</p>
