title: Change hidden field Value with jquery and get the new value in server
body: <p>I change value off the hidden field with jquery and now i want to get the new value in server.
  i use asp.net and this is my jquery code:</p>
  
  <pre><code>$('#HiddenField').val("NewValue");
  </code></pre>
  
  <p>and this is my html tag:</p>
  
  <pre><code>&lt;input id="HiddenField" type="hidden" runat="server" value=""/&gt;
  </code></pre>
  
  <p>in my page i change the value of the <code>'#HiddenField'</code> and i want to get the NewValue in server side.</p>