jquery UI Dialog and __DoPostback
<p>I have a problem with the jquery-ui dialog in ASP.NET form,</p>

<pre><code>$("#pnlReceiverDialog").dialog({
  autoOpen:false, 
  modal: true,
  height:220, 
  width:500,
  resizable :false,
  overlay: {  opacity: 0.5,background: "black" },
  buttons: {
    "Cancel": function() { 
      $(this).dialog("close");
    },
    "Ok": function() {
      __doPostBack('ctl00$phContent$ctl00$LetterLocation$pupNewReceiver','')
    }
  }
});
</code></pre>

<p>pnlReceiverDialog contains an asp.net TextBox.</p>

<p>When I click in the OK button, the form posts back but the textbox doesn't have value.</p>

<p>Thanks and sorry for bad English</p>
