title: Change option dynamically in JQuery UI DatePicker fails
body: <p>I want to make date range selection using jquery-ui datepicker. First change at #dteStart succeed to set minDate at #dteEnd. 
  But #dteEnd failed to refresh its options on next change, if i alert
  <code>DateOptions.minDate</code> its value changed according to dateMin.</p>
  
  <p>Maybe i miss something here...</p>
  
  <pre><code>$(document).ready(function () 
  {
      $("#dteStart").datepicker()
      .change(function () 
      {
          dateStart = $(this).datepicker('getDate');
          dateMin = new Date(dateStart.getTime());
          dateMin.setDate(dateMin.getDate() + 1);
  
          var DateOptions = {
              dateformat: "mm/dd/yyyy",
              minDate: dateMin
          }
          $("#dteEnd").datepicker(DateOptions);
      });
  });
  </code></pre>
  
  <p>TIA,</p>
  
  <p>REV</p>