title: Jquery datepicker set server date as default
body: <p>I'm using the jQuery datepicker from jqueryui.com and im  changing the calendar to 'fa'.It's 
  work fine.I want to get today from server by ahax call(because date in client may be not be correct)and set as default.If i set default date to another date(not today) its work fine and date is highlighted correctly,but if date is today,date is not highlighted in calendar
  I have this code:</p>
  
  <pre><code>$('#txtVacationStartDate').datepicker({
      dateFormat: 'y/mm/dd',
  });
  </code></pre>
  
  <p>This code from set default:</p>
  
  <pre><code>  $("#txtVacationstartSDate").datepicker("setDate", new Date("2014/06/05"));//not today and work fine(highlighted  in calendar)
    $("#txtVacationStartDate").datepicker("setDate", new Date("2014/06/06"));// today and not work(not highlighted  in calendar)
  </code></pre>
  
  <p>This code is  ajax Call</p>
  
  <pre><code>  $.ajax({
      url: "GetDataHandler.ashx?action=getDateTime",
      type: "GET",
      async: false,
      success: function (dateResult) {
          $("#txtVacationStartDate").datepicker("setDate", new Date(dateResult)); //dateResult="2014/06/05"
      }
  }); 
  </code></pre>