Onshow event of datepicker
<p>I want add class to datepicker when display. I wrote this code but don't work .</p>

<p>how to do this?</p>

<pre><code>$(targetEl).datepicker({
      dateFormat: "yy/mm/dd",
      changeMonth: true,
      changeYear: true,
      yearRange: "-100:-13",
      defaultDate: "-13y",
      regional: '',
      isRTL: true,
      onShow: function () { $("#ui-datepicker-div").addClass("DatePikerEN"); }

});
</code></pre>