jquery datepicker not working in popup

jquery datepicker not working in popup

1>i have include below code inside <head> section
 <script>
    $(function() {
        $( "#datepicker" ).datepicker({
            numberOfMonths: 1,
            showButtonPanel: true
           
        });
    });
    </script>
and
2>
  < link rel = "stylesheet" href = "http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" />
     < script src = "http://code.jquery.com/jquery-1.8.3.js" ></ script >
     < script src = "http://code.jquery.com/ui/1.9.2/jquery-ui.js" ></ script >
 document.getElementById('popupBlow').innerHTML=" <tr> <td><input type='hidden' id='hidDate' value='' name='hidDate'> </td></tr>  <tr> <td ><p> <font size='+1' color='#CC3300'>Date:&nbsp&nbsp&nbsp&nbsp</font> <input type='text' id='datepicker' onchange='tableBook();'/><";

3>i include below code in <body> section
<tr>
    <td colspan="2"><div id="popupBlow" align="center"> </div>  </td>
   </tr>
 i am not getting jquery datepicker popup in runtime.
i wan't immediate help.