how to select positions <a> onSelect for firefox in datepicker?

how to select positions <a> onSelect for firefox in datepicker?

 
    
  
  1. 
  
  2. $('.font_datepicker_page').datepicker({
    3. 
  
  3.     
    4. 
  
  4.     onSelect: function(dateText, inst) {
    5. 
  
  5.                   //I need to get X & Y.
    6. 
  
  6.            var targetOffset = $(event.target).offset();
    7. 
  
  7.            SelectPresentByDay(dateText, targetOffset);
    8. 
  
  8.       },
    9. 
  
  9.               changeMonth: true,
    10. 
  
  10.               altFormat: "yy-MM-dd",
    11. 
  
  11.               yearRange: "2002:2012",
    12. 
  
  12.  }); 
    13. 
  

    14. 
  
  14. function SelectPresentByDay(date, targetOffset) {
    15. 
  
  15.     html = 'text';
    16. 
  
  16.      $(".calendar-item-popup .box-cont").html(html);
    17. 
  
  17.                       
    18. 
  
  18.         var etop=Math.floor(targetOffset.top)+52;
    19. 
  
  19.  var eleft=Math.floor(targetOffset.left)+57;
    20. 
  
  20.       // show div
    21. 
  
  21.         $('.calendar-item-popup').css({top:etop,left:eleft}).fadeIn(190);  
    22. 
  
  22. }
    23. 
 
in firefox does not take event.
I need to get the coordinates of a mouse click on the date and show the next data window
in firefox does not work http://jsfiddle.net/hea8y/z8auC/