Why F11 and F5 cannot work on IE6 using JQuery

Why F11 and F5 cannot work on IE6 using JQuery

hi, my code does not work on F11&F5 but work fine on the Ctrl and Alt in IE6. here, is my code:

<

script type = text/javascript src = "js/jquery-1.4.2.min.js" ></ script >

<
script type = "text/javascript" >
      $(document).ready(function(){
            $(document).keyup(function (e) {
                  if(e.keyCode == 122)
                        alert('Keyboard shortcuts + KeyUp!');
                        return false;
            }).keydown(function (e) {
                  if(e.keyCode == 122) {
                        alert('Keyboard shortcuts + Keydown!');
                        return false;
                  }
            });
       });
</script>
 
please help me ... i am truly appreciate it.. thanks