IE7 digits render bug

[ar7em]

I've got some issues with IE7, no matter what the counter is set to, it always shows '0'. The problem starts at line 180: IE7 recognize 'digit' in 'each' loop as 'undefined'. I suppose it should be fixed like next (yet it works for me):

$.each(digits, function(i, digit) {
     if (digit) { // due to bug (http://bugs.jquery.com/ticket/4180) it may not work in IE7
          epart.append($('<span>').addClass('digit digit' + digit).text(digit));
     } else {
          var ie_digit = digits.charAt(i);
          epart.append($('<span>').addClass('digit digit' + ie_digit).text(ie_digit));                            
     }                        
});

Thank you for attention and your hard work.