In my firefox error console i get the foll errors

Error: record has no properties
Source File: file:///C:/Documents%20and%20Settings/Admin/Application%20Data/Mozilla/Firefox/Profiles/x1pbncjg.default/extensions/%7B3112ca9c-de6d-4884-a869-9855de68056c%7D/lib/toolbar.js
Line: 443

Error: weekend has no properties
Source File: file:///C:/Documents%20and%20Settings/Admin/Desktop/pop%20up%20calendar/ganesh/onlyneeded/calendar.js
Line: 1534

The calendar pops up (for eg. when i use calendar-fr), but i cant see the dates.
if i use calendar-al, then the calendar does not come up.