According to yuicompressor:

/jstools/jscalendar/lib/lang/calendar-al.js:
[ERROR] 92:75:unterminated string literal
[ERROR] 92:75:syntax error
[ERROR] 93:8:unterminated string literal
[ERROR] 93:8:syntax error
[ERROR] 96:10:syntax error

jstools/jscalendar/lib/lang/calendar-he-utf8.js
[ERROR] 86:12:missing ; before statement
[ERROR] 86:14:illegal character
[ERROR] 86:17:unterminated string literal
[ERROR] 86:17:syntax error