# use new info
##
- $cgi->param('year') =~ /^(\d+)$/
+ $cgi->param('year') =~ /^(\d{4})/
or errorpage("illegal year ". $cgi->param('year'));
$year = $1;
- $cgi->param('month') =~ /^(\d+)$/
+ $cgi->param('month') =~ /^(\d{2})/
or errorpage("illegal month ". $cgi->param('month'));
$month = $1;