$attrcode =~ s/^patron_attr_filter_//;
$cgi_attrcode_to_attrvalues{$attrcode} = \@attrvalues;
print STDERR ">>>param($attrcode)[@{[scalar @attrvalues]}] = '@attrvalues'\n" if $debug;
$attrcode =~ s/^patron_attr_filter_//;
$cgi_attrcode_to_attrvalues{$attrcode} = \@attrvalues;
print STDERR ">>>param($attrcode)[@{[scalar @attrvalues]}] = '@attrvalues'\n" if $debug;